running multiple tomcat instances as windows service
we are using tomcat 5.0.28 on windows server. I have been trying to install multiple tomcat instances . Our goal is to run multiple instances on port 80 of virtual IPs. But for testing, i'm using differnt port numbers instead of ips.. Here r the steps i performed, (a) installed tomcat on c:\TC1 (b) copied conf,logs,shared,temp,webapps, work folders from c:\TC1 into c:\TC2 (c) changed port entries into TC2\conf\server.xml Server port=8006 , Connector port=8081 (d) on cmd prompt c:\TC1\bin set CATALINA_BASE=C:\TC2 c:\TC1\binservice.bat install TC2 This will install the TC2 windows service, but the service won't start . If i check the properites of the service, it's pointing to C:\TC1\bin\tomcat5.exe //RS//tc2 What is wrong?? I couldn't find any step by step guide to setup multiple instances of tomcat as windows service on Tomcat users list or any other web resource. Any pointers will be appreciated. Thanks, Jaynika - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Multiple tomcat instances
Hi, Is it possible to run multiple instances of tomcat on the same server, for example to support production and test environments ? Thanks in advance, Steve.
RE: Multiple tomcat instances
yes, just modify the server.xml on the 2nd instance so it runs on different ports. Ta Matt -Original Message- From: Kelly, Steve [mailto:[EMAIL PROTECTED] Sent: 15 April 2005 10:33 To: tomcat-user@jakarta.apache.org Subject: Multiple tomcat instances Hi, Is it possible to run multiple instances of tomcat on the same server, for example to support production and test environments ? Thanks in advance, Steve. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Multiple tomcat instances
From: Kelly, Steve [mailto:[EMAIL PROTECTED] Is it possible to run multiple instances of tomcat on the same server, for example to support production and test environments ? Yes. I run up to four on this machine - two (one 4.1, one 5.0) are running as I type this. Here's a Windows script that works (give or take the HOME path) for Tomcat 4 and 5.0 - untested on 5.5, but I can't see why it should fail. The UNIX equivalent is pretty obvious. Check out CATALINA_HOME - where Tomcat is installed - versus CATALINA_BASE - where this instance stores its files. Note the JAVA_OPTS for increased stack and heap sizes, too; this line is optional. C:\cattery is where I store the data for the four instances. -- snip -- set CATALINA_HOME=C:\Program Files\Apache Group\Tomcat 4.1 set CATALINA_BASE=c:\cattery\instance1 set JAVA_OPTS=-Xms64m -Xmx256m cd %CATALINA_HOME%\bin startup -- snip -- Under CATALINA_BASE for each instance, you'll need conf, logs, temp, webapps, and work directories. The easiest way to create these is to copy them from CATALINA_HOME. You'll then need to modify conf/server.xml to make sure each instance is running on its own ports - don't forget to change the shutdown port! Good luck, yell if you have any problems getting this to work. - Peter - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Multiple tomcat instances
On 4/15/05, Peter Crowther [EMAIL PROTECTED] wrote: From: Kelly, Steve [mailto:[EMAIL PROTECTED] Is it possible to run multiple instances of tomcat on the same server, for example to support production and test environments ? Yes. I run up to four on this machine - two (one 4.1, one 5.0) are running as I type this. Here's a Windows script that works (give or take the HOME path) for Tomcat 4 and 5.0 - untested on 5.5, but I can't see why it should fail. The UNIX equivalent is pretty obvious. Check out CATALINA_HOME - where Tomcat is installed - versus CATALINA_BASE - where this instance stores its files. Note the JAVA_OPTS for increased stack and heap sizes, too; this line is optional. C:\cattery is where I store the data for the four instances. -- snip -- set CATALINA_HOME=C:\Program Files\Apache Group\Tomcat 4.1 set CATALINA_BASE=c:\cattery\instance1 set JAVA_OPTS=-Xms64m -Xmx256m cd %CATALINA_HOME%\bin startup -- snip -- Under CATALINA_BASE for each instance, you'll need conf, logs, temp, webapps, and work directories. The easiest way to create these is to copy them from CATALINA_HOME. You'll then need to modify conf/server.xml to make sure each instance is running on its own ports - don't forget to change the shutdown port! Good luck, yell if you have any problems getting this to work. - Peter - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] If you have more than one IP address you can run more than one instances on same machine on same port but different IP addresses. You have to specify the IP address in the address attribute of Connector/ element. -- Anto Paul - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Multiple tomcat instances
Another option which uses fewer resources but doesn't provide quite the same degree of isolation is to run two hosts in the same Catalina service. If your DNS maps www.mydomain.com and test.mydomain.com to the same IP address, they can share the same ports. Each one can have its own logs, Servlet mappings, and set of apps. Fritz -Original Message- From: Peter Crowther [mailto:[EMAIL PROTECTED] Sent: Friday, April 15, 2005 2:55 AM To: Tomcat Users List Subject: RE: Multiple tomcat instances From: Kelly, Steve [mailto:[EMAIL PROTECTED] Is it possible to run multiple instances of tomcat on the same server, for example to support production and test environments ? Yes. I run up to four on this machine - two (one 4.1, one 5.0) are running as I type this. Here's a Windows script that works (give or take the HOME path) for Tomcat 4 and 5.0 - untested on 5.5, but I can't see why it should fail. The UNIX equivalent is pretty obvious. Check out CATALINA_HOME - where Tomcat is installed - versus CATALINA_BASE - where this instance stores its files. Note the JAVA_OPTS for increased stack and heap sizes, too; this line is optional. C:\cattery is where I store the data for the four instances. -- snip -- set CATALINA_HOME=C:\Program Files\Apache Group\Tomcat 4.1 set CATALINA_BASE=c:\cattery\instance1 set JAVA_OPTS=-Xms64m -Xmx256m cd %CATALINA_HOME%\bin startup -- snip -- Under CATALINA_BASE for each instance, you'll need conf, logs, temp, webapps, and work directories. The easiest way to create these is to copy them from CATALINA_HOME. You'll then need to modify conf/server.xml to make sure each instance is running on its own ports - don't forget to change the shutdown port! Good luck, yell if you have any problems getting this to work. - Peter - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Multiple tomcat instances
Can you expand a bit more how this would work. I understand how you can have two domains pointing to the same ip address but how do I split my logs, servlet mapping and web apps. Steve. -Original Message- From: Fritz Schneider [mailto:[EMAIL PROTECTED] Sent: 15 April 2005 12:10 To: 'Tomcat Users List' Subject: RE: Multiple tomcat instances Another option which uses fewer resources but doesn't provide quite the same degree of isolation is to run two hosts in the same Catalina service. If your DNS maps www.mydomain.com and test.mydomain.com to the same IP address, they can share the same ports. Each one can have its own logs, Servlet mappings, and set of apps. Fritz -Original Message- From: Peter Crowther [mailto:[EMAIL PROTECTED] Sent: Friday, April 15, 2005 2:55 AM To: Tomcat Users List Subject: RE: Multiple tomcat instances From: Kelly, Steve [mailto:[EMAIL PROTECTED] Is it possible to run multiple instances of tomcat on the same server, for example to support production and test environments ? Yes. I run up to four on this machine - two (one 4.1, one 5.0) are running as I type this. Here's a Windows script that works (give or take the HOME path) for Tomcat 4 and 5.0 - untested on 5.5, but I can't see why it should fail. The UNIX equivalent is pretty obvious. Check out CATALINA_HOME - where Tomcat is installed - versus CATALINA_BASE - where this instance stores its files. Note the JAVA_OPTS for increased stack and heap sizes, too; this line is optional. C:\cattery is where I store the data for the four instances. -- snip -- set CATALINA_HOME=C:\Program Files\Apache Group\Tomcat 4.1 set CATALINA_BASE=c:\cattery\instance1 set JAVA_OPTS=-Xms64m -Xmx256m cd %CATALINA_HOME%\bin startup -- snip -- Under CATALINA_BASE for each instance, you'll need conf, logs, temp, webapps, and work directories. The easiest way to create these is to copy them from CATALINA_HOME. You'll then need to modify conf/server.xml to make sure each instance is running on its own ports - don't forget to change the shutdown port! Good luck, yell if you have any problems getting this to work. - Peter - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Multiple tomcat instances
Steve, In the Host definition you specify an appBase for the applications directory (which will have a new ROOT under it), a Valve for the AccessLog, and whatever else you want to split off. The applications in the appBase directory will have their own WEB-INFO where you specify Servlet mappings, etc. The only restriction that I can think of is that the servlets in WEB-INF/web.xml must have different Servlet-names from those in conf/web.xml Fritz -Original Message- From: Kelly, Steve [mailto:[EMAIL PROTECTED] Sent: Friday, April 15, 2005 7:41 AM To: Tomcat Users List Subject: RE: Multiple tomcat instances Can you expand a bit more how this would work. I understand how you can have two domains pointing to the same ip address but how do I split my logs, servlet mapping and web apps. Steve. -Original Message- From: Fritz Schneider [mailto:[EMAIL PROTECTED] Sent: 15 April 2005 12:10 To: 'Tomcat Users List' Subject: RE: Multiple tomcat instances Another option which uses fewer resources but doesn't provide quite the same degree of isolation is to run two hosts in the same Catalina service. If your DNS maps www.mydomain.com and test.mydomain.com to the same IP address, they can share the same ports. Each one can have its own logs, Servlet mappings, and set of apps. Fritz -Original Message- From: Peter Crowther [mailto:[EMAIL PROTECTED] Sent: Friday, April 15, 2005 2:55 AM To: Tomcat Users List Subject: RE: Multiple tomcat instances From: Kelly, Steve [mailto:[EMAIL PROTECTED] Is it possible to run multiple instances of tomcat on the same server, for example to support production and test environments ? Yes. I run up to four on this machine - two (one 4.1, one 5.0) are running as I type this. Here's a Windows script that works (give or take the HOME path) for Tomcat 4 and 5.0 - untested on 5.5, but I can't see why it should fail. The UNIX equivalent is pretty obvious. Check out CATALINA_HOME - where Tomcat is installed - versus CATALINA_BASE - where this instance stores its files. Note the JAVA_OPTS for increased stack and heap sizes, too; this line is optional. C:\cattery is where I store the data for the four instances. -- snip -- set CATALINA_HOME=C:\Program Files\Apache Group\Tomcat 4.1 set CATALINA_BASE=c:\cattery\instance1 set JAVA_OPTS=-Xms64m -Xmx256m cd %CATALINA_HOME%\bin startup -- snip -- Under CATALINA_BASE for each instance, you'll need conf, logs, temp, webapps, and work directories. The easiest way to create these is to copy them from CATALINA_HOME. You'll then need to modify conf/server.xml to make sure each instance is running on its own ports - don't forget to change the shutdown port! Good luck, yell if you have any problems getting this to work. - Peter - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
The number of tomcat directory for multiple tomcat instances
Hi, I'm running APACHE 2.0.48 with Tomcat 4.1.29 on HP box/os. I'm running multiple tomcats that are connected to Apache using round-robin load balancing. All tomcat instances and apache is running on the same HP box. The document I read states that I need a unique CATALINA_HOME for each tomcat instance. Is there a way to have one CATALINA_HOME and have multiple server.xml file in the conf directory? If I need individual catalina_home for each tomcat instance, than what is the minimum sub-directories needed for each catalina_home? i.e., do we need all of /logs, /webapps, /work, and /temp? Thanks in advance - This message and its attachments may contain privileged and confidential information. If you are not the intended recipient(s), you are prohibited from printing, forwarding, saving or copying this email. If you have received this e-mail in error, please immediately notify the sender and delete this e-mail and its attachments from your computer. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: The number of tomcat directory for multiple tomcat instances
Terry Chung wrote: I'm running APACHE 2.0.48 with Tomcat 4.1.29 on HP box/os. I'm running multiple tomcats that are connected to Apache using round-robin load balancing. All tomcat instances and apache is running on the same HP box. This configuration seems a bit strange. If you have only one machine, I see no need to balance load between instances. There is always the maximum load on this machine. The document I read states that I need a unique CATALINA_HOME for each tomcat instance. Is there a way to have one CATALINA_HOME and have multiple server.xml file in the conf directory? If I need individual catalina_home for each tomcat instance, than what is the minimum sub-directories needed for each catalina_home? i.e., do we need all of /logs, /webapps, /work, and /temp? There must only be one unique CATALINA_HOME but individual CATALINA_BASE for each instance. Please read the section Advanced Configuration in the file RUNNING.txt which comes with tomcat for instructions. Kind regards, Wolfgang - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: isapi_redirector2.dll - IIS redirecting to multiple Tomcat instances
Matt, incase no one has helped out -- You don't need to use the lb stuff if you don't want. Enjoy. [shm:] info=Shared memory file. Required for multiprocess servers file=E:\\Apache\\Tomcat5\\work\\jk2.shm size=1048576 [lb:lb] info=Default load balancer 0. sticky_session=1 [lb:lb1] info=Default load balancer 1. sticky_session=1 [channel.socket:spprod1] info=Ajp13 forwarding over socket - spprod1 port=8009 host=10.99.116.1 lb_factor=100 tomcatId=10.99.116.1:8009 group=lb type=ajp13 [channel.socket:spprod2] info=Ajp13 forwarding over socket - spprod2 port=8009 host=10.99.116.2 lb_factor=100 tomcatId=10.99.116.2:8009 group=lb1 type=ajp13 [uri:/test1/*] info=hi mom worker=lb:lb context=/somecontext [uri:/test2/*] info=hi mom worker=lb:lb1 context=/someothercontext On Tue, 3 Aug 2004, Matt Krevs wrote: Date: Tue, 3 Aug 2004 15:32:30 +1000 From: Matt Krevs [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: isapi_redirector2.dll - IIS redirecting to multiple Tomcat instances Hi all, I'm using isapi_redirector2.dll to redirect webapp requests on my IIS server to tomcat. Is it possible to make this single redirector redirect requests to different instances of tomcat (depending on uri)? For example, a request to IIS for /app1/ should go to localhost:8080 and a request for /app2/ should go to localhost:8081. I'm using Windows, so if this is possible, what would my registry entries look like (ie: serverRoot key), and what would my workers2.properties look like? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: isapi_redirector2.dll - IIS redirecting to multiple Tomcat instances
i have. took a lot of fighting. On Thu, 5 Aug 2004, Matt Krevs wrote: Date: Thu, 5 Aug 2004 08:41:56 +1000 From: Matt Krevs [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: isapi_redirector2.dll - IIS redirecting to multiple Tomcat instances I'd be interested to hear if anyone has successfully configured a single instance of IIS directing requests to multiple Tomcat instances at all - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: isapi_redirector2.dll - IIS redirecting to multiple Tomcat instances
I'd be interested to hear if anyone has successfully configured a single instance of IIS directing requests to multiple Tomcat instances at all -Original Message- From: Matt Krevs [mailto:[EMAIL PROTECTED] Sent: Tuesday, 3 August 2004 3:33 PM To: '[EMAIL PROTECTED]' Subject: isapi_redirector2.dll - IIS redirecting to multiple Tomcat instances Hi all, I'm using isapi_redirector2.dll to redirect webapp requests on my IIS server to tomcat. Is it possible to make this single redirector redirect requests to different instances of tomcat (depending on uri)? For example, a request to IIS for /app1/ should go to localhost:8080 and a request for /app2/ should go to localhost:8081. I'm using Windows, so if this is possible, what would my registry entries look like (ie: serverRoot key), and what would my workers2.properties look like? Thanks Matt - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
isapi_redirector2.dll - IIS redirecting to multiple Tomcat instances
Hi all, I'm using isapi_redirector2.dll to redirect webapp requests on my IIS server to tomcat. Is it possible to make this single redirector redirect requests to different instances of tomcat (depending on uri)? For example, a request to IIS for /app1/ should go to localhost:8080 and a request for /app2/ should go to localhost:8081. I'm using Windows, so if this is possible, what would my registry entries look like (ie: serverRoot key), and what would my workers2.properties look like? Thanks Matt - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Multiple Tomcat Instances with Linux
start the server,after that change the port# in conf file and start the server again,i think this may helpful for u Dan Barron [EMAIL PROTECTED] wrote:Jon, I have used the CATALINA_HOME/common/lib to share jar files among different instances. Not sure if that answers your question though. Dan At 10:54 AM 6/21/2004, you wrote: Dan, Thanks for the post, good ideas I'm going to try them. One thing I'm still not clear on. My application is configured to deploy shared modules (jar files) under CATALINA_HOME/shared/lib. If I create multiple instances, how do I configure the apps to share the correct version of CATALINA_HOME/shared/lib? Do you create a separate document root that contains a shared/lib for each entry in the server.xml configuration? Jon --- Dan Barron wrote: Jon, I run multiple tomcat services on a Linux box with Apache for various development and distributions. The way I went about it is to setup multiple configurations within the server.xml file. Each service has it own port for connectivity and its own worker for mod_jk. I create a virtual host entry in mod_jk.conf file which mounts the assigned worker which in turn points to the specific tomcat service. Here's the three files I touch to make it work and an example entry. My environment is Tomcat 4.1.29, mod_jk, and Apache 1.3.27. Hope this helps. Dan *FILE:mod_jk.conf #~~~ # domain.com Virtual Host Definition #~~~ ServerName www.domain.com DocumentRoot /usr/www/domain.com ErrorLog logs/domain.com/error_log CustomLog logs/domain.com/access_log common ScriptAlias /cgi-bin/ /usr/www/domain.com/cgi-bin/ AllowOverride None Options None Order allow,deny Allow from all JkMount /servlet/* domain_worker JkMount /alpha/*.jsp domain_worker JkMount /*.jsp domain_worker **FILE: workers.properties worker.list=ajp13, domain_worker worker.ajp13.port=8009 worker.ajp13.host=localhost worker.ajp13.type=ajp13 worker.ajp13.lbfactor=20 worker.ajp13.cachesize=20 worker.domain_worker.port=8010 worker.domain_worker.host=localhost worker.domain_worker.type=ajp13 worker.domain_worker.lbfactor=20 worker.domain_worker.cachesize=20 *FILE:server.xml ... port 8081 -- className=org.apache.catalina.connector.http.HttpConnector port=8081 minProcessors=5 maxProcessors=75 enableLookups=true redirectPort=8443 acceptCount=10 debug=0 connectionTimeout=6/ -- className=org.apache.ajp.tomcat4.Ajp13Connector port=8010 minProcessors=5 maxProcessors=75 acceptCount=10 debug=0/ container hierarchy -- defaultHost=www.domain.com debug=0 levels -- className=org.apache.catalina.logger.FileLogger prefix=catalina_domain_log. suffix=.txt timestamp=true/ will be shared globally -- className=org.apache.catalina.realm.MemoryRealm / appBase=webapps/domain.com unpackWARs=true autoDeploy=true className=org.apache.catalina.valves.AccessLogValve directory=logs prefix=domain_access_log. suffix=.txt pattern=common/ className=org.apache.catalina.logger.FileLogger directory=logs prefix=domain_log. suffix=.txt timestamp=true/ At 05:26 PM 6/18/2004, Jon Feauto wrote: I see this question posted quite often, but rarely answers abound. Is it because this is too complex a topic to explain in a user group? I would think it is fairly common, anyone have ideas? Jon --- Jon Feauto wrote: Hello, I'm certain I am behind the curve on this one, but I've been looking around for several days now and haven't found the answers I need. I'm looking to setup multiple environments for Tomcat 4x on a single linux server. One for each developer and several others for different versions of test. From the mail list archives I've come to understand that CATALINA_BASE can be used to configure multiple instances. However, most examples I've seen use this in coordination with multiple server.xml files. I'm hoping there is a trick to this that I'm missing. I don't mind the extra configuration as long as that is the recommended approach. For an installation supporting a linux service, does the /etc/init.d/tomcat4 script need to be modified to set the CATALINA_BASE for each instance started? Do I need to use different port numbers to access those instances? Is the CATALINA_HOME/shared/lib actually shared across instances or can it be unique to an instance according to CATALINA_BASE? === message truncated === __ Do you Yahoo!? Yahoo! Mail - 50x more storage than
Re: Multiple Tomcat Instances with Linux
