RE: how to suppor 30000 concurrent users
Oh OK cool so it is how I thought - presumably you dont use the session very much (in terms of sending stuff to it) or else there would be one serious amount of db work! Pete
Problem installing tomcat
Greetings, I'm trying to install tomcat 4.1 on a redhat linux 8.1 box. I'm having trouble b/c I need to install a couple of programs first like xerces-j-1.3.0-1.noarch.rpm but I can't install that until I get the jdk 1.2 kit on the machine. I've found the tar ball of the kit but it doesn't work even when I followed instructions on how to set the varibles from redhat. I'm hoping to find an rpm but I haven't been able to - any suggestions? Bobbie Atristain Internet Systems Administrator Media General, INC. 804.649.6156 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Off topic : tools for testing mod_ssl/OpenSSL ???
Hi All. TCPDUMP-ing the login for NYTimes.com as a control group I can certainly see USERID and PASSWORD (and other things) eg. ... Referer: http://www.nytimes.com/auth/login Accept-Language: en-us Content-Type: application/x-www-form-urlencoded Accept-Encoding: gzip, deflate User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows 98) Host: www.nytimes.com Content-Length: 84 Connection: Keep-Alive Cache-Control: no-cache Cookie: RMID; tpopunder_orbitz23a-nyt4; NYT-S; nyt-d; tpopunder_orbitz23-nyt4; spopunder; NYT_GR=3f3069f9-eD5iDGvcR1EwqdL/n8+qGA is_continue=true&URI=&OQ=&USERID=niemand&PASSWORD=geheimnis&log=Log+In&SAVEOPTION=YES÷ 1?&(r) ... After enabling httpd with mod_ssl, the TCPDUMP from the following client browsers are mostly NOT human-readable : * Mozilla * MSIE5 * Nescape 6.2 * Netspcae 7.1 (which is the bee in the bonnet) They all present the login dialogue box and the "untrusted self-signed certificate" screen. Therefore it might be a bug with 7.1, which seemingly does not report an embedded secure link from an unsecured page as such eg. from http:/my.first.do which as a link to https://my.secure.dom However,in 7.1, if I key in the URL https://my.secure.dom (ie without going through http://my.first.dom), the lock closes and one can view the certificate info by clicking on it. I assume this is how it works : Step 1: certificate presented, accepts and ecrypt input from client browser Step 2: transmit to mod_ssl enabled Apache2 server Step 3: Off to Tomcat courtesy of following bits of code : ... ServerName my.dom.com ServerAdmin [EMAIL PROTECTED] DocumentRoot /home/king/public_html ErrorLog /usr/local/apache2/logs/king_error.log CustomLog /usr/local/apache2/logs/king_access.log common SSLEngine on SSLCipherSuite ALL:!ADH:!EPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL SSLCertificateFile /path/to/ssl/server.crt SSLCertificateKeyFile /path/to/server.key JkExtractSSL on JkHTTPSIndicator HTTPS JkSESSIONIndicator SSL_SESSION_ID JkCIPHERIndicator SSL_CIPHER JkCERTSIndicator SSL_CLIENT_CERT JkMount /dom ajp13 JkMount /dom/* ajp13 ... Step 4 : FIX ME - does Apache2 unecrypt content before passing on to Tomcat ??? Step 5 : FIX ME - does Tomcat pass db data back to Apache2 and the data get encrypted there ??? If anyone out there has similar or diff experience, please share it. Ralph Einfeldt wrote: > > One way to verify this, is to use a packet sniffer > and watch the pakets that are exchanged bewenn server > and browser. > > Under linux you can use tcpdump. > http://www.tcpdump.org/ > > > tcpdump has also a windows brother (or sister): > http://windump.polito.it/ > > Under linux and windows you can use ethereal: > http://www.ethereal.com/ > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, August 05, 2003 9:17 AM > > To: [EMAIL PROTECTED] > > Subject: Off topic : any tools for testing mod_ssl/OpenSSL ??? > > > > > > Hi All. > > I have got my Apache mod_ssl/OpenSSL talking with Tomcat nicely using > > MSIE5, Netscape 6.2 and Mozilla. > > On Netscape 7.1, it says I am transmiting in clear text for all to see > > AFTER logging in and accepting the certificate !?! SOmehow I > > doubt that, > > I think it is telling me fips. > > Are there any tools to tes whether the transmission is in clear text ? > > TIA :-) > > > > - > > 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: Stable tomcat + apache + mod_j2 + ssl
The systems administrators will be the ones setting up stunnel and OpenSSL. Thus, they will have access to the configuration files, certificates, keys and other resources used by OpenSSL. Thus, they will most likely have the ability to decrypt whatever communications are sent over the network. Sooner or later, at some point, you have to trust somebody. Otherwise, it gets really lonely out there. John Ramanan Ramadoss wrote: We have our webserver and app server on two separate physical machines but on the same LAN sub-net. But the information has to be in encrypted form so that the information is not in a readable form even to the system/network administrators who are maintaining the machines. -Original Message- From: Rick Roberts [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 05, 2003 11:45 AM To: Tomcat Users List Subject: Re: Stable tomcat + apache + mod_j2 + ssl Are you sure that you need to encrypt traffic between Apache and Tomcat? That is an unusual requirement, because usually both tomcat and Apache are running on the same computer or at least running in the same LAN sub-net. Ramanan Ramadoss wrote: Thanks for your reply. We need to implement end to end encryption. I do not have an option with respect to the OS. I have Windows 2000 as our OS for both the webserver and app server. Due to end to end encryption, we have to secure the communication between the webserver and app server. I have heard about mod_ssl but have not used it. Would that be an option to secure the communication between apache and tomcat. Your opinion is highly appreciated. --Ramanan - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Session Listener's Session Event session empty?