Dan, Thanks for the post, good ideas I'm going to try them. One thing I'm still not clear on. My application is configured to deploy shared modules (jar files) under CATALINA_HOME/shared/lib. If I create multiple instances, how do I configure the apps to share the correct version of CATALINA_HOME/shared/lib? Do you create a separate document root that contains a shared/lib for each Service entry in the server.xml configuration? Jon --- Dan Barron [EMAIL PROTECTED] wrote: Jon, I run multiple tomcat services on a Linux box with Apache for various development and distributions. The way I went about it is to setup multiple Service configurations within the server.xml file. Each service has it own port for connectivity and its own worker for mod_jk. I create a virtual host entry in mod_jk.conf file which mounts the assigned worker which in turn points to the specific tomcat service. Here's the three files I touch to make it work and an example entry. My environment is Tomcat 4.1.29, mod_jk, and Apache 1.3.27. Hope this helps. Dan *FILE:mod_jk.conf #~~~ # domain.com Virtual Host Definition #~~~ VirtualHost 10.10.1.10 ServerName www.domain.com DocumentRoot /usr/www/domain.com ErrorLog logs/domain.com/error_log CustomLog logs/domain.com/access_log common ScriptAlias /cgi-bin/ /usr/www/domain.com/cgi-bin/ Directory /usr/www/domain.com/cgi-bin AllowOverride None Options None Order allow,deny Allow from all /Directory JkMount /servlet/* domain_worker JkMount /alpha/*.jsp domain_worker JkMount /*.jsp domain_worker /VirtualHost **FILE: workers.properties worker.list=ajp13, domain_worker worker.ajp13.port=8009 worker.ajp13.host=localhost worker.ajp13.type=ajp13 worker.ajp13.lbfactor=20 worker.ajp13.cachesize=20 worker.domain_worker.port=8010 worker.domain_worker.host=localhost worker.domain_worker.type=ajp13 worker.domain_worker.lbfactor=20 worker.domain_worker.cachesize=20 *FILE:server.xml Server... ... Service name=domain !-- Define a non-SSL HTTP/1.1 Connector on port 8081 -- Connector className=org.apache.catalina.connector.http.HttpConnector port=8081 minProcessors=5 maxProcessors=75 enableLookups=true redirectPort=8443 acceptCount=10 debug=0 connectionTimeout=6/ !-- Define an AJP 1.3 Connector on port 8010 -- Connector className=org.apache.ajp.tomcat4.Ajp13Connector port=8010 minProcessors=5 maxProcessors=75 acceptCount=10 debug=0/ !-- Define the top level container in our container hierarchy -- Engine name=domain defaultHost=www.domain.com debug=0 !-- Global logger unless overridden at lower levels -- Logger className=org.apache.catalina.logger.FileLogger prefix=catalina_domain_log. suffix=.txt timestamp=true/ !-- Because this Realm is here, an instance will be shared globally -- Realm className=org.apache.catalina.realm.MemoryRealm / !-- Define the default virtual host -- Host name=www.domain.com debug=0 appBase=webapps/domain.com unpackWARs=true autoDeploy=true Valve className=org.apache.catalina.valves.AccessLogValve directory=logs prefix=domain_access_log. suffix=.txt pattern=common/ Logger className=org.apache.catalina.logger.FileLogger directory=logs prefix=domain_log. suffix=.txt timestamp=true/ !-- domain Root Context -- Context path= docBase= debug=0/ /Host /Engine /Service /Server At 05:26 PM 6/18/2004, Jon Feauto wrote: I see this question posted quite often, but rarely answers abound. Is it because this is too complex a topic to explain in a user group? I would think it is fairly common, anyone have ideas? Jon --- Jon Feauto [EMAIL PROTECTED] wrote: Hello, I'm certain I am behind the curve on this one, but I've been looking around for several days now and haven't found the answers I need. I'm looking to setup multiple environments for Tomcat 4x on a single linux server. One for each developer and several others for different versions of test. From the mail list archives I've come to understand that CATALINA_BASE can be used to configure multiple instances. However, most examples I've seen use this in coordination with multiple server.xml files. I'm hoping there is a trick to this that I'm missing. I don't mind the extra configuration as long as that is the recommended
Re: Multiple Tomcat Instances with Linux
Jon, I have used the CATALINA_HOME/common/lib to share jar files among different Service instances. Not sure if that answers your question though. Dan At 10:54 AM 6/21/2004, you wrote: Dan, Thanks for the post, good ideas I'm going to try them. One thing I'm still not clear on. My application is configured to deploy shared modules (jar files) under CATALINA_HOME/shared/lib. If I create multiple instances, how do I configure the apps to share the correct version of CATALINA_HOME/shared/lib? Do you create a separate document root that contains a shared/lib for each Service entry in the server.xml configuration? Jon --- Dan Barron [EMAIL PROTECTED] wrote: Jon, I run multiple tomcat services on a Linux box with Apache for various development and distributions. The way I went about it is to setup multiple Service configurations within the server.xml file. Each service has it own port for connectivity and its own worker for mod_jk. I create a virtual host entry in mod_jk.conf file which mounts the assigned worker which in turn points to the specific tomcat service. Here's the three files I touch to make it work and an example entry. My environment is Tomcat 4.1.29, mod_jk, and Apache 1.3.27. Hope this helps. Dan *FILE:mod_jk.conf #~~~ # domain.com Virtual Host Definition #~~~ VirtualHost 10.10.1.10 ServerName www.domain.com DocumentRoot /usr/www/domain.com ErrorLog logs/domain.com/error_log CustomLog logs/domain.com/access_log common ScriptAlias /cgi-bin/ /usr/www/domain.com/cgi-bin/ Directory /usr/www/domain.com/cgi-bin AllowOverride None Options None Order allow,deny Allow from all /Directory JkMount /servlet/* domain_worker JkMount /alpha/*.jsp domain_worker JkMount /*.jsp domain_worker /VirtualHost **FILE: workers.properties worker.list=ajp13, domain_worker worker.ajp13.port=8009 worker.ajp13.host=localhost worker.ajp13.type=ajp13 worker.ajp13.lbfactor=20 worker.ajp13.cachesize=20 worker.domain_worker.port=8010 worker.domain_worker.host=localhost worker.domain_worker.type=ajp13 worker.domain_worker.lbfactor=20 worker.domain_worker.cachesize=20 *FILE:server.xml Server... ... Service name=domain !-- Define a non-SSL HTTP/1.1 Connector on port 8081 -- Connector className=org.apache.catalina.connector.http.HttpConnector port=8081 minProcessors=5 maxProcessors=75 enableLookups=true redirectPort=8443 acceptCount=10 debug=0 connectionTimeout=6/ !-- Define an AJP 1.3 Connector on port 8010 -- Connector className=org.apache.ajp.tomcat4.Ajp13Connector port=8010 minProcessors=5 maxProcessors=75 acceptCount=10 debug=0/ !-- Define the top level container in our container hierarchy -- Engine name=domain defaultHost=www.domain.com debug=0 !-- Global logger unless overridden at lower levels -- Logger className=org.apache.catalina.logger.FileLogger prefix=catalina_domain_log. suffix=.txt timestamp=true/ !-- Because this Realm is here, an instance will be shared globally -- Realm className=org.apache.catalina.realm.MemoryRealm / !-- Define the default virtual host -- Host name=www.domain.com debug=0 appBase=webapps/domain.com unpackWARs=true autoDeploy=true Valve className=org.apache.catalina.valves.AccessLogValve directory=logs prefix=domain_access_log. suffix=.txt pattern=common/ Logger className=org.apache.catalina.logger.FileLogger directory=logs prefix=domain_log. suffix=.txt timestamp=true/ !-- domain Root Context -- Context path= docBase= debug=0/ /Host /Engine /Service /Server At 05:26 PM 6/18/2004, Jon Feauto wrote: I see this question posted quite often, but rarely answers abound. Is it because this is too complex a topic to explain in a user group? I would think it is fairly common, anyone have ideas? Jon --- Jon Feauto [EMAIL PROTECTED] wrote: Hello, I'm certain I am behind the curve on this one, but I've been looking around for several days now and haven't found the answers I need. I'm looking to setup multiple environments for Tomcat 4x on a single linux server. One for each developer and several others for different versions of test. From the mail list archives I've come to understand that CATALINA_BASE can be used to configure multiple instances. However, most examples I've seen use this in coordination with multiple server.xml files. I'm
Re: Multiple Tomcat Instances with Linux
Dan, That is essentially the situation I am trying to avoid. There are several applications within an instance of Tomcat that share resources from shared/lib, but those shared/lib resources should not be shared between instances. My goal is to have the separate instances represent independent environments. Jon --- Dan Barron [EMAIL PROTECTED] wrote: Jon, I have used the CATALINA_HOME/common/lib to share jar files among different Service instances. Not sure if that answers your question though. Dan At 10:54 AM 6/21/2004, you wrote: Dan, Thanks for the post, good ideas I'm going to try them. One thing I'm still not clear on. My application is configured to deploy shared modules (jar files) under CATALINA_HOME/shared/lib. If I create multiple instances, how do I configure the apps to share the correct version of CATALINA_HOME/shared/lib? Do you create a separate document root that contains a shared/lib for each Service entry in the server.xml configuration? Jon --- Dan Barron [EMAIL PROTECTED] wrote: Jon, I run multiple tomcat services on a Linux box with Apache for various development and distributions. The way I went about it is to setup multiple Service configurations within the server.xml file. Each service has it own port for connectivity and its own worker for mod_jk. I create a virtual host entry in mod_jk.conf file which mounts the assigned worker which in turn points to the specific tomcat service. Here's the three files I touch to make it work and an example entry. My environment is Tomcat 4.1.29, mod_jk, and Apache 1.3.27. Hope this helps. Dan *FILE:mod_jk.conf #~~~ # domain.com Virtual Host Definition #~~~ VirtualHost 10.10.1.10 ServerName www.domain.com DocumentRoot /usr/www/domain.com ErrorLog logs/domain.com/error_log CustomLog logs/domain.com/access_log common ScriptAlias /cgi-bin/ /usr/www/domain.com/cgi-bin/ Directory /usr/www/domain.com/cgi-bin AllowOverride None Options None Order allow,deny Allow from all /Directory JkMount /servlet/* domain_worker JkMount /alpha/*.jsp domain_worker JkMount /*.jsp domain_worker /VirtualHost **FILE: workers.properties worker.list=ajp13, domain_worker worker.ajp13.port=8009 worker.ajp13.host=localhost worker.ajp13.type=ajp13 worker.ajp13.lbfactor=20 worker.ajp13.cachesize=20 worker.domain_worker.port=8010 worker.domain_worker.host=localhost worker.domain_worker.type=ajp13 worker.domain_worker.lbfactor=20 worker.domain_worker.cachesize=20 *FILE:server.xml Server... ... Service name=domain !-- Define a non-SSL HTTP/1.1 Connector on port 8081 -- Connector className=org.apache.catalina.connector.http.HttpConnector port=8081 minProcessors=5 maxProcessors=75 enableLookups=true redirectPort=8443 acceptCount=10 debug=0 connectionTimeout=6/ !-- Define an AJP 1.3 Connector on port 8010 -- Connector className=org.apache.ajp.tomcat4.Ajp13Connector port=8010 minProcessors=5 maxProcessors=75 acceptCount=10 debug=0/ !-- Define the top level container in our container hierarchy -- Engine name=domain defaultHost=www.domain.com debug=0 !-- Global logger unless overridden at lower levels -- Logger className=org.apache.catalina.logger.FileLogger prefix=catalina_domain_log. suffix=.txt timestamp=true/ !-- Because this Realm is here, an instance will be shared globally -- Realm className=org.apache.catalina.realm.MemoryRealm / !-- Define the default virtual host -- Host name=www.domain.com debug=0 appBase=webapps/domain.com unpackWARs=true autoDeploy=true Valve className=org.apache.catalina.valves.AccessLogValve directory=logs prefix=domain_access_log. suffix=.txt pattern=common/ Logger className=org.apache.catalina.logger.FileLogger directory=logs prefix=domain_log. suffix=.txt timestamp=true/ !-- domain Root Context -- Context path= docBase= debug=0/ /Host /Engine /Service /Server At 05:26 PM 6/18/2004, Jon Feauto wrote: I see this question posted quite often, but rarely answers abound. Is it because this is too complex a
Multiple Tomcat Instances with Linux
Hello, I'm certain I am behind the curve on this one, but I've been looking around for several days now and haven't found the answers I need. I'm looking to setup multiple environments for Tomcat 4x on a single linux server. One for each developer and several others for different versions of test. From the mail list archives I've come to understand that CATALINA_BASE can be used to configure multiple instances. However, most examples I've seen use this in coordination with multiple server.xml files. I'm hoping there is a trick to this that I'm missing. I don't mind the extra configuration as long as that is the recommended approach. For an installation supporting a linux service, does the /etc/init.d/tomcat4 script need to be modified to set the CATALINA_BASE for each instance started? Do I need to use different port numbers to access those instances? Is the CATALINA_HOME/shared/lib actually shared across instances or can it be unique to an instance according to CATALINA_BASE? Is virtual hosting required to support this type of environment? Any help is appreciated. Thanks, Jon __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Multiple Tomcat Instances with Linux
I see this question posted quite often, but rarely answers abound. Is it because this is too complex a topic to explain in a user group? I would think it is fairly common, anyone have ideas? Jon --- Jon Feauto [EMAIL PROTECTED] wrote: Hello, I'm certain I am behind the curve on this one, but I've been looking around for several days now and haven't found the answers I need. I'm looking to setup multiple environments for Tomcat 4x on a single linux server. One for each developer and several others for different versions of test. From the mail list archives I've come to understand that CATALINA_BASE can be used to configure multiple instances. However, most examples I've seen use this in coordination with multiple server.xml files. I'm hoping there is a trick to this that I'm missing. I don't mind the extra configuration as long as that is the recommended approach. For an installation supporting a linux service, does the /etc/init.d/tomcat4 script need to be modified to set the CATALINA_BASE for each instance started? Do I need to use different port numbers to access those instances? Is the CATALINA_HOME/shared/lib actually shared across instances or can it be unique to an instance according to CATALINA_BASE? Is virtual hosting required to support this type of environment? Any help is appreciated. Thanks, Jon __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! Mail Address AutoComplete - You start. We finish. http://promotions.yahoo.com/new_mail - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Multiple Tomcat Instances with Linux
Jon, I run multiple tomcat services on a Linux box with Apache for various development and distributions. The way I went about it is to setup multiple Service configurations within the server.xml file. Each service has it own port for connectivity and its own worker for mod_jk. I create a virtual host entry in mod_jk.conf file which mounts the assigned worker which in turn points to the specific tomcat service. Here's the three files I touch to make it work and an example entry. My environment is Tomcat 4.1.29, mod_jk, and Apache 1.3.27. Hope this helps. Dan *FILE:mod_jk.conf #~~~ # domain.com Virtual Host Definition #~~~ VirtualHost 10.10.1.10 ServerName www.domain.com DocumentRoot /usr/www/domain.com ErrorLog logs/domain.com/error_log CustomLog logs/domain.com/access_log common ScriptAlias /cgi-bin/ /usr/www/domain.com/cgi-bin/ Directory /usr/www/domain.com/cgi-bin AllowOverride None Options None Order allow,deny Allow from all /Directory JkMount /servlet/* domain_worker JkMount /alpha/*.jsp domain_worker JkMount /*.jsp domain_worker /VirtualHost **FILE: workers.properties worker.list=ajp13, domain_worker worker.ajp13.port=8009 worker.ajp13.host=localhost worker.ajp13.type=ajp13 worker.ajp13.lbfactor=20 worker.ajp13.cachesize=20 worker.domain_worker.port=8010 worker.domain_worker.host=localhost worker.domain_worker.type=ajp13 worker.domain_worker.lbfactor=20 worker.domain_worker.cachesize=20 *FILE:server.xml Server... ... Service name=domain !-- Define a non-SSL HTTP/1.1 Connector on port 8081 -- Connector className=org.apache.catalina.connector.http.HttpConnector port=8081 minProcessors=5 maxProcessors=75 enableLookups=true redirectPort=8443 acceptCount=10 debug=0 connectionTimeout=6/ !-- Define an AJP 1.3 Connector on port 8010 -- Connector className=org.apache.ajp.tomcat4.Ajp13Connector port=8010 minProcessors=5 maxProcessors=75 acceptCount=10 debug=0/ !-- Define the top level container in our container hierarchy -- Engine name=domain defaultHost=www.domain.com debug=0 !-- Global logger unless overridden at lower levels -- Logger className=org.apache.catalina.logger.FileLogger prefix=catalina_domain_log. suffix=.txt timestamp=true/ !-- Because this Realm is here, an instance will be shared globally -- Realm className=org.apache.catalina.realm.MemoryRealm / !-- Define the default virtual host -- Host name=www.domain.com debug=0 appBase=webapps/domain.com unpackWARs=true autoDeploy=true Valve className=org.apache.catalina.valves.AccessLogValve directory=logs prefix=domain_access_log. suffix=.txt pattern=common/ Logger className=org.apache.catalina.logger.FileLogger directory=logs prefix=domain_log. suffix=.txt timestamp=true/ !-- domain Root Context -- Context path= docBase= debug=0/ /Host /Engine /Service /Server At 05:26 PM 6/18/2004, Jon Feauto wrote: I see this question posted quite often, but rarely answers abound. Is it because this is too complex a topic to explain in a user group? I would think it is fairly common, anyone have ideas? Jon --- Jon Feauto [EMAIL PROTECTED] wrote: Hello, I'm certain I am behind the curve on this one, but I've been looking around for several days now and haven't found the answers I need. I'm looking to setup multiple environments for Tomcat 4x on a single linux server. One for each developer and several others for different versions of test. From the mail list archives I've come to understand that CATALINA_BASE can be used to configure multiple instances. However, most examples I've seen use this in coordination with multiple server.xml files. I'm hoping there is a trick to this that I'm missing. I don't mind the extra configuration as long as that is the recommended approach. For an installation supporting a linux service, does the /etc/init.d/tomcat4 script need to be modified to set the CATALINA_BASE for each instance started? Do I need to use different port numbers to access those instances? Is the CATALINA_HOME/shared/lib actually shared across instances or can it be unique to an instance according to CATALINA_BASE? Is virtual hosting required to support this type of environment? Any help is appreciated. Thanks, Jon __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional
Apache 2, Tomcat 5, mod_jk2 with virtual hosts and multiple Tomcat instances
Hi All, I'm having problems integrating Apache 2.0.46, Tomcat 5.0.24 using connectors JK2 2.0.2 on linux for multiple Tomcat instances. I'm trying to run seperate instances of Tomcat for development environments that also correspond to different virtual hosts. I have managed to get the different instances of Tomcat working on there own, browsing to them using the relevant port numbers. If i then use mod_jk2 to connect to either instance seperately (without the other instance being configured), it all works ok, however when i try to run both (and configured) i get an Internal Server error for dev2, and the error in the Apache log file is: [Mon Jun 07 22:26:13 2004] [error] channelSocket.open() connect failed 127.0.0.1:9109 111 Connection refused [Mon Jun 07 22:26:13 2004] [error] ajp13.connect() failed ajp13:localhost:9109 [Mon Jun 07 22:26:13 2004] [error] ajp13.service() failed to connect endpoint errno=111 Connection refused [Mon Jun 07 22:26:13 2004] [error] ajp13.service() Error forwarding ajp13:localhost:9109 1 1 [Mon Jun 07 22:26:13 2004] [notice] ajp13.done() close endpoint ajp13:localhost:9109 error_state 1 [Mon Jun 07 22:26:13 2004] [error] lb.service() worker failed 12 for ajp13:localhost:9109 [Mon Jun 07 22:26:13 2004] [notice] lb.getWorker() All workers in error state, use the one with oldest error [Mon Jun 07 22:26:13 2004] [notice] lb.getWorker() We tried all possible workers 5 [Mon Jun 07 22:26:13 2004] [error] lb_worker.service() all workers in error or disabled state [Mon Jun 07 22:26:13 2004] [error] mod_jk.handler() Error connecting to tomcat 12 The development environments are dev2, dev3 etc and are different virtual hosts on server, server: Workers2.properties [logger.apache2] level=DEBUG [shm] file=/usr/local/apache/logs/shm.file size=1048576 # Example socket channel, override port and host. [channel.socket:localhost:8009] port=8009 host=127.0.0.1 # define the server worker [ajp13:localhost:8009] channel=channel.socket:localhost:8009 # Added for dev2 [channel.socket:localhost:9109] port=9109 host=127.0.0.1 group=dev2 # define the worker [ajp13:localhost:9109] channel=channel.socket:localhost:9109 group=dev2 # new worker [uri:dev2/*] group=dev2 The mod_jk-server.conf VirtualHost server ServerName server ServerAlias server.company.co.uk DocumentRoot /usr/local/tomcat/webapps/server ErrorLog logs/server-error_log TransferLog logs/server-access_log ScriptAlias /cgi-bin /usr/local/tomcat/webapps/server/cgi-bin location /*.jsp JkUriSet worker ajp13:localhost:8009 /location location /servlet/* JkUriSet worker ajp13:localhost:8009 /location location /manager/* JkUriSet worker ajp13:localhost:8009 /location location /*.do JkUriSet worker ajp13:localhost:8009 /location /VirtualHost The mod_jk-dev2.conf VirtualHost dev2 ServerName dev2 ServerAlias dev2.company.co.uk DocumentRoot /usr/local/home/dev2/BUILD/htdocs ErrorLog logs/dev2-error_log TransferLog logs/dev2-access_log ScriptAlias /cgi-bin /usr/local/home/dev2/BUILD/htdocs/cgi-bin Location /*.jsp JkUriSet group dev2 /Location Location /servlet/* JkUriSet group dev2 /Location Location /*.do JkUriSet group dev2 /Location /VirtualHost Any help would be appreciated as i have trawled the mail archives and googled and haven't come up with much to help solve the problem. Many thanks, John
Mod_jk2/unix socket/multiple Tomcat instances: Do I need more than one socket file?
I am attempting to set up on one box with two separate Tomcat instances, one for dev, and one for stage, all using Unix Sockets. In configuring this, I am wondering if I need to specify a separate socket file for each Tomcat instance, or can they share the same one? Is there a better performance out of either pattern? For reference, here is my workers2.properites file that I used to finally get what I want (two separate virtual host to not load-balance, using Unix Sockets). I would also love any suggestions on a better way to do this: [shm:] info=Scoreboard. Required for reconfiguration and status with multiprocess servers file=/usr/local/apache2/logs/jk2.shm size=100 debug=0 disabled=0 [channel.un:/usr/local/apache2/modules/jk2_dev.socket] group=devlbgroup [channel.un:/usr/local/apache2/modules/jk2_stage.socket] group=stagelbgroup [uri:192.168.1.152/*] channel=channel.un:/usr/local/apache2/modules/jk2_dev.socket group=devlbgroup [uri:192.168.1.153/*] channel=channel.un:/usr/local/apache2/modules/jk2_stage.socket group=stagelbgroup
Session sharing/load balancing multiple tomcat instances W/O Apache Web Server
Is this possible to do? I've configured load balancing with apache and that worked as desired, but since then I've determined that the apache server was unnecessary in my configuration. If it is possible, can you please provide a sample jk2.properties file, or at least step me in the right direction. _ Jeremy Nix Senior Application Developer Southwest Financial Services, LTD. (513) 621-6699 x1158 www.sfsltd.com
RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server
Hola, Is this possible to do? I've configured load balancing with apache and that worked as desired, but since then I've determined that the apache server was unnecessary in my configuration. If it is possible, can you please provide a sample jk2.properties file, or at least step me in the right direction. How did you determine Apache is not necessary when you're load-balancing with mod_jk2 which requires Apache? ;) Yoav Shapira This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server
I think (hope) he means one apache httpd instance load balancing to several tomcat instances. Your guess as to what he means is as good as mine tho! 8o) Adam. -Original Message- From: Shapira, Yoav [mailto:[EMAIL PROTECTED] Sent: 26 March 2004 16:36 To: Tomcat Users List Subject: RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server Hola, Is this possible to do? I've configured load balancing with apache and that worked as desired, but since then I've determined that the apache server was unnecessary in my configuration. If it is possible, can you please provide a sample jk2.properties file, or at least step me in the right direction. How did you determine Apache is not necessary when you're load-balancing with mod_jk2 which requires Apache? ;) Yoav Shapira This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ This email and any files attached is intended for the addressee only and may contain information that is confidential and/or legally privileged. Unauthorised use is strictly prohibited and may be unlawful. If you are not the addressee, you should not read, copy, disclose or otherwise use this message, including any attachment, except for the purpose of delivery to the addressee. We make every effort to keep our network free from viruses. However, you do need to verify this e-mail and any attachments to it to be virus free as we can take no responsibility for any computer virus which might be transferred by way of this e-mail. Scanning of this message and addition of this footer is performed by SurfControl E-mail Filter software in conjunction with virus detection software. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server
I've misphrased. What documentation I've come across indicates that Apache (or IIS) is necessary to configure tomcat as a cluster. It very well may be possible, which is why I'm asking the list. The main feature that I'm looking for in this configuration is the session failover ability. I have a hardware load-balancer, so load-balancing is not exactly what I was looking for...just the session sharing. _ Jeremy Nix Senior Application Developer Southwest Financial Services, LTD. (513) 621-6699 x1158 www.sfsltd.com -Original Message- From: Shapira, Yoav [mailto:[EMAIL PROTECTED] Sent: Friday, March 26, 2004 11:36 AM To: Tomcat Users List Subject: RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server Hola, Is this possible to do? I've configured load balancing with apache and that worked as desired, but since then I've determined that the apache server was unnecessary in my configuration. If it is possible, can you please provide a sample jk2.properties file, or at least step me in the right direction. How did you determine Apache is not necessary when you're load-balancing with mod_jk2 which requires Apache? ;) Yoav Shapira This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server
Hi, One alternative to balancing traffic without Apache, using only a tomcat cluster, is to use the balancer webapp that ships with tomcat 5. It's not a load balancer in the strict sense of the definition, as it doesn't replicate anything or allow for sticky sessions, but defacto it works. Yoav Shapira Millennium Research Informatics -Original Message- From: Adam Fowler [mailto:[EMAIL PROTECTED] Sent: Friday, March 26, 2004 11:40 AM To: 'Tomcat Users List' Subject: RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server I think (hope) he means one apache httpd instance load balancing to several tomcat instances. Your guess as to what he means is as good as mine tho! 8o) Adam. -Original Message- From: Shapira, Yoav [mailto:[EMAIL PROTECTED] Sent: 26 March 2004 16:36 To: Tomcat Users List Subject: RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server Hola, Is this possible to do? I've configured load balancing with apache and that worked as desired, but since then I've determined that the apache server was unnecessary in my configuration. If it is possible, can you please provide a sample jk2.properties file, or at least step me in the right direction. How did you determine Apache is not necessary when you're load-balancing with mod_jk2 which requires Apache? ;) Yoav Shapira This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ This email and any files attached is intended for the addressee only and may contain information that is confidential and/or legally privileged. Unauthorised use is strictly prohibited and may be unlawful. If you are not the addressee, you should not read, copy, disclose or otherwise use this message, including any attachment, except for the purpose of delivery to the addressee. We make every effort to keep our network free from viruses. However, you do need to verify this e-mail and any attachments to it to be virus free as we can take no responsibility for any computer virus which might be transferred by way of this e-mail. Scanning of this message and addition of this footer is performed by SurfControl E-mail Filter software in conjunction with virus detection software. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server
That doesn't exactly accomplish what I'm looking to do. Like I said, I need session replication amongst the tomcat instances...I guess theres always the idea of managing session data in some other medium (DB). _ Jeremy Nix Senior Application Developer Southwest Financial Services, LTD. (513) 621-6699 x1158 www.sfsltd.com -Original Message- From: Shapira, Yoav [mailto:[EMAIL PROTECTED] Sent: Friday, March 26, 2004 11:42 AM To: Tomcat Users List Subject: RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server Hi, One alternative to balancing traffic without Apache, using only a tomcat cluster, is to use the balancer webapp that ships with tomcat 5. It's not a load balancer in the strict sense of the definition, as it doesn't replicate anything or allow for sticky sessions, but defacto it works. Yoav Shapira Millennium Research Informatics -Original Message- From: Adam Fowler [mailto:[EMAIL PROTECTED] Sent: Friday, March 26, 2004 11:40 AM To: 'Tomcat Users List' Subject: RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server I think (hope) he means one apache httpd instance load balancing to several tomcat instances. Your guess as to what he means is as good as mine tho! 8o) Adam. -Original Message- From: Shapira, Yoav [mailto:[EMAIL PROTECTED] Sent: 26 March 2004 16:36 To: Tomcat Users List Subject: RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server Hola, Is this possible to do? I've configured load balancing with apache and that worked as desired, but since then I've determined that the apache server was unnecessary in my configuration. If it is possible, can you please provide a sample jk2.properties file, or at least step me in the right direction. How did you determine Apache is not necessary when you're load-balancing with mod_jk2 which requires Apache? ;) Yoav Shapira This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] _ This email and any files attached is intended for the addressee only and may contain information that is confidential and/or legally privileged. Unauthorised use is strictly prohibited and may be unlawful. If you are not the addressee, you should not read, copy, disclose or otherwise use this message, including any attachment, except for the purpose of delivery to the addressee. We make every effort to keep our network free from viruses. However, you do need to verify this e-mail and any attachments to it to be virus free as we can take no responsibility for any computer virus which might be transferred by way of this e-mail. Scanning of this message and addition of this footer is performed by SurfControl E-mail Filter software in conjunction with virus detection software. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server
That doesn't exactly accomplish what I'm looking to do. Like I said, I need session replication amongst the tomcat instances...I guess theres always the idea of managing session data in some other medium (DB). Coincidentally, I just got that working -- but it required a full day of writing code to get around bugs in PersistentValve (I'm going to describe this soon). So unless you want to hack Tomcat, I would suggest avoiding session replication via DB right now (with coding changes it does seem to work great). - tony - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
multiple tomcat instances cause user logout
I have installed 2 instances of tomcat on my machine. I've user 1 login to tomcat 1, when user 2 login to tomcat 2, it automatically logout user 1 in tomcat 1??? tomcat 4.0.6 on win 2000 Carlton Lo Pluris 550 Cochituate Road Framingham, MA 01701 Tel: (508) 663-1089 Fax: (508) 663-1060 mailto:[EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Session sharing/load balancing multiple tomcat instances W/O Apache Web Server
Jeremy Nix wrote: I've misphrased. What documentation I've come across indicates that Apache (or IIS) is necessary to configure tomcat as a cluster. It very well may be possible, which is why I'm asking the list. The main feature that I'm looking for in this configuration is the session failover ability. I have a hardware load-balancer, so load-balancing is not exactly what I was looking for...just the session sharing. Does your hardware load balancer support sticky sessions? If it does, you can use Tomcat's HTTP connector, and configure your balancer as if Tomcat were a web server (which it is, when you use that connector). If it doesn't I personally recommend getting one that does ;-) or using Apache + mod_jk / mod_jk2. Use the hardware balancer and 2 Apache for high availability. Other than that, there is in-memory or JDBC session clustering (uncomment two elements from your server.xml, and you are mostly done). That implies that objects stored in sessions need to be Serializable. Performance impact will depend on your webapp design, so YMMV. I only tried in-memory a few months ago, and performance dropped seriously, but it worked without problem. Most likely our webapp's fault. You may encounter issues with frames and similar constructs. See the docs. HTH, Antonio Fiol - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: multiple tomcat instances cause user logout
Carlton Lo wrote: I have installed 2 instances of tomcat on my machine. I've user 1 login to tomcat 1, when user 2 login to tomcat 2, it automatically logout user 1 in tomcat 1??? tomcat 4.0.6 on win 2000 Using the same working directory for both? --Avoid it. Other than that, no idea. Antonio Fiol - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: multiple tomcat instances cause user logout
They are installed int different directories ... -Original Message- From: Antonio Fiol Bonnín [mailto:[EMAIL PROTECTED] Sent: Friday, March 26, 2004 3:48 PM To: Tomcat Users List Subject: Re: multiple tomcat instances cause user logout Carlton Lo wrote: I have installed 2 instances of tomcat on my machine. I've user 1 login to tomcat 1, when user 2 login to tomcat 2, it automatically logout user 1 in tomcat 1??? tomcat 4.0.6 on win 2000 Using the same working directory for both? --Avoid it. Other than that, no idea. Antonio Fiol - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
How can I configure multiple tomcat instances in workers2.properties file (separate web apps)
Hi all,
I need to configure multiple tomcat instances in workers2.properties file
running completely separate web apps. No matter what I do it doesn't work.
Can I even do this? I specify multiple channel sockets but all requests go
to the first one only.
I appreciate the response. Here is my simple workers2.properties file
(APP_SERVER_IP is an entry in /etc/hosts file).
# In production uncomment it out
[logger.apache2]
level=DEBUG
[shm]
file=${serverRoot}/logs/shm.file
size=1048576
###
#
# jk status
#
###
[status:status]
info=Status group, displays runtime information
[uri:/jkstatus/*]
group=status:status
###
#
# Setup volts
#
###
[channel.socket:APP_SERVER_IP:8109]
[channel.socket:APP_SERVER_IP:8009]
_
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How can I configure multiple tomcat instances in workers2.properties file (separate web apps) (to developers of mod_jk2: please respond)
Hi all, It seems like mod_jk2 is a buggy connector. There is no way to set up more than one instance of tomcat. It can connect on any port other than 8009 but it is a first-come first-served basis (whichever port comes first). I need a response from mod_jk2 developers themselves. Should I go back to mod_jk or there is a way of doing this simple thing??? Thanks, Misak _ This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: How can I configure multiple tomcat instances in workers2.properties file (separate web apps) (to developers of mod_jk2: please respond)
Boulatian, Misak wrote: Hi all, It seems like mod_jk2 is a buggy connector. There is no way to set up more than one instance of tomcat. It can connect on any port other than 8009 but it is a first-come first-served basis (whichever port comes first). I need a response from mod_jk2 developers themselves. Should I go back to mod_jk or there is a way of doing this simple thing??? take it easy man :) small question : what about using different virtual hosts in your apache config, then from these contexts , using different config files for mod_jk which will be very simple (you have already validated one of your tomcat instances) my 2 cents Jerome - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: How can I configure multiple tomcat instances in workers2.properties file (separate web apps) (to developers of mod_jk2: please respond)
take it easy man :) small question : what about using different virtual hosts in your apache config, then from these contexts , using different config files for mod_jk which will be very simple (you have already validated one of your tomcat instances) my 2 cents Jerome Hi Jerome, Thanks for trying to help me. I have been working on this for several days and I was too upset. Can you please tell me how can I specify different workers2.properties file for each instance since workers2.properties file must be in apache/conf? In the site http://jakarta.apache.org/tomcat/tomcat-4.1-doc/jk2/ there is nothing about this. Thanks, Misak _ This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Multiple Tomcat instances for virtual hosts
Hi, I have Apache 1.3 and Tomcat 4.1.8 on a Red Hat 9 machine. Apache serves several virutal hosts. We have one Tomcat instance running with several web contexts, one context for each virtual host. Now I would like to change this to have one Tomcat instance for each virtual host (this is necessary because Tomcat sometimes crashes, and I don't want all virtual hosts to be down then). I read a book about Tomcat and searched the Web, but could not find out how to do this. What I assume is: In Apache's httpd.conf I have something (after the import of mod_jk): NameVirtualHost 200.200.200.200 (or whatever) VirtualHost 200.200.200.200 ServerName www.xxx.com DocumentRoot /tomcat1/webapps/xxx JkMount /servlet/* worker1 JkMount /*.jsp worker1 JkMount /*.do worker1 /VirtualHost VirtualHost 200.200.200.200 ServerName www.yyy.com DocumentRoot /tomcat2/webapps/yyy JkMount /servlet/* worker2 JkMount /*.jsp worker2 JkMount /*.do worker2 /VirtualHost Then I will install Tomcat two times, in /tomcat1 and /tomcat2. The server.xml of each Tomcat contains different ports (for shutdown and for the connector for ajp13). The workers.properties should look like: worker.list=worker1,worker2 ... worker.worker1.port=8009 worker.worker1.host=localhost worker.worker1.type=ajp13 ... worker.worker1.port=8010 worker.worker1.host=localhost worker.worker1.type=ajp13 Is this all correct? Should that work? Thomas - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Multiple Tomcat instances for virtual hosts
This doesn't really answer your question, but we've found Tomcat to be quite robust. You may also want to find out (if you don't already know) what's bringing the server down. -d --- Thomas Eichberger [EMAIL PROTECTED] wrote: Hi, I have Apache 1.3 and Tomcat 4.1.8 on a Red Hat 9 machine. Apache serves several virutal hosts. We have one Tomcat instance running with several web contexts, one context for each virtual host. Now I would like to change this to have one Tomcat instance for each virtual host (this is necessary because Tomcat sometimes crashes, and I don't want all virtual hosts to be down then). I read a book about Tomcat and searched the Web, but could not find out how to do this. What I assume is: In Apache's httpd.conf I have something (after the import of mod_jk): NameVirtualHost 200.200.200.200 (or whatever) VirtualHost 200.200.200.200 ServerName www.xxx.com DocumentRoot /tomcat1/webapps/xxx JkMount /servlet/* worker1 JkMount /*.jsp worker1 JkMount /*.do worker1 /VirtualHost VirtualHost 200.200.200.200 ServerName www.yyy.com DocumentRoot /tomcat2/webapps/yyy JkMount /servlet/* worker2 JkMount /*.jsp worker2 JkMount /*.do worker2 /VirtualHost Then I will install Tomcat two times, in /tomcat1 and /tomcat2. The server.xml of each Tomcat contains different ports (for shutdown and for the connector for ajp13). The workers.properties should look like: worker.list=worker1,worker2 ... worker.worker1.port=8009 worker.worker1.host=localhost worker.worker1.type=ajp13 ... worker.worker1.port=8010 worker.worker1.host=localhost worker.worker1.type=ajp13 Is this all correct? Should that work? Thomas - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Multiple Tomcat instances for virtual hosts
Your plan should work pretty well. I do something similar myself. The major difference is that I use one installation of Tomcat for all the sites. I have a script to start tomcat for each site, that points CATALINA_HOME to the shared Tomcat binaries, and CATALINA_BASE to the conf/, logs/, temp/, work/, and webapps/ directories for the site: file /home/site1/tomcat/catalina: #!/bin/sh CATALINA_BASE = /home/site1/tomcat CATALINA_HOME = /usr/share/tomcat4 (or whatever) CATALINA_OPTS = -server (maybe others) export CATALINA_BASE CATALINA_HOME CATALINA_OPTS $CATALINA_BASE/bin/catalina.sh $* I can do ./catalina start, ./catalina stop,etc to control each site. It works pretty well, especially if you're developing one site while others are in production. Two things to watch for: 1) You are correct that you have to use different ports for each server.xml file. I declared that site one could have ports between 8100-8199, site 2 between 8200-8299, etc. Each project can use whatever they want in their range. 2) Since these Tomcat instances listen on ports above 1024, they don't need to be started by the root user. If they did, I'd be very wary of putting the server.xml file (and other config files and scripts) where the user could modify them. Also, your system boot procedures need to take some steps to start them using the correct username. 3) I use Apache as a front end for all these Tomcat instances, using a proxy instead of JK or JK2. In each virtual host, there's something like this: ProxyPass /examples/ http://localhost:8181/examples/ ProxyPassReverse /examples/ http://localhost:8181/examples/ There are two nice things about this: Apache logs everything, making it easier to do usage reports. And, all the connections to Tomcat come from Apache and localhost, so I can block outside connections to all ports except the ones Apache listens to. However, it's still possible for user A to change his server.xml file to listen to a port that's being sent traffic for user B. For my purposes, that's not an issue; for others, it may be. Good luck! ...Bob Langford... At 02:12 PM 9/6/2003, you wrote: Hi, I have Apache 1.3 and Tomcat 4.1.8 on a Red Hat 9 machine. Apache serves several virutal hosts. We have one Tomcat instance running with several web contexts, one context for each virtual host. Now I would like to change this to have one Tomcat instance for each virtual host (this is necessary because Tomcat sometimes crashes, and I don't want all virtual hosts to be down then). I read a book about Tomcat and searched the Web, but could not find out how to do this. What I assume is: In Apache's httpd.conf I have something (after the import of mod_jk): NameVirtualHost 200.200.200.200 (or whatever) VirtualHost 200.200.200.200 ServerName www.xxx.com DocumentRoot /tomcat1/webapps/xxx JkMount /servlet/* worker1 JkMount /*.jsp worker1 JkMount /*.do worker1 /VirtualHost VirtualHost 200.200.200.200 ServerName www.yyy.com DocumentRoot /tomcat2/webapps/yyy JkMount /servlet/* worker2 JkMount /*.jsp worker2 JkMount /*.do worker2 /VirtualHost Then I will install Tomcat two times, in /tomcat1 and /tomcat2. The server.xml of each Tomcat contains different ports (for shutdown and for the connector for ajp13). The workers.properties should look like: worker.list=worker1,worker2 ... worker.worker1.port=8009 worker.worker1.host=localhost worker.worker1.type=ajp13 ... worker.worker1.port=8010 worker.worker1.host=localhost worker.worker1.type=ajp13 Is this all correct? Should that work? Thomas - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Bob Langford Silicon Masters Consulting, Inc.8207 Stone River Court, Richmond, VA 23235 phone: 804-674-1253 fax: 804-745-6650 http://www.silicon-masters.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Multiple Tomcat instances for virtual hosts
I really like the idea of setting up multiple instances of Tomcat per virtual site - i have 2 questions: 1) How does it affect memory usage, i.e. if we are on a server with X ammount of ram and there are 20 sites, does each site end up needing a minimum of ~21 MB RAM for tomcat so we have a basic need of 420MB ram being used just to keep tomcat up / site? 2) If one site gets busier then will it slow down the other sites more so than using mod_jk / mod_webapp? sai On Sat, 06 Sep 2003 21:05:38 -0400, Bob Langford wrote Your plan should work pretty well. I do something similar myself. The major difference is that I use one installation of Tomcat for all the sites. I have a script to start tomcat for each site, that points CATALINA_HOME to the shared Tomcat binaries, and CATALINA_BASE to the conf/, logs/, temp/, work/, and webapps/ directories for the site: file /home/site1/tomcat/catalina: #!/bin/sh CATALINA_BASE = /home/site1/tomcat CATALINA_HOME = /usr/share/tomcat4 (or whatever) CATALINA_OPTS = -server (maybe others) export CATALINA_BASE CATALINA_HOME CATALINA_OPTS $CATALINA_BASE/bin/catalina.sh $* I can do ./catalina start, ./catalina stop,etc to control each site. It works pretty well, especially if you're developing one site while others are in production. Two things to watch for: 1) You are correct that you have to use different ports for each server.xml file. I declared that site one could have ports between 8100-8199, site 2 between 8200-8299, etc. Each project can use whatever they want in their range. 2) Since these Tomcat instances listen on ports above 1024, they don't need to be started by the root user. If they did, I'd be very wary of putting the server.xml file (and other config files and scripts) where the user could modify them. Also, your system boot procedures need to take some steps to start them using the correct username. 3) I use Apache as a front end for all these Tomcat instances, using a proxy instead of JK or JK2. In each virtual host, there's something like this: ProxyPass /examples/ http://localhost:8181/examples/ ProxyPassReverse /examples/ http://localhost:8181/examples/ There are two nice things about this: Apache logs everything, making it easier to do usage reports. And, all the connections to Tomcat come from Apache and localhost, so I can block outside connections to all ports except the ones Apache listens to. However, it's still possible for user A to change his server.xml file to listen to a port that's being sent traffic for user B. For my purposes, that's not an issue; for others, it may be. Good luck! ...Bob Langford... At 02:12 PM 9/6/2003, you wrote: Hi, I have Apache 1.3 and Tomcat 4.1.8 on a Red Hat 9 machine. Apache serves several virutal hosts. We have one Tomcat instance running with several web contexts, one context for each virtual host. Now I would like to change this to have one Tomcat instance for each virtual host (this is necessary because Tomcat sometimes crashes, and I don't want all virtual hosts to be down then). I read a book about Tomcat and searched the Web, but could not find out how to do this. What I assume is: In Apache's httpd.conf I have something (after the import of mod_jk): NameVirtualHost 200.200.200.200 (or whatever) VirtualHost 200.200.200.200 ServerName www.xxx.com DocumentRoot /tomcat1/webapps/xxx JkMount /servlet/* worker1 JkMount /*.jsp worker1 JkMount /*.do worker1 /VirtualHost VirtualHost 200.200.200.200 ServerName www.yyy.com DocumentRoot /tomcat2/webapps/yyy JkMount /servlet/* worker2 JkMount /*.jsp worker2 JkMount /*.do worker2 /VirtualHost Then I will install Tomcat two times, in /tomcat1 and /tomcat2. The server.xml of each Tomcat contains different ports (for shutdown and for the connector for ajp13). The workers.properties should look like: worker.list=worker1,worker2 ... worker.worker1.port=8009 worker.worker1.host=localhost worker.worker1.type=ajp13 ... worker.worker1.port=8010 worker.worker1.host=localhost worker.worker1.type=ajp13 Is this all correct? Should that work? Thomas - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Bob Langford Silicon Masters Consulting, Inc.8207 Stone River Court, Richmond, VA 23235 phone: 804-674-1253 fax: 804-745-6650 http://www.silicon-masters.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Open WebMail Project (http://openwebmail.org) - To unsubscribe, e-mail: [EMAIL PROTECTED] For
Connecting Multiple Tomcat instances with Apache (mod_jk2)
Hello,
I'm trying to connect by the jk2 connector, several Tomcat v4.1.18 instances
with one Apache v2.0. We have Suse 2.4.19 as O.S. The problem arise when we
connect several instances of Tomcat with Apache, note that we have changed
the CATALINA_BASE variable to enable multiple tomcat instances. I don't know
exactly what is happening, but it's looks like there are some problems
defining multiple workers.