Howdy, When the session is created it has no attributes, that's why it's empty. You can't have put attributes there before it was created ;) Yoav Shapira Millennium ChemInformatics >-Original Message- >From: Anthony Cunningham [mailto:[EMAIL PROTECTED] >Sent: Tuesday, August 05, 2003 2:54 AM >To: Tomcat Users List; this >Subject: Session Listener's Session Event session empty? > >Greetings, > >I am trying to make a page showing all the logged in users and possibly >all their details (stored in the session). >While searching I came across information about the HttpSessionListener >interface and tried implementing that. > >However in Tomcat 4.0.1 and also 4.0.4 when sessionCreated is called, >the session retrieved from from the session event object doesn't appear >to contain the attributes I put there. Has anyone experienced this? > >Also if anyone has implemented this type of logged in user list in >another way I'd be grateful for your advice. > > >thanks in advance, > >Anthony > > >- >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]
Element "web-app" does not allow "servlet" here
I'm getting a bunch of the errors included below. I've attached my web.xml. My web.xml seems to pass xml validators. The last time I ran into this, I think I just reinstalled tomcat, but I shouldn't have to do this on such a regular basis. I'm running tomcat-4.1.24-LE. How do I fix this problem? Thanks for any tips. Aug 5, 2003 11:58:55 AM org.apache.commons.digester.Digester error SEVERE: Parse Error at line 40 column -1: Element "web-app" does not allow "servlet" he re. org.xml.sax.SAXParseException: Element "web-app" does not allow "servlet" here. at org.apache.crimson.parser.Parser2.error(Parser2.java:3160) at org.apache.crimson.parser.ValidatingParser$ChildrenValidator.consume(Validat ingParser.java:349) at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1317) at org.apache.crimson.parser.Parser2.content(Parser2.java:1779) at org.apache.crimson.parser.Parser2.maybeElement(Parser2.java:1507) at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java:500) at org.apache.crimson.parser.Parser2.parse(Parser2.java:305) at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:442) at org.apache.commons.digester.Digester.parse(Digester.java:1543) at org.apache.catalina.startup.ContextConfig.applicationConfig(ContextConfig.ja va:282) at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:639) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java: 243) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor t.java:166) at org.apache.catalina.core.StandardContext.start(StandardContext.java:3567) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:8 21) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:579) at org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.j ava:307) at org.apache.catalina.core.StandardHost.install(StandardHost.java:772) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:492) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:400) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:718) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:358) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor t.java:166) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1196) at org.apache.catalina.core.StandardHost.start(StandardHost.java:738) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:347) at org.apache.catalina.core.StandardService.start(StandardService.java:497) at org.apache.catalina.core.StandardServer.start(StandardServer.java:2190) at org.apache.catalina.startup.Catalina.start(Catalina.java:512) at org.apache.catalina.startup.Catalina.execute(Catalina.java:400) at org.apache.catalina.startup.Catalina.process(Catalina.java:180) 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:203) -- Jiann-Ming Su [EMAIL PROTECTED] 404-712-2603 Development Team Systems Administrator General Libraries Systems Division http://java.sun.com/j2ee/dtds/web-app_2.2.dtd";> ConnectionServlet db.ConnectionServlet 1 browse search.ARCSearch 2 ARCSearch search.ARCSearch 2 user user.User 2 loaduser user.LoadUser 2 annotation annotation.Annotation 2 bookbag bag.bagServlet 2 AttribSaver search.AttribSaver 2 search.AdvancedFormServlet search.AdvancedFormServlet 3 OAI-DP arc20.dp.DPOAI OAI20 arc20.dp.DPOAI OAI-SP arc.sp.SPOAI BASIC Example Basic Authentication Area - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat will not install
I'm trying to install xerces so I can install TOMCAT but I keep getting this message although my path is set bash-2.05b# rpm -ivh xerces-j-1.3.0-1.noarch.rpm error: Failed dependencies: jdk >= 1.2 is needed by xerces-j-1.3.0-1 Bobbie Atristain Internet Systems Administrator Media General, INC. 804.649.6156 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Persistent Sessions