Next I attach several configuration files both tomcat, as Apache and the
mod_jk2 connector.
This is a fragment of the server.xml file in which you define the connector.
/entornos/pds-pi/conf/server.xml
-
Connector className=org.apache.coyote.tomcat4.CoyoteConnector
port=41880 minProcessors=5 maxProcessors=75
enableLookups=true redirectPort=41843
acceptCount=100 debug=0 connectionTimeout=2
useURIValidationHack=false disableUploadTimeout=true /
-
We have installed two Tomcats, one in /usr/local/jakarta-tomcat-4.1.18 owned
by root (which is normally stopped), and another in /usr/local/tomcat-4.1.18
owned by a specific user tomcat4118. We accomplished this without many
problems, however the connector don't work with these tomcat instances. We
need to have different Tomcat instances for not interfering distinct develop
equipments when we stop Tomcat.
/entornos/pds-pi/conf/jk2.properties
-
## THIS FILE MAY BE OVERRIDEN AT RUNTIME. MAKE SURE TOMCAT IS STOPED
## WHEN YOU EDIT THE FILE.
## COMMENTS WILL BE _LOST_
## DOCUMENTATION OF THE FORMAT IN JkMain javadoc.
# Set the desired handler list
# handler.list=apr,request,channelJni
#
# Override the default port for the socketChannel
channelSocket.port=41809
# channelSocket.port=8019
# Default:
# channelUnix.file=${jkHome}/work/jk2.socket
# Just to check if the the config is working
# shm.file=${jkHome}/work/jk2.shm
# In order to enable jni use any channelJni directive
# channelJni.disabled = 0
# And one of the following directives:
# apr.jniModeSo=/opt/apache2/modules/mod_jk2.so
# If set to inprocess the mod_jk2 will Register natives itself
# This will enable the starting of the Tomcat from mod_jk2
# apr.jniModeSo=inprocess
-
/usr/local/apache/conf/workers2.properties
-
# workers2.properties
worker.list=worker1,worker2
worker.worker1.type=ajp13
worker.worker1.host=localhost
worker.worker1.port=8009
worker.worker2.type=ajp13
worker.worker2.host=localhost
worker.worker2.port=41809
[logger]
level=DEBUG
file=/usr/local/apache/logs/jk2.log
[config]
file=/usr/local/apache/conf/workers2.properties
debug=0
debugEnv=0
# Shared memory handling. Needs to be set.
[shm]
file=/usr/local/apache/logs/shm.file
size=1048576
debug=0
disabled=0
[channel.socket.local_8009:localhost:8009]
port=8009
host=127.0.0.1
debug=0
[channel.socket.local_41809:localhost:41809]
port=41809
host=127.0.0.1
debug=0
# Example socket channel, explicitly set port and host.
# [channel.socket:localhost:8009]
# port=8009
# host=127.0.0.1
# Example UNIX domain socket
# [channel.un:/usr/local/tomcat/work/jk2.socket]
# tomcatId=localhost:8009
# debug=0
# define the worker
[ajp13:localhost:8009]
#channel=channel.un:/usr/local/pds/tomcat/work/jk2.socket
# To use the TCP/IP socket instead, just comment out the above
# line, and uncomment the one below
#channel=channel.socket:localhost:8009
channel=channel.socket.local_8009:localhost:8009
# define the worker
[ajp13:localhost:41809]
#channel=channel.un:/usr/local/pds/tomcat/work/jk2.socket
# To use the TCP/IP socket instead, just comment out the above
# line, and uncomment the one below
#channel=channel.socket:localhost:41809
channel=channel.socket.local_41809:localhost:41809
# Announce a status worker
[status:status]
# Uri mapping
[uri:/examples/*]
worker1=ajp13:localhost:8009
# worker=ajp13:/usr/local/pds/tomcat/work/jk2.socket
# Uri mapping
[uri:/pds-pi/*]
worker2=ajp13:localhost:41809
#worker=ajp13:localhost:8009
# worker=ajp13:/usr/local/pds/tomcat/work/jk2.socket
# Uri mapping
[uri:/pds-pi2/*]
worker1=ajp13:localhost:8009
# worker=ajp13:/usr/local/pds/tomcat/work/jk2.socket
# Uri mapping
[uri:/pds-mc/*]
worker1=ajp13:localhost:8009
# worker=ajp13:/usr/local/pds/tomcat/work/jk2.socket
# Uri mapping
[uri:/pdsinet/*]
worker1=ajp13:localhost:8009
# worker=ajp13:/usr/local/pds/tomcat/work/jk2.socket
[uri:/status/*]
worker=status:status
RE: Multiple Tomcat instances
- Each port that is in use must be unique across the instances of tomcat. So you have to change all ports that are used. (So the first task, is to throw out every thing you don't need) To be more precise each combination of port and IP must be unique. It's possible to setup differenzt IP's on one maschine and use the same port on each of them) - What's the problem ? In my installation startup.sh etc. are readable and executable by anybody. If you don't like that, you can make local copies that are owned by the owner of the site. -Original Message- From: Christian Hauser [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 05, 2003 3:57 PM To: Tomcat Users List Subject: Multiple Tomcat instances I'm new to Tomcat administration and would like to switch from ServletExec to Tomcat 4.1. However, I have some difficulty understanding how to set up different Tomcat instances. I'd like to have different Tomcat instances for each developer (to test web applications) and for each application. Tomcat is installed into /usr/local/tomcat-4.1.24 (CATALINA_HOME). Every developer and web application should now have its own instance somewhere (CATALINA_BASE). For example: /home/chauser/tomcat in my case (CATALINA_BASE). This directory contains some folders: logs, conf, work, webapps, bin. Which port to change? In the conf directory I'd like to put a tailored versions of web.xml and server.xml, but I don't know which Port I have to change. How to deal with user/root problems? When I have a start, stop or restart script in CATALINA_BASE/bin, I cannot startup or shutdown tomcat, because the startup.sh and shutdown.sh (in CATALINA_HOME/bin) belong to root. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Multiple Tomcat instances
Angus Mezick wrote: Can the developers have a tomcat instance running inside of eclipse on their desktops? This will allow them do use the debugger. --Angus I haven't yet thought about that. I guess it should be possible, in fact it would be great if that works. Do you know how simple that would be to set up? Christian - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Multiple Tomcat instances
Can the developers have a tomcat instance running inside of eclipse on their desktops? This will allow them do use the debugger. --Angus -Original Message- From: Christian Hauser [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 05, 2003 9:57 AM To: Tomcat Users List Subject: Multiple Tomcat instances Hello Tomcat cracks I'm new to Tomcat administration and would like to switch from ServletExec to Tomcat 4.1. However, I have some difficulty understanding how to set up different Tomcat instances. I'd like to have different Tomcat instances for each developer (to test web applications) and for each application. Tomcat is installed into /usr/local/tomcat-4.1.24 (CATALINA_HOME). Every developer and web application should now have its own instance somewhere (CATALINA_BASE). For example: /home/chauser/tomcat in my case (CATALINA_BASE). This directory contains some folders: logs, conf, work, webapps, bin. Which port to change? In the conf directory I'd like to put a tailored versions of web.xml and server.xml, but I don't know which Port I have to change. How to deal with user/root problems? When I have a start, stop or restart script in CATALINA_BASE/bin, I cannot startup or shutdown tomcat, because the startup.sh and shutdown.sh (in CATALINA_HOME/bin) belong to root. Is there a good Tomcat 4.1 administration reference available online (apart from the Tomcat documentation)? In about 2-3 weeks I'll get the book Tomcat: The Definitive Guide (O'Reilly), however, I'd like to progress until then. Thank you in advance for all your help. Christian - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Multiple Tomcat instances
Hello Tomcat cracks I'm new to Tomcat administration and would like to switch from ServletExec to Tomcat 4.1. However, I have some difficulty understanding how to set up different Tomcat instances. I'd like to have different Tomcat instances for each developer (to test web applications) and for each application. Tomcat is installed into /usr/local/tomcat-4.1.24 (CATALINA_HOME). Every developer and web application should now have its own instance somewhere (CATALINA_BASE). For example: /home/chauser/tomcat in my case (CATALINA_BASE). This directory contains some folders: logs, conf, work, webapps, bin. Which port to change? In the conf directory I'd like to put a tailored versions of web.xml and server.xml, but I don't know which Port I have to change. How to deal with user/root problems? When I have a start, stop or restart script in CATALINA_BASE/bin, I cannot startup or shutdown tomcat, because the startup.sh and shutdown.sh (in CATALINA_HOME/bin) belong to root. Is there a good Tomcat 4.1 administration reference available online (apart from the Tomcat documentation)? In about 2-3 weeks I'll get the book Tomcat: The Definitive Guide (O'Reilly), however, I'd like to progress until then. Thank you in advance for all your help. Christian - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Multiple Tomcat Instances
Can anyone point me to how to get this type of setup. I want to have multiple instance of tomcat running on the same machine under different ports, say 80, 8080, . Would I achieve this if I setup an env variable called CATALINA_BASE as described in the RUNNING.txt file ? I have only one server box and want to have a production, development, and experiment capability. Finally, how can I run 2 different release of Tomcat ? Say, I want to run 4.1.24 and 5 on the same machine. -- Dwight Hugget - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Multiple Tomcat Instances
Hello dwightHugget, Tuesday, April 1, 2003, 11:43:12 PM, you wrote: d Can anyone point me to how to get this type of setup. d I want to have multiple instance of tomcat running on the same machine under d different ports, say 80, 8080, . d Would I achieve this if I setup an env variable called CATALINA_BASE as d described in the RUNNING.txt file ? d I have only one server box and want to have a production, development, and d experiment capability. d Finally, how can I run 2 different release of Tomcat ? d Say, I want to run 4.1.24 and 5 on the same machine. I think you could just add connectors on other ports in your server.xml file. I didn't try to run Tomcat 5 with tomcat 4, but I had Tomcat 3.3 and Tomcat 4.0.3 running this way. I've just configured instances so that they used different TCP ports. -- Best regards, Sergesmailto:[EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
modjk and multiple tomcat instances
Hi all, I'm using modjk2's isapi redirector (isapi_redirector2.dll) to redirect webapp requests on my IIS server to tomcat. Is it possible to make this single redirector redirect requests to different instances of tomcat (depending on uri)? For example, a request to IIS for /webapp1/ should go to localhost:8080 and a request for /webapp2/ should go to localhost:8081. I'm on Windowz, so if this is possible, what would my registry entries look like (ie: serverRoot key), and what would my workers2.properties look like? Thanks Ryan Courtnage - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
multiple tomcat instances...
Hi, I am running multiple tomcat instances with load balancing worker on solaris 8. How would you know, when one of the tomcat instances crashes other than doing ps -ef|grep tomcat or prstat quite often. Is there any automatic process to find that one of the tomcat process crashed. (I am running tomcat4.1.12 and apache2.0.39 on solaris 8 using jdk1.3.1). thanks -Raj
Re: multiple tomcat instances...
CREATE U'R OWN SHELL SCRIPTS TO CHECK THE STATUS OF TOMCAT IF ANY ONE THEM FAIL IT WILL AUTOMATICALY MAIL U REGARDS SONAM SINGH [EMAIL PROTECTED] --- Raj Mettai [EMAIL PROTECTED] wrote: Hi, I am running multiple tomcat instances with load balancing worker on solaris 8. How would you know, when one of the tomcat instances crashes other than doing ps -ef|grep tomcat or prstat quite often. Is there any automatic process to find that one of the tomcat process crashed. (I am running tomcat4.1.12 and apache2.0.39 on solaris 8 using jdk1.3.1). thanks -Raj __ Do you Yahoo!? Faith Hill - Exclusive Performances, Videos More http://faith.yahoo.com -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Running multiple tomcat instances ?????
On Mon, Sep 23, 2002 at 05:31:45PM +0200, Ralph Einfeldt wrote: We install different versions of tomcat like this: /usr/local/java/tomcat-4.0.3 /usr/local/java/tomcat-4.1.10 For each site we have something like this: /www/online/site Could you tell me how many instances do you have and how strong is your machine (CPU's, RAM)? Richard. -- First they ignore you. Then they laugh at you. Then they fight you. Then you win. - Mohandas Gandhi. -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Running multiple tomcat instances ?????
I have 13, soon to be 16, instances of Tomcat 3.1 running with apache 1.3.26. The machine is a dual 1.2 GHz system with 1GB RAM and 72GB of RAID-5 disk at 10,000RPM. Average load for some fairly intensive processing and traffic is about 45%. John -Original Message- From: Ryszard Lach [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 25, 2002 3:37 PM To: Tomcat Users List Subject: Re: Running multiple tomcat instances ? On Mon, Sep 23, 2002 at 05:31:45PM +0200, Ralph Einfeldt wrote: We install different versions of tomcat like this: /usr/local/java/tomcat-4.0.3 /usr/local/java/tomcat-4.1.10 For each site we have something like this: /www/online/site Could you tell me how many instances do you have and how strong is your machine (CPU's, RAM)? Richard. -- First they ignore you. Then they laugh at you. Then they fight you. Then you win. - Mohandas Gandhi. -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
AW: Running multiple tomcat instances ?????
We don't have tomcat in development or production. Our development and live servers are still using jserv + gnujsp. So I can't provide any tomcat numbers. That's the layout we used to do a functional test with tomcat to see if our application also runs under tomcat. We have done no load tests with tomcat. -Ursprngliche Nachricht- Von: Ryszard Lach [mailto:[EMAIL PROTECTED]] Gesendet: Mittwoch, 25. September 2002 21:37 An: Tomcat Users List Betreff: Re: Running multiple tomcat instances ? Could you tell me how many instances do you have and how strong is your machine (CPU's, RAM)? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Running multiple tomcat instances ?????
Hi Thanks for that - my sysadmins told me i couldn't have more than 80 characters of process name. My previous post was wrong, and that version of ps is much more useful. Anthony. -Original Message- From: Raj Mettai [SMTP:[EMAIL PROTECTED]] Sent: 23 September 2002 21:49 To: [EMAIL PROTECTED] Subject: RE: Running multiple tomcat instances ? Thanks John, I will read the doc and try to get that code working, meanwhile, I have a found att version of ps under /usr/ucb/ps (solaris) which will give you a whole lot of information about the processes... example: # /usr/ucb/ps -auxwww |grep tomcat root 5629 0.0 5.65760827824 ?S Sep 20 0:27 /usr/java/bin/../bin/sparc/native_threads/java -Djava.endorsed.dirs=/opt/tomcat2/bin:/opt/tomcat2/common/lib -classpath /usr/java/lib/tools.jar:/opt/tomcat2/bin/bootstrap.jar -Dcatalina.base=/opt/tomcat2 -Dcatalina.home=/opt/tomcat2 -Djava.io.tmpdir=/opt/tomcat2/temp org.apache.catalina.startup.Bootstrap start -Raj ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ** -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Running multiple tomcat instances ?????
Anthony Another parameter you might want to try is 'f' if it works for your ps it will show how the processes are related to other processes - ie child processes siblings etc /usr/ucb/ps -auxwwwf David Anthony Milbourne wrote: Hi Thanks for that - my sysadmins told me i couldn't have more than 80 characters of process name. My previous post was wrong, and that version of ps is much more useful. Anthony. -Original Message- From: Raj Mettai [SMTP:[EMAIL PROTECTED]] Sent: 23 September 2002 21:49 To: [EMAIL PROTECTED] Subject: RE: Running multiple tomcat instances ? Thanks John, I will read the doc and try to get that code working, meanwhile, I have a found att version of ps under /usr/ucb/ps (solaris) which will give you a whole lot of information about the processes... example: # /usr/ucb/ps -auxwww |grep tomcat root 5629 0.0 5.65760827824 ?S Sep 20 0:27 /usr/java/bin/../bin/sparc/native_threads/java -Djava.endorsed.dirs=/opt/tomcat2/bin:/opt/tomcat2/common/lib -classpath /usr/java/lib/tools.jar:/opt/tomcat2/bin/bootstrap.jar -Dcatalina.base=/opt/tomcat2 -Dcatalina.home=/opt/tomcat2 -Djava.io.tmpdir=/opt/tomcat2/temp org.apache.catalina.startup.Bootstrap start -Raj ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ** -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Running multiple tomcat instances ?????
If that script works, then great.
A less elegant way to do it would be to utilize pgrep. Do a man on it
(not sure what platform you are running on). You can pgrep for the
earliest PID that was run with a number of options. I use it for a Jserv
installation and it works quite nice.
I have not tested it with Tomcat, though.
Good luck,
Ben Ricker
Wellinx, Inc.
On Mon, 2002-09-23 at 15:17, Raj Mettai wrote:
Hi John,
I have compiled the code and copied to $CATALINA_HOME$/bin
then added the following snippet into server.xml
!-- Define the Tomcat Stand-Alone Service --
Service name=Tomcat-Standalone
Listener className=PidLifeCycle /
when I start the tomcat, I am not seeing any tomcat.pid and I am getting
the following error in catalina.out
ERROR reading /opt/tomcat1/conf/server.xml
At Line 28 /Server/Service/Listener/ className=PidLifeCycle
Catalina.start: java.lang.ClassNotFoundException: PidLifeCycle
java.lang.ClassNotFoundException: PidLifeCycle
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:1127)
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:992)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at
org.apache.catalina.util.xml.ObjectCreate.start(XmlMapper.java:616)
at
org.apache.catalina.util.xml.XmlMapper.matchStart(XmlMapper.java:412)
at
org.apache.catalina.util.xml.XmlMapper.startElement(XmlMapper.java:91)
at
org.xml.sax.helpers.XMLReaderAdapter.startElement(XMLReaderAdapter.java:329)
at
org.apache.xerces.parsers.SAXParser.startElement(SAXParser.java:1376)
at
org.apache.xerces.validators.common.XMLValidator.callStartElement(XMLValidator.java:1284)
at
org.apache.xerces.framework.XMLDocumentScanner.scanElement(XMLDocumentScanner.java:1806)
at
org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:1182)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
at
org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098)
at
org.xml.sax.helpers.XMLReaderAdapter.parse(XMLReaderAdapter.java:223)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:362)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:301)
at
org.apache.catalina.util.xml.XmlMapper.readXml(XmlMapper.java:228)
at org.apache.catalina.startup.Catalina.start(Catalina.java:725)
at
org.apache.catalina.startup.Catalina.execute(Catalina.java:681)
at
org.apache.catalina.startup.Catalina.process(Catalina.java:179)
at java.lang.reflect.Method.invoke(Native Method)
at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243)
thanks
-Raj
[EMAIL PROTECTED] 09/23/02 12:50PM
Well, in that case, I will include here the content of a message posted
by
Tim Funk on 6/13/2002, which has his solution for this, which I find
pretty
neat. Hopefully Tim doesn't mind, and I should add that this would
break
portability, most notably on Windows machines.
On 6/13/2002, Tim Funk wrote:
For what its worth - I created (and use) a LifecycleListener that runs
on startup which logs the process ID into a file called tomcat.pid.
Which is created by a shell script called writepid.sh. Below is all the
code to get this to work. This code also assumes your current working
directory is $CATALINA_HOME.
--Begin code
import org.apache.catalina.LifecycleEvent;
/**
* A helper for getting the PID of java so shutting down tomcat is MUCH
* easier.
*/
public class PidLifeCycle implements
org.apache.catalina.LifecycleListener {
public void lifecycleEvent(LifecycleEvent event) {
if (start.equals(event.getType())) {
try {
Runtime.getRuntime().exec(/bin/sh bin/writepid.sh);
} catch(Throwable e) {
e.printStackTrace();
}
}
}
}
--End Code
The code above will launch the following shell script. Should be in the
bin/ directory of your tomcat installation.
--Begin Shell script
echo $PPID logs/tomcat.pid
--End Shell script
Then add the following into server.xml
--Begin server.xml snippet
Listener className=PidLifeCycle /
--End server.xml snippet
-Tim
== end ===
Thanks, Tim!
John
-Original Message-
From: Anthony Milbourne [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 23, 2002 12:45 PM
To: 'Tomcat Users List'
Subject: RE: Running multiple tomcat instances ?
Hi John
I don't think this option is available under Solaris :-(.
Anthony.
-Original Message-
From:Turner, John [SMTP:[EMAIL PROTECTED]]
Sent:23
Running multiple tomcat instances ?????
Hi, what is the best way to run multiple tomcat instances on single solaris box ? 1) Is it Installing multiple tomcats physically. or else 2) Installing once and use different server.xml files to start different instances. any advantages for one over the other ? Also, if I do use 2nd process, and if one of the tomcat crashes, how would I know which tomcat is running and which one crashed, because ps -ef|grep tomcat listing is identical for both instances. how do you know which instance is using which server.xml ? thanks -Raj
RE: Running multiple tomcat instances ?????
Not sure about Solaris, but on Linux you can add --cols=XXX to the ps command, where XXX is a numeric column width. So, while ps -ef doesn't show much, ps -ef --cols=300 will show you everything you need to know. John -Original Message- From: Raj Mettai [mailto:[EMAIL PROTECTED]] Sent: Monday, September 23, 2002 11:14 AM To: [EMAIL PROTECTED] Subject: Running multiple tomcat instances ? Hi, what is the best way to run multiple tomcat instances on single solaris box ? 1) Is it Installing multiple tomcats physically. or else 2) Installing once and use different server.xml files to start different instances. any advantages for one over the other ? Also, if I do use 2nd process, and if one of the tomcat crashes, how would I know which tomcat is running and which one crashed, because ps -ef|grep tomcat listing is identical for both instances. how do you know which instance is using which server.xml ? thanks -Raj -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
AW: Running multiple tomcat instances ?????
See below: -Ursprüngliche Nachricht- Von: Raj Mettai [mailto:[EMAIL PROTECTED]] Gesendet: Montag, 23. September 2002 17:14 An: [EMAIL PROTECTED] Betreff: Running multiple tomcat instances ? what is the best way to run multiple tomcat instances on single solaris box ? 1) Is it Installing multiple tomcats physically. 2) Installing once and use different server.xml files to start different instances. As long as the instances are the same version we take solution 2. Also, if I do use 2nd process, and if one of the tomcat crashes, how would I know which tomcat is running and which one crashed, because ps -ef|grep tomcat listing is identical for both instances. There at least two ways: - Check the ports (netstat, lsof) to see which server is down - Use a more powerfull version of ps that shows you also the command line. Then you can see the path to the server.xml for very instance. (Don't know if the current ps for solaris has this feature, my last contact to solaris is more than 3 years ago) how do you know which instance is using which server.xml ? You define a startscript that starts each tomcat with the server.xml that you want for each instance: We install different versions of tomcat like this: /usr/local/java/tomcat-4.0.3 /usr/local/java/tomcat-4.1.10 For each site we have something like this: /www/online/site /log dirctory for the log file /conf web.xml server.xml and other files that contain the site specific setup for tomcat (tailored versions of the files that are provided by tomcat) make shure that the combination of IP and port are unique for each instance of tomcat. ... /work Directory where tomcat stores the genared files and classes /webapps Directories for the contexts /bin start.sh Script that calls the tomcat version that we want to use for this site with the environment for this site: JAVA_HOME=/usr/local/java/jdk/sun1.3.1 CATALINA_HOME=/usr/local/java/tomcat-4.0.3 CATALINA_BASE=/www/online/site -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Running multiple tomcat instances ?????
Hi John I don't think this option is available under Solaris :-(. Anthony. -Original Message- From: Turner, John [SMTP:[EMAIL PROTECTED]] Sent: 23 September 2002 16:17 To: 'Tomcat Users List' Subject: RE: Running multiple tomcat instances ? Not sure about Solaris, but on Linux you can add --cols=XXX to the ps command, where XXX is a numeric column width. So, while ps -ef doesn't show much, ps -ef --cols=300 will show you everything you need to know. John -Original Message- From: Raj Mettai [mailto:[EMAIL PROTECTED]] Sent: Monday, September 23, 2002 11:14 AM To: [EMAIL PROTECTED] Subject: Running multiple tomcat instances ? Hi, what is the best way to run multiple tomcat instances on single solaris box ? 1) Is it Installing multiple tomcats physically. or else 2) Installing once and use different server.xml files to start different instances. any advantages for one over the other ? Also, if I do use 2nd process, and if one of the tomcat crashes, how would I know which tomcat is running and which one crashed, because ps -ef|grep tomcat listing is identical for both instances. how do you know which instance is using which server.xml ? thanks -Raj -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] ** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by MIMEsweeper for the presence of computer viruses. www.mimesweeper.com ** -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Running multiple tomcat instances ?????
Well, in that case, I will include here the content of a message posted by
Tim Funk on 6/13/2002, which has his solution for this, which I find pretty
neat. Hopefully Tim doesn't mind, and I should add that this would break
portability, most notably on Windows machines.
On 6/13/2002, Tim Funk wrote:
For what its worth - I created (and use) a LifecycleListener that runs
on startup which logs the process ID into a file called tomcat.pid.
Which is created by a shell script called writepid.sh. Below is all the
code to get this to work. This code also assumes your current working
directory is $CATALINA_HOME.
--Begin code
import org.apache.catalina.LifecycleEvent;
/**
* A helper for getting the PID of java so shutting down tomcat is MUCH
* easier.
*/
public class PidLifeCycle implements org.apache.catalina.LifecycleListener {
public void lifecycleEvent(LifecycleEvent event) {
if (start.equals(event.getType())) {
try {
Runtime.getRuntime().exec(/bin/sh bin/writepid.sh);
} catch(Throwable e) {
e.printStackTrace();
}
}
}
}
--End Code
The code above will launch the following shell script. Should be in the
bin/ directory of your tomcat installation.
--Begin Shell script
echo $PPID logs/tomcat.pid
--End Shell script
Then add the following into server.xml
--Begin server.xml snippet
Listener className=PidLifeCycle /
--End server.xml snippet
-Tim
== end ===
Thanks, Tim!
John
-Original Message-
From: Anthony Milbourne [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 23, 2002 12:45 PM
To: 'Tomcat Users List'
Subject: RE: Running multiple tomcat instances ?
Hi John
I don't think this option is available under Solaris :-(.
Anthony.
-Original Message-
From: Turner, John [SMTP:[EMAIL PROTECTED]]
Sent: 23 September 2002 16:17
To: 'Tomcat Users List'
Subject:RE: Running multiple tomcat instances ?
Not sure about Solaris, but on Linux you can add
--cols=XXX to the ps
command, where XXX is a numeric column width. So, while ps -ef
doesn't
show much, ps -ef --cols=300 will show you everything you
need to know.
John
-Original Message-
From: Raj Mettai [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 23, 2002 11:14 AM
To: [EMAIL PROTECTED]
Subject: Running multiple tomcat instances ?
Hi,
what is the best way to run multiple tomcat instances on
single solaris
box ?
1) Is it Installing multiple tomcats physically.
or else
2) Installing once and use different server.xml files to
start different
instances.
any advantages for one over the other ?
Also, if I do use 2nd process, and if one of the tomcat
crashes, how
would I know which tomcat is
running and which one crashed, because ps -ef|grep tomcat
listing is
identical for both instances.
how do you know which instance is using which server.xml ?
thanks
-Raj
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RE: Running multiple tomcat instances ?????
Hi John,
I have compiled the code and copied to $CATALINA_HOME$/bin
then added the following snippet into server.xml
!-- Define the Tomcat Stand-Alone Service --
Service name=Tomcat-Standalone
Listener className=PidLifeCycle /
when I start the tomcat, I am not seeing any tomcat.pid and I am getting
the following error in catalina.out
ERROR reading /opt/tomcat1/conf/server.xml
At Line 28 /Server/Service/Listener/ className=PidLifeCycle
Catalina.start: java.lang.ClassNotFoundException: PidLifeCycle
java.lang.ClassNotFoundException: PidLifeCycle
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:1127)
at
org.apache.catalina.loader.StandardClassLoader.loadClass(StandardClassLoader.java:992)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at
org.apache.catalina.util.xml.ObjectCreate.start(XmlMapper.java:616)
at
org.apache.catalina.util.xml.XmlMapper.matchStart(XmlMapper.java:412)
at
org.apache.catalina.util.xml.XmlMapper.startElement(XmlMapper.java:91)
at
org.xml.sax.helpers.XMLReaderAdapter.startElement(XMLReaderAdapter.java:329)
at
org.apache.xerces.parsers.SAXParser.startElement(SAXParser.java:1376)
at
org.apache.xerces.validators.common.XMLValidator.callStartElement(XMLValidator.java:1284)
at
org.apache.xerces.framework.XMLDocumentScanner.scanElement(XMLDocumentScanner.java:1806)
at
org.apache.xerces.framework.XMLDocumentScanner$ContentDispatcher.dispatch(XMLDocumentScanner.java:1182)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDocumentScanner.java:381)
at
org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098)
at
org.xml.sax.helpers.XMLReaderAdapter.parse(XMLReaderAdapter.java:223)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:362)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:301)
at
org.apache.catalina.util.xml.XmlMapper.readXml(XmlMapper.java:228)
at org.apache.catalina.startup.Catalina.start(Catalina.java:725)
at
org.apache.catalina.startup.Catalina.execute(Catalina.java:681)
at
org.apache.catalina.startup.Catalina.process(Catalina.java:179)
at java.lang.reflect.Method.invoke(Native Method)
at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243)
thanks
-Raj
[EMAIL PROTECTED] 09/23/02 12:50PM
Well, in that case, I will include here the content of a message posted
by
Tim Funk on 6/13/2002, which has his solution for this, which I find
pretty
neat. Hopefully Tim doesn't mind, and I should add that this would
break
portability, most notably on Windows machines.
On 6/13/2002, Tim Funk wrote:
For what its worth - I created (and use) a LifecycleListener that runs
on startup which logs the process ID into a file called tomcat.pid.
Which is created by a shell script called writepid.sh. Below is all the
code to get this to work. This code also assumes your current working
directory is $CATALINA_HOME.
--Begin code
import org.apache.catalina.LifecycleEvent;
/**
* A helper for getting the PID of java so shutting down tomcat is MUCH
* easier.
*/
public class PidLifeCycle implements
org.apache.catalina.LifecycleListener {
public void lifecycleEvent(LifecycleEvent event) {
if (start.equals(event.getType())) {
try {
Runtime.getRuntime().exec(/bin/sh bin/writepid.sh);
} catch(Throwable e) {
e.printStackTrace();
}
}
}
}
--End Code
The code above will launch the following shell script. Should be in the
bin/ directory of your tomcat installation.
--Begin Shell script
echo $PPID logs/tomcat.pid
--End Shell script
Then add the following into server.xml
--Begin server.xml snippet
Listener className=PidLifeCycle /
--End server.xml snippet
-Tim
== end ===
Thanks, Tim!
John
-Original Message-
From: Anthony Milbourne [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 23, 2002 12:45 PM
To: 'Tomcat Users List'
Subject: RE: Running multiple tomcat instances ?
Hi John
I don't think this option is available under Solaris :-(.
Anthony.
-Original Message-
From:Turner, John [SMTP:[EMAIL PROTECTED]]
Sent:23 September 2002 16:17
To:'Tomcat Users List'
Subject:RE: Running multiple tomcat instances ?
Not sure about Solaris, but on Linux you can add
--cols=XXX to the ps
command, where XXX is a numeric column width. So, while ps -ef
doesn't
show much, ps -ef --cols=300 will show you everything you
need to know.
John
-Original Message-
From: Raj Mettai [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 23, 2002 11:14 AM
To: [EMAIL PROTECTED]
Subject: Running multiple tomcat instances
RE: Running multiple tomcat instances ?????
Well, I can't really provide details, I was sharing something that I had
bookmarked, not something I've implemented.
Looking at the error, though, it would seem to me that you have to declare
your class something like org.my.class.PidLifeCycle, not just
PidLifeCycle. Tim's post was an example, I don't know that he was
claiming that the code snippets he posted were exactly correct.
ClassNotFoundException is pretty basic, and self-explanatory. Tomcat is
just saying it can't find your class, and/or its declared incorrectly in
server.xml.
Check the docs:
http://jakarta.apache.org/tomcat/tomcat-4.0-doc/config/context.html
especially the section entitled Lifecycle Listeners.
When you get it working, how about posting a HOWTO?
John
-Original Message-
From: Raj Mettai [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 23, 2002 4:18 PM
To: [EMAIL PROTECTED]
Subject: RE: Running multiple tomcat instances ?
Hi John,
I have compiled the code and copied to $CATALINA_HOME$/bin
then added the following snippet into server.xml
!-- Define the Tomcat Stand-Alone Service --
Service name=Tomcat-Standalone
Listener className=PidLifeCycle /
when I start the tomcat, I am not seeing any tomcat.pid and I
am getting
the following error in catalina.out
ERROR reading /opt/tomcat1/conf/server.xml
At Line 28 /Server/Service/Listener/ className=PidLifeCycle
Catalina.start: java.lang.ClassNotFoundException: PidLifeCycle
java.lang.ClassNotFoundException: PidLifeCycle
at
org.apache.catalina.loader.StandardClassLoader.loadClass(Stand
ardClassLoader.java:1127)
at
org.apache.catalina.loader.StandardClassLoader.loadClass(Stand
ardClassLoader.java:992)
at
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at
org.apache.catalina.util.xml.ObjectCreate.start(XmlMapper.java:616)
at
org.apache.catalina.util.xml.XmlMapper.matchStart(XmlMapper.java:412)
at
org.apache.catalina.util.xml.XmlMapper.startElement(XmlMapper.java:91)
at
org.xml.sax.helpers.XMLReaderAdapter.startElement(XMLReaderAda
pter.java:329)
at
org.apache.xerces.parsers.SAXParser.startElement(SAXParser.java:1376)
at
org.apache.xerces.validators.common.XMLValidator.callStartElem
ent(XMLValidator.java:1284)
at
org.apache.xerces.framework.XMLDocumentScanner.scanElement(XML
DocumentScanner.java:1806)
at
org.apache.xerces.framework.XMLDocumentScanner$ContentDispatch
er.dispatch(XMLDocumentScanner.java:1182)
at
org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDo
cumentScanner.java:381)
at
org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098)
at
org.xml.sax.helpers.XMLReaderAdapter.parse(XMLReaderAdapter.java:223)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:362)
at javax.xml.parsers.SAXParser.parse(SAXParser.java:301)
at
org.apache.catalina.util.xml.XmlMapper.readXml(XmlMapper.java:228)
at
org.apache.catalina.startup.Catalina.start(Catalina.java:725)
at
org.apache.catalina.startup.Catalina.execute(Catalina.java:681)
at
org.apache.catalina.startup.Catalina.process(Catalina.java:179)
at java.lang.reflect.Method.invoke(Native Method)
at
org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243)
thanks
-Raj
[EMAIL PROTECTED] 09/23/02 12:50PM
Well, in that case, I will include here the content of a
message posted
by
Tim Funk on 6/13/2002, which has his solution for this, which I find
pretty
neat. Hopefully Tim doesn't mind, and I should add that this would
break
portability, most notably on Windows machines.
On 6/13/2002, Tim Funk wrote:
For what its worth - I created (and use) a LifecycleListener
that runs
on startup which logs the process ID into a file called tomcat.pid.
Which is created by a shell script called writepid.sh. Below
is all the
code to get this to work. This code also assumes your current working
directory is $CATALINA_HOME.
--Begin code
import org.apache.catalina.LifecycleEvent;
/**
* A helper for getting the PID of java so shutting down
tomcat is MUCH
* easier.
*/
public class PidLifeCycle implements
org.apache.catalina.LifecycleListener {
public void lifecycleEvent(LifecycleEvent event) {
if (start.equals(event.getType())) {
try {
Runtime.getRuntime().exec(/bin/sh bin/writepid.sh);
} catch(Throwable e) {
e.printStackTrace();
}
}
}
}
--End Code
The code above will launch the following shell script. Should
be in the
bin/ directory of your tomcat installation.
--Begin Shell script
echo $PPID logs/tomcat.pid
--End Shell script
Then add the following into server.xml
RE: Running multiple tomcat instances ?????
Thanks John, I will read the doc and try to get that code working, meanwhile, I have a found att version of ps under /usr/ucb/ps (solaris) which will give you a whole lot of information about the processes... example: # /usr/ucb/ps -auxwww |grep tomcat root 5629 0.0 5.65760827824 ?S Sep 20 0:27 /usr/java/bin/../bin/sparc/native_threads/java -Djava.endorsed.dirs=/opt/tomcat2/bin:/opt/tomcat2/common/lib -classpath /usr/java/lib/tools.jar:/opt/tomcat2/bin/bootstrap.jar -Dcatalina.base=/opt/tomcat2 -Dcatalina.home=/opt/tomcat2 -Djava.io.tmpdir=/opt/tomcat2/temp org.apache.catalina.startup.Bootstrap start -Raj [EMAIL PROTECTED] 09/23/02 04:25PM Well, I can't really provide details, I was sharing something that I had bookmarked, not something I've implemented. Looking at the error, though, it would seem to me that you have to declare your class something like org.my.class.PidLifeCycle, not just PidLifeCycle. Tim's post was an example, I don't know that he was claiming that the code snippets he posted were exactly correct. ClassNotFoundException is pretty basic, and self-explanatory. Tomcat is just saying it can't find your class, and/or its declared incorrectly in server.xml. Check the docs: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/config/context.html especially the section entitled Lifecycle Listeners. When you get it working, how about posting a HOWTO? John -Original Message- From: Raj Mettai [mailto:[EMAIL PROTECTED]] Sent: Monday, September 23, 2002 4:18 PM To: [EMAIL PROTECTED] Subject: RE: Running multiple tomcat instances ? Hi John, I have compiled the code and copied to $CATALINA_HOME$/bin then added the following snippet into server.xml !-- Define the Tomcat Stand-Alone Service -- Service name=Tomcat-Standalone Listener className=PidLifeCycle / when I start the tomcat, I am not seeing any tomcat.pid and I am getting the following error in catalina.out ERROR reading /opt/tomcat1/conf/server.xml At Line 28 /Server/Service/Listener/ className=PidLifeCycle Catalina.start: java.lang.ClassNotFoundException: PidLifeCycle java.lang.ClassNotFoundException: PidLifeCycle at org.apache.catalina.loader.StandardClassLoader.loadClass(Stand ardClassLoader.java:1127) at org.apache.catalina.loader.StandardClassLoader.loadClass(Stand ardClassLoader.java:992) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:120) at org.apache.catalina.util.xml.ObjectCreate.start(XmlMapper.java:616) at org.apache.catalina.util.xml.XmlMapper.matchStart(XmlMapper.java:412) at org.apache.catalina.util.xml.XmlMapper.startElement(XmlMapper.java:91) at org.xml.sax.helpers.XMLReaderAdapter.startElement(XMLReaderAda pter.java:329) at org.apache.xerces.parsers.SAXParser.startElement(SAXParser.java:1376) at org.apache.xerces.validators.common.XMLValidator.callStartElem ent(XMLValidator.java:1284) at org.apache.xerces.framework.XMLDocumentScanner.scanElement(XML DocumentScanner.java:1806) at org.apache.xerces.framework.XMLDocumentScanner$ContentDispatch er.dispatch(XMLDocumentScanner.java:1182) at org.apache.xerces.framework.XMLDocumentScanner.parseSome(XMLDo cumentScanner.java:381) at org.apache.xerces.framework.XMLParser.parse(XMLParser.java:1098) at org.xml.sax.helpers.XMLReaderAdapter.parse(XMLReaderAdapter.java:223) at javax.xml.parsers.SAXParser.parse(SAXParser.java:362) at javax.xml.parsers.SAXParser.parse(SAXParser.java:301) at org.apache.catalina.util.xml.XmlMapper.readXml(XmlMapper.java:228) at org.apache.catalina.startup.Catalina.start(Catalina.java:725) at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) at org.apache.catalina.startup.Catalina.process(Catalina.java:179) at java.lang.reflect.Method.invoke(Native Method) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243) thanks -Raj [EMAIL PROTECTED] 09/23/02 12:50PM Well, in that case, I will include here the content of a message posted by Tim Funk on 6/13/2002, which has his solution for this, which I find pretty neat. Hopefully Tim doesn't mind, and I should add that this would break portability, most notably on Windows machines. On 6/13/2002, Tim Funk wrote: For what its worth - I created (and use) a LifecycleListener that runs on startup which logs the process ID into a file called tomcat.pid. Which is created by a shell script called writepid.sh. Below is all the code to get this to work. This code also assumes your current working directory is $CATALINA_HOME. --Begin code import org.apache.catalina.LifecycleEvent; /** * A helper for getting the PID of java so
Controlling load on a a machine with multiple tomcat instances
Hi all We are deploying multiple applications on single machine using multiple tomcat instances. There are multiple machines with the same copy of each application on each machine. The whole cluster is hardware load balanced. The problem is the individual machines are not that powerful (Sun T1's) and each application starts it's own thread to handle the request because it take a long time to process. This way we are able to give a fast responses back to the client while the request is actually still being processed. However, this brings up the problem of what happens when the machine is maxed out with all the background processing and lots of new requests arrive. We want to ensure the VM does not die due to overload. We are looking at using a CPU load average to decide whether we can start a thread or not but I'm not sure how successful this can be. Has anybody got any experience of controlling loads like this or point me at some applications or code that can help in the design. Regards Donie -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
How to configure multiple tomcat instances connecting to apache usingthewarp connector
Forgot to mention the versions: RH Linux 7.1, apache-1.3.22-6, tomcat-4.0.4. No response so far ? Nobody have a clue ? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: How to configure multiple tomcat instances connecting to apache using thewarp connector
Is using mod_jk a possibility? Because there is a way to connect multiple tomcat instances to apache using modd_jk. I always thought this was one of the differences between mod_jk and the warp connector, but don't take my word for it. Did you check the warp connector's documentation? Andreas Mohrig -Original Message- From: Jochen Schweflinghaus [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 28, 2002 9:21 AM To: [EMAIL PROTECTED] Subject: How to configure multiple tomcat instances connecting to apache using thewarp connector Forgot to mention the versions: RH Linux 7.1, apache-1.3.22-6, tomcat-4.0.4. No response so far ? Nobody have a clue ? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: How to configure multiple tomcat instances connecting to apache usingthewarp connector
Hi,
thank you for your input, I really appreciate !
I just opened a new thread, to figure out the main differences between warp
and jk connctors ('Experience with connectors to connect tomcat to apache ?
').
The warp connector documentation I am aware of (at
http://jakarta.apache.org/tomcat/tomcat-4.0-doc/config/warp.html) is way
short with 'FIXMEs' all over the place. Is there any better documentatio
source ?
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RE: How to configure multiple tomcat instances connecting to apache using thewarp connector
The WARP connector itself is unfinished. All due respect to the developers,
but if you want to make any progress towards rolling out stable, production
ready applications, you probably want mod_jk, or at least mod_jk2.
Mod_jserv and mod_jk have been around quite a bit, and many people are using
them and can provide advice and suggestions if you run into problems.
John Turner
[EMAIL PROTECTED]
-Original Message-
From: Jochen Schweflinghaus [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, August 28, 2002 4:06 AM
To: [EMAIL PROTECTED]
Subject: RE: How to configure multiple tomcat instances connecting to
apache using thewarp connector
Hi,
thank you for your input, I really appreciate !
I just opened a new thread, to figure out the main
differences between warp
and jk connctors ('Experience with connectors to connect
tomcat to apache ?
').
The warp connector documentation I am aware of (at
http://jakarta.apache.org/tomcat/tomcat-4.0-doc/config/warp.ht
ml) is way
short with 'FIXMEs' all over the place. Is there any better
documentatio
source ?
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RE: How to configure multiple tomcat instances connecting to apache using thewarp connector
On Wed, 28 Aug 2002, Andreas Mohrig wrote: Is using mod_jk a possibility? Because there is a way to connect multiple tomcat instances to apache using modd_jk. I always thought this was one of the differences between mod_jk and the warp connector, but don't take my word for it. Did you check the warp connector's documentation? I'm quite sure you can have multiple tomcat instances with mod_warp (I've done it). The configuration is a a quite straightforward extension of the single instance one, IIRC. What did you (Jochen) try? (It's always best to be specific and give as much details as possible, like what you tried and what happened when you tried it; asking simply How do you do XXX? is not the best way to get people to respond.) -Original Message- From: Jochen Schweflinghaus [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 28, 2002 9:21 AM To: [EMAIL PROTECTED] Subject: How to configure multiple tomcat instances connecting to apache using thewarp connector Forgot to mention the versions: RH Linux 7.1, apache-1.3.22-6, tomcat-4.0.4. No response so far ? Nobody have a clue ? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] Milt Epstein Research Programmer Systems and Technology Services (STS) Campus Information Technologies and Educational Services (CITES) University of Illinois at Urbana-Champaign (UIUC) [EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: How to configure multiple tomcat instances connecting to apac he usingthewarp connector
Of course you are right. The problem was, that besides being tomcat-newby, I'm also a mailing-list-newby. So I created the subject 'How to configure multiple tomcat instances connecting to apac he using thewarp connector' twice. My first mail contained the problem description. I'll append it here. I am sorry for the inconvenience and apologize for my clumsyness, but I'm learning continously ;-). to set up a development environment, I try to map multiple instances of tomcat to apache using the warp connector. Tomcat instance 1 connects to virtual host tteflon3 and has CATALINA_BASE set to absolute directory /prod. In /prod/webapps two applications exist gtfn and soap. Tomcat instance 2 connects to virtual host tctest1 and has CATALINA_BASE set to absolute directory /home/tctest1/tomcat. In /home/tctest1/tomcat/webapps only the application gtfn exists. Each of the two instances will work fine with tomcat when running alone, i.e. the WebApp... directives for the other instance are commented out in the httpd.conf. When tying to run both together, though, there is a repatingly entry in the /var/log/httpd/error_log: [error] Cannot deploy application soap This error definitely comes from the connection to tomcat instance 2, since everything is going well, when I put the application soap in the /home/tctest1/tomcat/webapps folder (a link to /prod/webapps/soap will do). Can anyone tell how to configure this with the warp connector, allowing each tomcat instance to have its own applications ? I got the environment I need working using the AJP13 connector, but I read that the warp connector should be preferred. Can anybody tell why and what the main differences are ? httpd.conf: ... LoadModule webapp_module modules/mod_webapp.so ... AddModule mod_webapp.c ... IfModule mod_webapp.c VirtualHost tteflon3 DocumentRoot /var/www/html ServerName tteflon3 WebAppConnection teflonConnection warp tteflon3:8108 WebAppDeploy gtfn teflonConnection /prod WebAppDeploy soap teflonConnection /soap WebAppInfo /web-inf /VirtualHost VirtualHost tctest1 DocumentRoot /var/www/html ServerName tctest1 WebAppConnection test1Connection warp tctest1:8118 WebAppDeploy gtfn test1Connection /tctest1 /VirtualHost server.xml for tomcat instance 1 connecting to VirtualHost tteflon3: ... Service name=Teflon-Apache Connector className=org.apache.catalina.connector.warp.WarpConnector port=8108 minProcessors=5 maxProcessors=75 enableLookups=true acceptCount=10 debug=0/ Engine className=org.apache.catalina.connector.warp.WarpEngine name=Teflon debug=0 defaultHost=tteflon3 Host className=org.apache.catalina.connector.warp.WarpHost name=tteflon3 debug=0 appBase=webapps unpackWARs=true !-- GTFN Tomcat Context from /prod -- Context path=/prod docBase=gtfn debug=0 reloadable=false crossContext=false Logger className=org.apache.catalina.logger.FileLogger directory=/prod/gtfn/log prefix=gtfn_tomcat suffix =.log timestamp=true/ /Context !-- SOAP Context -- Context path=/soap docBase=soap debug=0 reloadable=true crossContext=false Logger className=org.apache.catalina.logger.FileLogger prefix=soap suffix=.log timestamp=true/ /Context /Host /Engine /Service ... server.xml for tomcat instance 2 connecting to VirtualHost tctest1: ... Service name=Teflon-Test1 Connector className=org.apache.catalina.connector.warp.WarpConnector port=8118 minProcessors=5 maxProcessors=75 enableLookups=true acceptCount=10 debug=0/ Engine className=org.apache.catalina.connector.warp.WarpEngine name=Test1 debug=0 defaultHost=tctest1 Host className=org.apache.catalina.connector.warp.WarpHost name=tctest1 debug=0 appBase=webapps unpackWARs=true !-- GTFN Tomcat Context from /prod -- Context path=/tctest1 docBase=gtfn debug=0 reloadable =false crossContext=false Logger className=org.apache.catalina.logger.FileLogger directory=webapps/gtfn/log prefix=gtfn_tomcat suffix=.log timestamp=true/ /Context /Host /Engine /Service ... -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: How to configure multiple tomcat instances connecting to apac he using thewarp connector
While it will be interesting to see what the final solution is when using WARP, I would say the consensus right now is that AJP13 is the preferred connector. John Turner [EMAIL PROTECTED] -Original Message- From: Jochen Schweflinghaus [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 28, 2002 11:38 AM To: Tomcat Users List Subject: RE: How to configure multiple tomcat instances connecting to apac he using thewarp connector I got the environment I need working using the AJP13 connector, but I read that the warp connector should be preferred. Can anybody tell why and what the main differences are ? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: How to configure multiple tomcat instances connecting to apac he using thewarp connector
On Wed, 28 Aug 2002, Turner, John wrote: While it will be interesting to see what the final solution is when using WARP, I would say the consensus right now is that AJP13 is the preferred connector. While I can't really address all the issues regarding which connector to use, I will say that I had occasion to set up mod_webapp/WARP and it was dead simple. I downloaded the stuff and within 15 minutes I had things running -- just a few lines of config (i.e. in Apache's httpd.conf file) was all I needed. (Of course, being able to download the build mod_webapp.so I needed was a big help.) This was to set up a demo site for a presentation I was giving, so having something running quickly/easily was the main concern. So, if there aren't such concerns about having the maximum performance, and whether Tomcat is handling some of the static stuff, etc., mod_webapp/WARP may very well be a viable option. Of course, another option is running Tomcat standalone -- then you don't have to deal with any Apache-Tomcat connector, and everything is that much simpler. If a site is mostly dynamic stuff, this may very well be the best option. (Note that people talk about the lower performance of Tomcat serving static stuff, but running Tomcat standalone will also improve the performance of Tomcat serving dynamic stuff; where the cutoff lies in terms of when this tradeoff is beneficial, in terms of proportion of static/dynamic stuff, I don't know. But it's something to consider.) -Original Message- From: Jochen Schweflinghaus [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 28, 2002 11:38 AM To: Tomcat Users List Subject: RE: How to configure multiple tomcat instances connecting to apac he using thewarp connector I got the environment I need working using the AJP13 connector, but I read that the warp connector should be preferred. Can anybody tell why and what the main differences are ? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] Milt Epstein Research Programmer Systems and Technology Services (STS) Campus Information Technologies and Educational Services (CITES) University of Illinois at Urbana-Champaign (UIUC) [EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: How to configure multiple tomcat instances connecting to apac he using thewarp connector
Agreed. John -Original Message- From: Milt Epstein [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 28, 2002 12:25 PM To: Tomcat Users List Subject: RE: How to configure multiple tomcat instances connecting to apac he using thewarp connector On Wed, 28 Aug 2002, Turner, John wrote: While it will be interesting to see what the final solution is when using WARP, I would say the consensus right now is that AJP13 is the preferred connector. While I can't really address all the issues regarding which connector to use, I will say that I had occasion to set up mod_webapp/WARP and it was dead simple. I downloaded the stuff and within 15 minutes I had things running -- just a few lines of config (i.e. in Apache's httpd.conf file) was all I needed. (Of course, being able to download the build mod_webapp.so I needed was a big help.) This was to set up a demo site for a presentation I was giving, so having something running quickly/easily was the main concern. So, if there aren't such concerns about having the maximum performance, and whether Tomcat is handling some of the static stuff, etc., mod_webapp/WARP may very well be a viable option. Of course, another option is running Tomcat standalone -- then you don't have to deal with any Apache-Tomcat connector, and everything is that much simpler. If a site is mostly dynamic stuff, this may very well be the best option. (Note that people talk about the lower performance of Tomcat serving static stuff, but running Tomcat standalone will also improve the performance of Tomcat serving dynamic stuff; where the cutoff lies in terms of when this tradeoff is beneficial, in terms of proportion of static/dynamic stuff, I don't know. But it's something to consider.) -Original Message- From: Jochen Schweflinghaus [mailto:[EMAIL PROTECTED]] Sent: Wednesday, August 28, 2002 11:38 AM To: Tomcat Users List Subject: RE: How to configure multiple tomcat instances connecting to apac he using thewarp connector I got the environment I need working using the AJP13 connector, but I read that the warp connector should be preferred. Can anybody tell why and what the main differences are ? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] Milt Epstein Research Programmer Systems and Technology Services (STS) Campus Information Technologies and Educational Services (CITES) University of Illinois at Urbana-Champaign (UIUC) [EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
How to configure multiple tomcat instances connecting to apache using thewarp connector
Hi Group, I'm quite a newby in the tomcat community, so please apologize any misuse of the nomenclature. to set up a development environment, I try to map multiple instances of tomcat to apache using the warp connector. Tomcat instance 1 connects to virtual host tteflon3 and has CATALINA_BASE set to absolute directory /prod. In /prod/webapps two applications exist gtfn and soap. Tomcat instance 2 connects to virtual host tctest1 and has CATALINA_BASE set to absolute directory /home/tctest1/tomcat. In /home/tctest1/tomcat/webapps only the application gtfn exists. Each of the two instances will work fine with tomcat when running alone, i.e. the WebApp... directives for the other instance are commented out in the httpd.conf. When tying to run both together, though, there is a repatingly entry in the /var/log/httpd/error_log: [error] Cannot deploy application soap This error definitely comes from the connection to tomcat instance 2, since everything is going well, when I put the application soap in the /home/tctest1/tomcat/webapps folder (a link to /prod/webapps/soap will do). Can anyone tell how to configure this with the warp connector, allowing each tomcat instance to have its own applications ? I got the environment I need working using the AJP13 connector, but I read that the warp connector should be preferred. Can anybody tell why and what the main differences are ? httpd.conf: ... LoadModule webapp_module modules/mod_webapp.so ... AddModule mod_webapp.c ... IfModule mod_webapp.c VirtualHost tteflon3 DocumentRoot /var/www/html ServerName tteflon3 WebAppConnection teflonConnection warp tteflon3:8108 WebAppDeploy gtfn teflonConnection /prod WebAppDeploy soap teflonConnection /soap WebAppInfo /web-inf /VirtualHost VirtualHost tctest1 DocumentRoot /var/www/html ServerName tctest1 WebAppConnection test1Connection warp tctest1:8118 WebAppDeploy gtfn test1Connection /tctest1 /VirtualHost server.xml for tomcat instance 1 connecting to VirtualHost tteflon3: ... Service name=Teflon-Apache Connector className=org.apache.catalina.connector.warp.WarpConnector port=8108 minProcessors=5 maxProcessors=75 enableLookups=true acceptCount=10 debug=0/ Engine className=org.apache.catalina.connector.warp.WarpEngine name=Teflon debug=0 defaultHost=tteflon3 Host className=org.apache.catalina.connector.warp.WarpHost name=tteflon3 debug=0 appBase=webapps unpackWARs=true !-- GTFN Tomcat Context from /prod -- Context path=/prod docBase=gtfn debug=0 reloadable=false crossContext=false Logger className=org.apache.catalina.logger.FileLogger directory=/prod/gtfn/log prefix=gtfn_tomcat suffix =.log timestamp=true/ /Context !-- SOAP Context -- Context path=/soap docBase=soap debug=0 reloadable=true crossContext=false Logger className=org.apache.catalina.logger.FileLogger prefix=soap suffix=.log timestamp=true/ /Context /Host /Engine /Service ... server.xml for tomcat instance 2 connecting to VirtualHost tctest1: ... Service name=Teflon-Test1 Connector className=org.apache.catalina.connector.warp.WarpConnector port=8118 minProcessors=5 maxProcessors=75 enableLookups=true acceptCount=10 debug=0/ Engine className=org.apache.catalina.connector.warp.WarpEngine name=Test1 debug=0 defaultHost=tctest1 Host className=org.apache.catalina.connector.warp.WarpHost name=tctest1 debug=0 appBase=webapps unpackWARs=true !-- GTFN Tomcat Context from /prod -- Context path=/tctest1 docBase=gtfn debug=0 reloadable =false crossContext=false Logger className=org.apache.catalina.logger.FileLogger directory=webapps/gtfn/log prefix=gtfn_tomcat suffix=.log timestamp=true/ /Context /Host /Engine /Service ... -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
AW: AW: unanswered questions: Multiple Tomcat Instances
I placed all jar files that our application needs
under ${CATALINA_HOME}/webapps/Context/WEB-INF/lib
Class files are OK under
${CATALINA_HOME}/webapps/Context/WEB-INF/classes
(We don't have any)
AFAIK, if you have more than one context and want to use
the same classes across all contexts, you can place them
under ${CATALINA_HOME}/lib and {CATALINA_HOME}/classes.
(Haven't tried this, we just need one context)
I deleted everything from web.xml hat we didn't need.
The only thing we changed in web.xml was the welcome-file-list
element.
I deleted everything from server.xml hat we didn't need.
For the first instance you don't have to change anything.
I changed some setting that are not mandatory. (Set the log file
names to our convention, rename the default context, ...)
For every following instance you have to change all ports
to a unique value. (You should list the port numbers in
/etc/services so it's easier to find out which ports are
used)
Wether this changes are sufficient for an online server I'm
not shure, as we haven't used tomcat as an online server.
-Ursprüngliche Nachricht-
Von: Neil Zanella [mailto:[EMAIL PROTECTED]]
Gesendet: Dienstag, 28. Mai 2002 21:16
An: Tomcat Users List
Betreff: Re: AW: unanswered questions: Multiple Tomcat Instances
snip/
Did you just copy the files under ${CATALINA_BASE}/conf from the
corresponding ones in ${CATALINA_HOME}/conf or do these need to
be altered in one way or another?
Also, I am assuming that you are placing your java and class
files under ${CATALINA_HOME}/webapps/Context/WEB-INF/classes
Is this the case or can it be done differently?
Do any settings need to be modified under
${CATALINA_HOME}/conf/server.xml ?
snip/
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AW: unanswered questions: Multiple Tomcat Instances
I don't know if it's the minimal set, but it works for me:
${CATALINA_BASE}/conf
${CATALINA_BASE}/conf/server.xml
${CATALINA_BASE}/conf/tomcat-users.xml
${CATALINA_BASE}/conf/web.xml
${CATALINA_BASE}/conf/catalina.policy
${CATALINA_BASE}/webapps/Context
// Replace Context with the name of your
// Context (Default=ROOT)
You access it with an url like
localhost:8080
if you are browsing from the server.
hostname:8080
if you are browsing from your intranet
8080 is the port you defined in server.xml for the http connector.
-Ursprüngliche Nachricht-
Von: Neil Zanella [mailto:[EMAIL PROTECTED]]
Gesendet: Dienstag, 28. Mai 2002 01:47
An: Tomcat Users Mailing List
Betreff: unanswered questions: Multiple Tomcat Instances
Does anyone know what a minimal installation of files under
${CATALINA_BASE}
should consist of in order to allow the running of servlets and jsps?
Where should they be placed? How do I access them with a web browser?
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Re: AW: unanswered questions: Multiple Tomcat Instances
Thanks!
Did you just copy the files under ${CATALINA_BASE}/conf from the
corresponding ones in ${CATALINA_HOME}/conf or do these need to
be altered in one way or another?
Also, I am assuming that you are placing your java and class
files under ${CATALINA_HOME}/webapps/Context/WEB-INF/classes
Is this the case or can it be done differently?
Do any settings need to be modified under
${CATALINA_HOME}/conf/server.xml ?
Thanks,
Neil
On Tue, 28 May 2002, Ralph Einfeldt wrote:
I don't know if it's the minimal set, but it works for me:
${CATALINA_BASE}/conf
${CATALINA_BASE}/conf/server.xml
${CATALINA_BASE}/conf/tomcat-users.xml
${CATALINA_BASE}/conf/web.xml
${CATALINA_BASE}/conf/catalina.policy
${CATALINA_BASE}/webapps/Context
// Replace Context with the name of your
// Context (Default=ROOT)
You access it with an url like
localhost:8080
if you are browsing from the server.
hostname:8080
if you are browsing from your intranet
8080 is the port you defined in server.xml for the http connector.
-Ursprüngliche Nachricht-
Von: Neil Zanella [mailto:[EMAIL PROTECTED]]
Gesendet: Dienstag, 28. Mai 2002 01:47
An: Tomcat Users Mailing List
Betreff: unanswered questions: Multiple Tomcat Instances
Does anyone know what a minimal installation of files under
${CATALINA_BASE}
should consist of in order to allow the running of servlets and jsps?
Where should they be placed? How do I access them with a web browser?
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unanswered questions: Multiple Tomcat Instances
Hello,
I am still trying to setup tomcat for multiple instances.
I read RUNNING.txt but it is rather incomplete
in section (4) as it does not describe what a
minimal set of files and their contents in
${CATALINA_BASE} would consist of in this
case...
As a regular user I created a new directory called ~/tomcat and added the
CATALINA_BASE directory to my ~/.bash_profile so that it looks like this:
export PATH=${PATH}:/usr/local/jdk/bin
export JAVA_HOME=/usr/local/j2sdk1.4.0
export CLASSPATH=.:/usr/local/j2sdkee1.3.1/lib/j2ee.jar
export CATALINA_HOME=/usr/local/jakarta-tomcat-4.0.3
export CLASSPATH=${CLASSPATH}:/usr/local/saxon/saxon.jar
export CATALINA_BASE=${HOME}/tomcat
Then I created the four directories mentioned in RUNNING.txt (4) with:
mkdir ${CATALINA_BASE}/{conf,logs,webapps,work}
Now what? I can start tomcat but cannot shut it down:
Catalina.stop: java.lang.Exception: Can't open config file:
/home/nzanella/tomcat/conf/server.xml due to: java.io.FileNotFoundException:
/home/nzanella/tomcat/conf/server.xml (No such file or directory)
Does anyone know what a minimal installation of files under ${CATALINA_BASE}
should consist of in order to allow the running of servlets and jsps?
Where should they be placed? How do I access them with a web browser?
Thanks,
Neil
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Multiple Tomcat Instances on Linux Box : Binding exceptions galore : No ideas left
Hi folks. I'm trying to setup tomcat on one of our servers so that multiple developers can have their own tomcat instance, but keep running into bind exceptions. I've been fiddling with it for quite a few days but have come to a stage where I can't figure out what more to do. ___ Here is the setup: We use redhat linux 7.2, tomcat rpm 4.0.3-1, j2sdk-1.4.0. Tomcat has been installed in /var/tomcat4 on the server. For each developer I have set CATALINA_BASE to point to their own tomcat directory ( /home/www/user/tomcat ) which contains the conf/webapps/temp/logs directories. I have modified the server.xml file in each users directory to use unassigned ports ( eg ports 9620 to 9629 for user1, 9630 to 9639 for user2 etc...). There are no other services running using any of these ports. The server is assigned a whole heap of IP addresses, so IPs 192.168.1.253-240, for instance, all point to the same physical machine. All ip addesses resolve to a name. ie 192.168.1.253=user1.domain.cxm, 192.168.1.252=user2.domain.cxm etc... DNS works fine. These names are used in each users server.xml file (for engine and hosts). No two server.xml files share the same hostname. Tomcat is started by calling '/usr/bin/tomcat4 start' This script has been modified to run the '/usr/bin/dtomcat4' script as the user making the call. Now, to start each instance, each user telnets into the server and executes the command '/usr/bin/tomcat4 start'. The directories tomcat uses are all correct (it does use the correct CATALINA_BASE). _ The problem is this: Tomcat runs for each user if no other tomcat instance is running (I ensure that by running gtop on the server and killing instances run by other users). However, if one other instance of tomcat is running (by another user), we get the error message below. I have tried commenting out all the connectors except for non-SSL HTTP/1.1. I have turned them all on and generated keystore files for SSL. I have replaced the hostnames with the IP addresses. Nothing seems to work. I am at a complete loss at what to do. If anybody has ANY idea where to go from here, I am open to suggestions. _ error message is: Catalina.start: LifecycleException: Error creating server socket (java.net.BindException): java.net.BindException: Address already in use LifecycleException: Error creating server socket (java.net.BindException): java.net.BindException: Address already in use at org.apache.catalina.connector.warp.WarpConnector.initialize(WarpConnector.ja va:491) at org.apache.catalina.core.StandardService.initialize(StandardService.java:454 ) at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:553) at org.apache.catalina.startup.Catalina.start(Catalina.java:780) at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) at org.apache.catalina.startup.Catalina.process(Catalina.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl .java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243) - Root Cause - java.net.BindException: Address already in use at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:321) at java.net.ServerSocket.bind(ServerSocket.java:308) at java.net.ServerSocket.bind(ServerSocket.java:266) at java.net.ServerSocket.init(ServerSocket.java:182) at java.net.ServerSocket.init(ServerSocket.java:138) at org.apache.catalina.net.DefaultServerSocketFactory.createSocket(DefaultServe rSocketFactory.java:118) at org.apache.catalina.connector.warp.WarpConnector.initialize(WarpConnector.ja va:485) at org.apache.catalina.core.StandardService.initialize(StandardService.java:454 ) at org.apache.catalina.core.StandardServer.initialize(StandardServer.java:553) at org.apache.catalina.startup.Catalina.start(Catalina.java:780) at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) at org.apache.catalina.startup.Catalina.process(Catalina.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl .java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243) _ Bert van Brakel Web Design Advance Enterprise Ltd (AEL) email : [EMAIL PROTECTED] Bus ph: +64 3 389 9411 fax : +64 3 389 1411 -- To
RE: Multiple Tomcat Instances on Linux Box : Binding exceptions galore : No ideas left
does tomcat bind to a particular port which is hardcoded in? Has anyone run multiple instances of tomcat on one machine or is it assumed that tomcat is run from client machines and not on a central server? If so,it seems to be a bit strange. Appreciate any help. Bert. Hi folks. I'm trying to setup tomcat on one of our servers so that multiple developers can have their own tomcat instance, but keep running into bind exceptions. I've been fiddling with it for quite a few days but have come to a stage where I can't figure out what more to do. ___ Here is the setup: We use redhat linux 7.2, tomcat rpm 4.0.3-1, j2sdk-1.4.0. Tomcat has been installed in /var/tomcat4 on the server. For each developer I have set CATALINA_BASE to point to their own tomcat directory ( /home/www/user/tomcat ) which contains the conf/webapps/temp/logs directories. I have modified the server.xml file in each users directory to use unassigned ports ( eg ports 9620 to 9629 for user1, 9630 to 9639 for user2 etc...). There are no other services running using any of these ports. The server is assigned a whole heap of IP addresses, so IPs 192.168.1.253-240, for instance, all point to the same physical machine. All ip addesses resolve to a name. ie 192.168.1.253=user1.domain.cxm, 192.168.1.252=user2.domain.cxm etc... DNS works fine. These names are used in each users server.xml file (for engine and hosts). No two server.xml files share the same hostname. Tomcat is started by calling '/usr/bin/tomcat4 start' This script has been modified to run the '/usr/bin/dtomcat4' script as the user making the call. Now, to start each instance, each user telnets into the server and executes the command '/usr/bin/tomcat4 start'. The directories tomcat uses are all correct (it does use the correct CATALINA_BASE). _ The problem is this: Tomcat runs for each user if no other tomcat instance is running (I ensure that by running gtop on the server and killing instances run by other users). However, if one other instance of tomcat is running (by another user), we get the error message below. I have tried commenting out all the connectors except for non-SSL HTTP/1.1. I have turned them all on and generated keystore files for SSL. I have replaced the hostnames with the IP addresses. Nothing seems to work. I am at a complete loss at what to do. If anybody has ANY idea where to go from here, I am open to suggestions. _ error message is: Catalina.start: LifecycleException: Error creating server socket (java.net.BindException): java.net.BindException: Address already in use LifecycleException: Error creating server socket (java.net.BindException): java.net.BindException: Address already in use at org.apache.catalina.connector.warp.WarpConnector.initialize(WarpCo nnector.ja va:491) at org.apache.catalina.core.StandardService.initialize(StandardServic e.java:454 ) at org.apache.catalina.core.StandardServer.initialize(StandardServer. java:553) at org.apache.catalina.startup.Catalina.start(Catalina.java:780) at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) at org.apache.catalina.startup.Catalina.process(Catalina.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorIm pl.java:39 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAc cessorImpl .java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243) - Root Cause - java.net.BindException: Address already in use at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:321) at java.net.ServerSocket.bind(ServerSocket.java:308) at java.net.ServerSocket.bind(ServerSocket.java:266) at java.net.ServerSocket.init(ServerSocket.java:182) at java.net.ServerSocket.init(ServerSocket.java:138) at org.apache.catalina.net.DefaultServerSocketFactory.createSocket(De faultServe rSocketFactory.java:118) at org.apache.catalina.connector.warp.WarpConnector.initialize(WarpCo nnector.ja va:485) at org.apache.catalina.core.StandardService.initialize(StandardServic e.java:454 ) at org.apache.catalina.core.StandardServer.initialize(StandardServer. java:553) at org.apache.catalina.startup.Catalina.start(Catalina.java:780) at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) at org.apache.catalina.startup.Catalina.process(Catalina.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorIm pl.java:39 ) at
RE: Multiple Tomcat Instances on Linux Box : Binding exceptions galore : - fixed. My error
Not to worry. After a relaxing weekend I found the problem this morning. I'd just forgotton to set a port right at the bottom of the server.xml files. What a dofus. My apologies for adding unnessescary traffic to the list Bert. -Original Message- From: Webdesign [mailto:[EMAIL PROTECTED]] Sent: Monday, 20 May 2002 9:36 a.m. To: Tomcat Users List Subject: RE: Multiple Tomcat Instances on Linux Box : Binding exceptions galore : No ideas left does tomcat bind to a particular port which is hardcoded in? Has anyone run multiple instances of tomcat on one machine or is it assumed that tomcat is run from client machines and not on a central server? If so,it seems to be a bit strange. Appreciate any help. Bert. Hi folks. I'm trying to setup tomcat on one of our servers so that multiple developers can have their own tomcat instance, but keep running into bind exceptions. I've been fiddling with it for quite a few days but have come to a stage where I can't figure out what more to do. ___ Here is the setup: We use redhat linux 7.2, tomcat rpm 4.0.3-1, j2sdk-1.4.0. Tomcat has been installed in /var/tomcat4 on the server. For each developer I have set CATALINA_BASE to point to their own tomcat directory ( /home/www/user/tomcat ) which contains the conf/webapps/temp/logs directories. I have modified the server.xml file in each users directory to use unassigned ports ( eg ports 9620 to 9629 for user1, 9630 to 9639 for user2 etc...). There are no other services running using any of these ports. The server is assigned a whole heap of IP addresses, so IPs 192.168.1.253-240, for instance, all point to the same physical machine. All ip addesses resolve to a name. ie 192.168.1.253=user1.domain.cxm, 192.168.1.252=user2.domain.cxm etc... DNS works fine. These names are used in each users server.xml file (for engine and hosts). No two server.xml files share the same hostname. Tomcat is started by calling '/usr/bin/tomcat4 start' This script has been modified to run the '/usr/bin/dtomcat4' script as the user making the call. Now, to start each instance, each user telnets into the server and executes the command '/usr/bin/tomcat4 start'. The directories tomcat uses are all correct (it does use the correct CATALINA_BASE). _ The problem is this: Tomcat runs for each user if no other tomcat instance is running (I ensure that by running gtop on the server and killing instances run by other users). However, if one other instance of tomcat is running (by another user), we get the error message below. I have tried commenting out all the connectors except for non-SSL HTTP/1.1. I have turned them all on and generated keystore files for SSL. I have replaced the hostnames with the IP addresses. Nothing seems to work. I am at a complete loss at what to do. If anybody has ANY idea where to go from here, I am open to suggestions. _ error message is: Catalina.start: LifecycleException: Error creating server socket (java.net.BindException): java.net.BindException: Address already in use LifecycleException: Error creating server socket (java.net.BindException): java.net.BindException: Address already in use at org.apache.catalina.connector.warp.WarpConnector.initialize(WarpCo nnector.ja va:491) at org.apache.catalina.core.StandardService.initialize(StandardServic e.java:454 ) at org.apache.catalina.core.StandardServer.initialize(StandardServer. java:553) at org.apache.catalina.startup.Catalina.start(Catalina.java:780) at org.apache.catalina.startup.Catalina.execute(Catalina.java:681) at org.apache.catalina.startup.Catalina.process(Catalina.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorIm pl.java:39 ) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAc cessorImpl .java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:243) - Root Cause - java.net.BindException: Address already in use at java.net.PlainSocketImpl.socketBind(Native Method) at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:321) at java.net.ServerSocket.bind(ServerSocket.java:308) at java.net.ServerSocket.bind(ServerSocket.java:266) at java.net.ServerSocket.init(ServerSocket.java:182) at java.net.ServerSocket.init(ServerSocket.java:138) at org.apache.catalina.net.DefaultServerSocketFactory.createSocket(De faultServe rSocketFactory.java:118) at org.apache.catalina.connector.warp.WarpConnector.initialize(WarpCo nnector.ja va:485) at org.apache.catalina.core.StandardService.initialize(StandardServic e.java
servlet in multiple Tomcat-instances
Hi, I'm using multiple instances of Tomcat 3.2.4. The problem is, that I can access servlets of one instance even if the servlet is NOT in the webapps-directory of another instance. This is very confusing during the development of the servlet, because it still lives in the other instances although I shut down the right instance. The main instance of Tomcat lsitens on Port 8087: http://www.mydomain.com:8087/Community/Poll The servlet Poll ist configured to run this instance: server.xml: Context path=/Community docBase=webapps/Community crossContext=false debug=0 reloadable=true /Context web.xml: servlet-mapping servlet-name Poll /servlet-name url-pattern /Poll /url-pattern /servlet-mapping and it is loaded correct during the startup of this TC-instance: tomcat.log: 2002-04-25 11:25:04 - Ctx( /Community ): Mapping with unregistered servlet Poll start-script of this instance: TOMCATLOG=/usr/local/jakarta-tomcat-3.2.4/logs/tomcat_start.log TOMCATLOG2=/usr/local/jakarta-tomcat-3.2.4/logs/tomcat_err.log export JAVA_HOME=/usr/local/jdk1.3.1_02 export TOMCAT_HOME=/usr/local/jakarta-tomcat-3.2.4 cd $TOMCAT_HOME /usr/local/jakarta-tomcat-3.2.4/bin/startup.sh -f /usr/local/jakarta-tomcat-3.2.4/conf/server.xml $TOMCATLOG 2$TOMCATLOG2 so far, so good. BUT: I can access this servlet with an other TC-instance, which listens on Port 9015: http://www.mydomain.com:9015/Community/Poll in this instance, there is NO entry in server.xml which points on the servlet Poll. Even the directory webapps/Community does not exist in this instance! ...and it is loaded during the startup :(( 2002-04-25 11:24:16 - Ctx( /Community ): Mapping with unregistered servlet Poll start-script of this instance, which uses the same binaries but an other server.xml: TOMCATLOG=/usr/local/tc-324-i2125/logs/i2125tomcat_start.log TOMCATLOG2=/usr/local/tc-324-i2125/logs/i2125tomcat_err.log export JAVA_HOME=/usr/local/jdk1.3.1_02 export TOMCAT_HOME=/usr/local/jakarta-tomcat-3.2.4 /usr/local/jakarta-tomcat-3.2.4/bin/startup.sh -f /usr/local/tc-324-i2125/conf/server.xml $TOMCATLOG 2$TOMCATLOG2 Any ideas how I can stop this behaviour ? Many thanks ! Kay -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
multiple Tomcat-instances and a confused servlet...
Hi, I'm using multiple instances of Tomcat 3.2.4. The problem is, that I can access servlets of one instance even if the servlets is in the webapps-directory of another instance. This is very confusing during the development of the servlet, because it still lives in the other instances although I shut down the right instance. The main instance of Tomcat lsitens on Port 8087: http://www.mydomain.com:8087/Community/Poll The servlet Poll ist configured to run this instance: server.xml: Context path=/Community docBase=webapps/Community crossContext=false debug=0 reloadable=true /Context web.xml: servlet-mapping servlet-name Poll /servlet-name url-pattern /Poll /url-pattern /servlet-mapping and it is loaded correct during the startup of this TC-instance: tomcat.log: 2002-04-25 11:25:04 - Ctx( /Community ): Mapping with unregistered servlet Poll start-script of this instance: TOMCATLOG=/usr/local/jakarta-tomcat-3.2.4/logs/tomcat_start.log TOMCATLOG2=/usr/local/jakarta-tomcat-3.2.4/logs/tomcat_err.log export JAVA_HOME=/usr/local/jdk1.3.1_02 export TOMCAT_HOME=/usr/local/jakarta-tomcat-3.2.4 cd $TOMCAT_HOME /usr/local/jakarta-tomcat-3.2.4/bin/startup.sh -f /usr/local/jakarta-tomcat-3.2.4/conf/server.xml $TOMCATLOG 2$TOMCATLOG2 so far, so good. BUT: I can access this servlet with an other TC-instance, which listens on Port 9015: http://www.mydomain.com:9015/Community/Poll in this instance, there is NO entry in server.xml which points on the servlet Poll. Even the directory webapps/Community does not exist in this instance! ...and it is loaded during the startup :(( 2002-04-25 11:24:16 - Ctx( /Community ): Mapping with unregistered servlet Poll start-script of this instance, which uses the same binaries but an other server.xml: TOMCATLOG=/usr/local/tc-324-i2125/logs/i2125tomcat_start.log TOMCATLOG2=/usr/local/tc-324-i2125/logs/i2125tomcat_err.log export JAVA_HOME=/usr/local/jdk1.3.1_02 export TOMCAT_HOME=/usr/local/jakarta-tomcat-3.2.4 /usr/local/jakarta-tomcat-3.2.4/bin/startup.sh -f /usr/local/tc-324-i2125/conf/server.xml $TOMCATLOG 2$TOMCATLOG2 Any ideas how I can stop this behaviour ? Many thanks ! Kay -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
RE: multiple Tomcat-instances and a confused servlet...
In server.xml, ContextInterceptor className=...AutoSetup will automatically add subdirectories of TOMCAT_HOME/webapps as contexts, using the subdirectory name as the context name. Context declarations in server.xml can override the settings for the auto-added contexts. If you don't want a web application automatically served, move it outside of the TOMCAT_HOME/webapps or remove the interceptor so no contexts are automatically served. Cheers, Larry -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 25, 2002 6:06 AM To: [EMAIL PROTECTED] Subject: multiple Tomcat-instances and a confused servlet... Hi, I'm using multiple instances of Tomcat 3.2.4. The problem is, that I can access servlets of one instance even if the servlets is in the webapps-directory of another instance. This is very confusing during the development of the servlet, because it still lives in the other instances although I shut down the right instance. The main instance of Tomcat lsitens on Port 8087: http://www.mydomain.com:8087/Community/Poll The servlet Poll ist configured to run this instance: server.xml: Context path=/Community docBase=webapps/Community crossContext=false debug=0 reloadable=true /Context web.xml: servlet-mapping servlet-name Poll /servlet-name url-pattern /Poll /url-pattern /servlet-mapping and it is loaded correct during the startup of this TC-instance: tomcat.log: 2002-04-25 11:25:04 - Ctx( /Community ): Mapping with unregistered servlet Poll start-script of this instance: TOMCATLOG=/usr/local/jakarta-tomcat-3.2.4/logs/tomcat_start.log TOMCATLOG2=/usr/local/jakarta-tomcat-3.2.4/logs/tomcat_err.log export JAVA_HOME=/usr/local/jdk1.3.1_02 export TOMCAT_HOME=/usr/local/jakarta-tomcat-3.2.4 cd $TOMCAT_HOME /usr/local/jakarta-tomcat-3.2.4/bin/startup.sh -f /usr/local/jakarta-tomcat-3.2.4/conf/server.xml $TOMCATLOG 2$TOMCATLOG2 so far, so good. BUT: I can access this servlet with an other TC-instance, which listens on Port 9015: http://www.mydomain.com:9015/Community/Poll in this instance, there is NO entry in server.xml which points on the servlet Poll. Even the directory webapps/Community does not exist in this instance! ...and it is loaded during the startup :(( 2002-04-25 11:24:16 - Ctx( /Community ): Mapping with unregistered servlet Poll start-script of this instance, which uses the same binaries but an other server.xml: TOMCATLOG=/usr/local/tc-324-i2125/logs/i2125tomcat_start.log TOMCATLOG2=/usr/local/tc-324-i2125/logs/i2125tomcat_err.log export JAVA_HOME=/usr/local/jdk1.3.1_02 export TOMCAT_HOME=/usr/local/jakarta-tomcat-3.2.4 /usr/local/jakarta-tomcat-3.2.4/bin/startup.sh -f /usr/local/tc-324-i2125/conf/server.xml $TOMCATLOG 2$TOMCATLOG2 Any ideas how I can stop this behaviour ? Many thanks ! Kay -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED] -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
Multiple tomcat instances - disadvantages
hi, I am developing an application service provider site. different people can register there, and they will get their own homepage and data (sensitive data like credit card info etc). currently i have created different folders for each user and gave it names (DNS) like user1.mysite.com, user2.mysite.com etc. from that folders index page users will reach www.mysite.com:8080/login.jsp. (/var/tomcat4/web-apps/ROOT/login.jsp) now i want to customize the code for each user, so i am planning to use multiple instances of tomcat. what are the disadvantages of using multiple instances of tomcat? later if i want to move one user to another server will there be any problem (because i don't want to change the url for that user, ie that should be user1.mysite.com always.) and I need SSL also, how multiple instance of tomcat will effect SSl enabling of my site? thanx in advance Robert AndreaGet more from the Web. FREE MSN Explorer download : http://explorer.msn.com
Multiple Tomcat instances
Hello all, Iam having problems configuring multiple instances of Tomcat with Apache. I have 7 instances of Tomcat talking to Apache. But Tomcat is serving both HTML and Servlet content. I want Apache to serve HTML and Tomcat to serve out Servlet content. I have a _server.xml file for each instance of Tomcat and the Context goes like this: Context path=/pboAlpha docBase=webapps/pboAlpha debug=0 reloadable=false crossContext=false /Context [I have one context in each server.xml file so, each instance hosts just one context.] Also I have 1 tomcat.conf and it goes this like: ApJServMount /pboAlpha ajpv12://dev.server.com:8995/pboAlpha ApJServMount /pboBeta ajpv12://dev.server.com:8996/pboBeta ...and 5 more... I think, as soon as Apache come across /pboAlpha in the URL, it forwards it to Tomcat instance wether it be a HTML request or Servlet request. What am I doing wrong? I would be grateful for any help. Thank you, Vijay -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
HOWTO: Multiple tomcat instances: Apache 1.3.x - Tomcat 4.x - mod_webapp
Hello everybody, I recently spent some time setting up a server with a single apache instance and multiple tomcat instances - for use as a shared hosting environment. I wasn't able to find much official documentation on this topic, so I put together a short HOWTO on the subject: http://www.javadyne.com/HOWTO-tomcat-shared.html Please send any comments, suggestions, corrections, etc. to [EMAIL PROTECTED] Joe
RE: load balancing Multiple Tomcat instances
Hi! I don't have good news for you. The support for AJP 13 in Tomcat 4 should be considered as beta... And Tomcat 4.0.1 does not support load balancing... If you really need this feature, stat at 3.x. GG | Hi, | Loadbalancer worker can be set in Worker.properties in 3.x, but in 4.x | there | is no documentation as to how we can use loadbalancer worker for load | balancing between multiple instances of Tomcat. Please point me to the | right | documentation in case I missed it. If load balancing is native to 4.x, then | is there anything we need to do from our side at all? Please give me some | information regarding that. | Thanks -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
load balancing Multiple Tomcat instances
Hi, Loadbalancer worker can be set in Worker.properties in 3.x, but in 4.x there is no documentation as to how we can use loadbalancer worker for load balancing between multiple instances of Tomcat. Please point me to the right documentation in case I missed it. If load balancing is native to 4.x, then is there anything we need to do from our side at all? Please give me some information regarding that. Thanks -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
Multiple Tomcat Instances
Hi, I am using apache and Tomcat 3.2.1. I am trying to have two instances of tomcat running. I have different server.xml for each tomcat instance. server1.xml AJP on Port 8007 server2.xml AJP on port 8009 I have no problem starting tomcat using the two server.xml files. Every time i start tomcat with one of server.xml files i rename the mod_jk.conf-auto and then included the two static files in httpd.conf.I have context test in server1.xml and context myapp in server2.xml. When i do http://xxx.com/test or http://xxx.com/myapp i can see the index.html page for that context but when i try to run the servlet or the jsp for those context then it does work. How do i tell apache as to which context is to be serverd by which port or tomcat instance. I checked the archives and somebody was mentioning about adding new workers in worker.properties file to direct requests to the different tomcats/jvms.I think i am missing this or some other step but do not know how to do it? Please advise. Thanks a lot Abhijat Thakur bDNA Corporation
RE: Multiple Tomcat Instances
I have 1 machine with two tomcat instance. tomcat_worker.properties worker.list=ajp12_1, ajp12_2 worker.ajp12_1.port=8007 worker.ajp12_1.host=localhost worker.ajp12_1.type=ajp12 worker.ajp12_1.lbfactor=1 worker.ajp12_2.port=8009 worker.ajp12_2.host=localhost worker.ajp12_2.type=ajp13 worker.ajp12_2.lbfactor=1 server1.xml -- Connector className=org.apache.tomcat.service.PoolTcpConnector Parameter name=handler value=org.apache.tomcat.service.connector.Ajp12ConnectionHandler/ Parameter name=port value=8007/ /Connector server2.xml -- Connector className=org.apache.tomcat.service.PoolTcpConnector Parameter name=handler value=org.apache.tomcat.service.connector.Ajp12ConnectionHandler/ Parameter name=port value=8009/ /Connector httpd.conf JkMount /*.jsp ajp12_1 JkMount /tomcat_context_name/*.jsp ajp12_1 JkMount /*.jsp ajp12_2 JkMount /tomcat_context_name/*.jsp ajp12_2 that's all. Maybe this example help you. PD: I'm working on shutdown tomcat problem, always shutdown the instance on 8007. - Original Message - From: Abhijat Thakur [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, September 14, 2001 4:59 PM Subject: Multiple Tomcat Instances Hi, I am using apache and Tomcat 3.2.1. I am trying to have two instances of tomcat running. I have different server.xml for each tomcat instance. server1.xml AJP on Port 8007 server2.xml AJP on port 8009 I have no problem starting tomcat using the two server.xml files. Every time i start tomcat with one of server.xml files i rename the mod_jk.conf-auto and then included the two static files in httpd.conf.I have context test in server1.xml and context myapp in server2.xml. When i do http://xxx.com/test or http://xxx.com/myapp i can see the index.html page for that context but when i try to run the servlet or the jsp for those context then it does work. How do i tell apache as to which context is to be serverd by which port or tomcat instance. I checked the archives and somebody was mentioning about adding new workers in worker.properties file to direct requests to the different tomcats/jvms.I think i am missing this or some other step but do not know how to do it? Please advise. Thanks a lot Abhijat Thakur bDNA Corporation
RE: Multiple Tomcat Instances
Hello, You need a single mod_jk.conf and a single worker.properties. You need to write it yourself: you declare your two tomcats into workers.properties, and for getting your mod_jk.conf, you merge your 2 mod_jk.conf.auto, but when you make the mapping for the dynamic part of a webapp (servlets or jsps) you have to specify on which tomcat to sent the request. For example, if you have a foo webapp in a tomcat1, and a bar webapp in a tomcat2: in workers.properties, you need something like: worker.list=ajp_tomcat1,ajp_tomcat2 worker.ajp_tomcat1.port=8007 worker.ajp_tomcat1.host=localhost worker.ajp_tomcat1.type=ajp12 worker.ajp_tomcat2.port=8009 worker.ajp_tomcat2.host=localhost worker.ajp_tomcat2.type=ajp12 and in mod_jk.conf, something like: JkMount /foo/servlet/* ajp_tomcat1 JkMount /foo/*.jsp ajp_tomcat1 JkMount /bar/servlet/* ajp_tomcat2 JkMount /bar/*.jsp ajp_tomcat2 Xavier Marjou -Original Message- From: Abhijat Thakur [SMTP:[EMAIL PROTECTED]] Sent: Friday, September 07, 2001 7:16 PM To: [EMAIL PROTECTED] Subject: RE: Multiple Tomcat Instances I am using two tomcats server1.xml AJP on Port 8007 server2.xml AJP on port 8009 I am using Http via Apache.Every time i start tomcat with one of server.xml files i rename the mod_jk.conf-auto and the included the two static files in httpd.conf. Even after doing this i can only go to the contexts served by server1.xml file and not by server2.xml. How do i tell apache as to which context is to be serverd by which port. I think i am missing this step but do not know how to do it? Thanks Abhijat Thakur -Original Message- From: Marjou Xavier [mailto:[EMAIL PROTECTED]] Sent: Friday, September 07, 2001 4:37 AM To: '[EMAIL PROTECTED]' Subject: RE: Multiple Tomcat Instances Hello, Each Tomcat can be interfaced with a HTTP client with 2 different ways (defined in server.xml) - either with regular HTTP (eg: on port 8080) - or/and indirectly via Apache (AJP protocol is used, eg port 8007) If you use HTTP via Apache, Apache will need mod_jk.conf and worker.properties to know how to dialogue with Tomcat If you use only one instance of Tomcat, then the default files (server.xml, mod_jk.conf-auto and worker.properties) work well. Now if you use 2 Tomcats, you can do: - in server1.xml - HTTP on port 8080) - AJP on port 8007) -in server2.xml - HTTP on port 8081) - AJP on port 8009) Each Tomcat will have its own socket for serving HTTP. It is not possible to share a socket (eg: 8080) between to Tomcats as you are trying to do. If you use HTTP via Apache, Apache will need to write your own mod_jk.conf and worker.properties. (It is important to realize that the default ones are working only when there is the default configuration of Tomcat (ie: only one Tomcat)). I hope this help, Xavier Marjou
RE: Multiple Tomcat Instances
Hello, Each Tomcat can be interfaced with a HTTP client with 2 different ways (defined in server.xml) - either with regular HTTP (eg: on port 8080) - or/and indirectly via Apache (AJP protocol is used, eg port 8007) If you use HTTP via Apache, Apache will need mod_jk.conf and worker.properties to know how to dialogue with Tomcat If you use only one instance of Tomcat, then the default files (server.xml, mod_jk.conf-auto and worker.properties) work well. Now if you use 2 Tomcats, you can do: - in server1.xml - HTTP on port 8080) - AJP on port 8007) -in server2.xml - HTTP on port 8081) - AJP on port 8009) Each Tomcat will have its own socket for serving HTTP. It is not possible to share a socket (eg: 8080) between to Tomcats as you are trying to do. If you use HTTP via Apache, Apache will need to write your own mod_jk.conf and worker.properties. (It is important to realize that the default ones are working only when there is the default configuration of Tomcat (ie: only one Tomcat)). I hope this help, Xavier Marjou
RE: Multiple Tomcat Instances
If you use HTTP via Apache, Apache will need to write your own mod_jk.conf and worker.properties I wanted to say : If you use HTTP via Apache, YOU will need to write your own mod_jk.conf and worker.properties Sorry about it
RE: Multiple Tomcat Instances
I am using two tomcats server1.xml AJP on Port 8007 server2.xml AJP on port 8009 I am using Http via Apache.Every time i start tomcat with one of server.xml files i rename the mod_jk.conf-auto and the included the two static files in httpd.conf. Even after doing this i can only go to the contexts served by server1.xml file and not by server2.xml. How do i tell apache as to which context is to be serverd by which port. I think i am missing this step but do not know how to do it? Thanks Abhijat Thakur -Original Message- From: Marjou Xavier [mailto:[EMAIL PROTECTED]] Sent: Friday, September 07, 2001 4:37 AM To: '[EMAIL PROTECTED]' Subject: RE: Multiple Tomcat Instances Hello, Each Tomcat can be interfaced with a HTTP client with 2 different ways (defined in server.xml) - either with regular HTTP (eg: on port 8080) - or/and indirectly via Apache (AJP protocol is used, eg port 8007) If you use HTTP via Apache, Apache will need mod_jk.conf and worker.properties to know how to dialogue with Tomcat If you use only one instance of Tomcat, then the default files (server.xml, mod_jk.conf-auto and worker.properties) work well. Now if you use 2 Tomcats, you can do: - in server1.xml - HTTP on port 8080) - AJP on port 8007) -in server2.xml - HTTP on port 8081) - AJP on port 8009) Each Tomcat will have its own socket for serving HTTP. It is not possible to share a socket (eg: 8080) between to Tomcats as you are trying to do. If you use HTTP via Apache, Apache will need to write your own mod_jk.conf and worker.properties. (It is important to realize that the default ones are working only when there is the default configuration of Tomcat (ie: only one Tomcat)). I hope this help, Xavier Marjou
Antwort: Multiple Tomcat Instances
Hi If you need a custom config you can not use *auto for obvious reasons (it will be overwritten everytime tomcat starts) Copy it and include your copy. Of course you must do subsequent changes to the config yourself. (contexts, ...) Additionally you have to tell apache which workers to use for your contexts. (JkMount) so it will look for the correct ports. This is done in worker.properties. hope this helps ;) stefan
RE: Multiple Tomcat Instances
What you are trying to do isn't quite supported by Tomcat 3.2.x. The name of the auto-generated config file is not configurable, so the second Tomcat instance steps on the first's. I would recommend renaming the config file after starting each instance of Tomcat. Whenever a context is added or removed, repeat this process. Running multiple instances is better supported in Tomcat 3.3. The auto-generated file is written by a module (a.k.a interceptor) in the server.xml. Parameters may be specified, which include the name of the config file to write and where to write it. Your two server.xml files could specify different file names to avoid overwriting each other. Cheers, Larry P.S. There are many other configuration enhancements besides this one in Tomcat 3.3. -Original Message- From: Abhijat Thakur [mailto:[EMAIL PROTECTED]] Sent: Wednesday, September 05, 2001 7:42 PM To: [EMAIL PROTECTED] Subject: Multiple Tomcat Instances Hi, I need to run multiple instances of Tomcat on Apache. As mentioned in documentation i have the two server.xml files specifying two different ports. Tomcat starts fine with the two server.xml files. I might be wrong when it comes to changes in Apache configuration that need to be done when multiple instances of tomcat need to be run.In Apache changes need to be made to mod_jk.conf.auto (since this is included in apaches httpd.conf) so that we can tell mod_jk module which instance will handle which request. Now mod_jk.conf.auto is an auto generated file everytime tomcat starts up so if i make any changes they will be overridden. How can this be handled? Just to see if multiple instances of tomcat work i addded the contexts in the mod_jk.conf.auto. It still did not work. Are there any steps that are missing. Thanks Abhijat Thakur bDNA Corporation