Hi, First, thanks to all of you. Now, I have class which implements HttpSessionListener and HttpSessionActivationListener. In the sessionCreated method I have the following line to bind the current class to the session. CODE: event.getSession().setAttribute(getClass().getName(), this); My sessionDidActivate method does not seem to be invoked, I have logging message in both the methods and I can sessionCreated being called in the Log but not sessionDidActivate. Please, help Thanks Kal -Original Message- From: Jon Wingfield [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 05, 2003 4:09 AM To: Tomcat Users List Subject: Re: Persistent Sessions Your HttpSessionActivationListener must be an object bound to the session. So, in your HttpSessionListener's sessionCreated method add the HttpSessionActivationListener to the session as an attribute. HTH, Jon Kal Govindu wrote: > Hi Yoav, > > Ok, now my listener class implements a HttpSessionActivationListener and > neither of the function; > sessionDidActivate or sessionWillPassivate are being called. Do I need > anything special to implement this and so that Did Activate and will > Passivate events fire? > > I am running on Tomcat4.1.12, if that matter. > > Thanks > Kal > > -Original Message- > From: Shapira, Yoav [mailto:[EMAIL PROTECTED] > Sent: Monday, August 04, 2003 2:35 PM > To: Tomcat Users List > Subject: RE: Persistent Sessions > > > > Howdy, > I'm sorry, I meant use an activation listener instead of the context > listener to invalidate them. That should work. contextDestroyed() is > too late as all the session handling has already happened. > > Yoav Shapira > Millennium ChemInformatics > > - 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: Apache 2.0.47, Tomcat 5.0.5, JK2 connector 2.0.2
Hi, I have gotten Tomcat 5.0.4/Apache 2.0.47/JK2 2.0.2 working on a Solaris 7 box. I set it up just like you would set it up in the FAQs. My comment echos John's advice. Forget the jni and just stick to TCP sockets. -e On Tue, 5 Aug 2003, Pat Pomatto wrote: > Hi, > > > > I'm running on Linux Apache 2.0.47, Tomcat 5.0.5 and trying to use JK2 > connector 2.0.2 which I built successfully. I configured the connector > with jni. I cannot seem to get the connector to work. In my > apache/logs/error_log the error generated is: > > > > [Tue Aug 05 10:31:53 2003] [error] vm.init(): no jvm_dll_path, will use > LD_LIBRARY_PATH libjvm.so > > [Tue Aug 05 10:31:53 2003] [error] Can't load native library libjvm.so : > libjvm.so: cannot open shared object file: > > No such file or directory > > [Tue Aug 05 10:31:53 2003] [error] jni.loadJvm() Error - can't load jvm > dll > > [Tue Aug 05 10:31:53 2003] [error] workerEnv.initChannel() init failed > for channel.jni:jni > > [Tue Aug 05 10:31:53 2003] [error] workerEnv.initWorkers() init failed > for worker.jni:onStartup > > [Tue Aug 05 10:31:53 2003] [error] workerEnv.initWorkers() init failed > for worker.jni:onShutdown > > [Tue Aug 05 10:31:53 2003] [error] shm.init(): No file > > [Tue Aug 05 10:31:53 2003] [error] uriEnv.init() map to invalid worker > /jsp-examples/* ajp13:localhost:8009 > > [Tue Aug 05 10:32:05 2003] [error] mod_jk.handle() No worker for > /jsp-examples/index.html > > > > > > Any ideas? Has anyone successfully gotten jk2 connector 2.0.2 working > with Tomcat 5? > > > > Thanks in Advance, > > Pat > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: RE: Java and tomcat issues
Sure, APPEND the PATH variable with JAVA_HOME, don't overwrite it! Path=$PATH;JAVA_HOME/bin - Original Message - From: [EMAIL PROTECTED] Date: Tuesday, August 5, 2003 2:07 pm Subject: RE: Java and tomcat issues > Okay everytime I do it my commands don't work on the box like ls, > cd, ll - the > only command that works is the exit command > > Any ideas? > > -Original Message- > From: Shapira, Yoav [EMAIL PROTECTED] > Sent: Tuesday, August 05, 2003 2:06 PM > To: Tomcat Users List > Subject: RE: Java and tomcat issues > > > > Howdy, > > >I'm trying to set up JAVA for tomcat on a redhat 8.1 box and I keep > getting > >this message after I set the JAVA_HOME path > > > >-bash-2.05b# which java > >/usr/bin/which: no java in > >(/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R > 6/bi > >n > >) > >-bash-2.05b# > > That's pretty clear, isn't it? ;) Add $JAVA_HOME/bin to your $PATH. > > Yoav Shapira > > > > This e-mail, including any attachments, is a confidential business > communication, and may contain information that is confidential, > proprietaryand/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 > immediatelydelete 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] > > - 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 /bin, I cannot startup or shutdown tomcat, because the startup.sh and shutdown.sh (in /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]
Tomcat 5.0.2 and IIS
If someone knows tomcat 5.0.2 works with IIS??? I tried to search for it, I got to know tomcat 3.3 works withIIS but there are no docs for tomcat 5.0 verison. If someone knows about this, please help me out. Thanks, Vikas _ Going on a holiday? Want to study abroad? http://server1.msn.co.in/msnleads/citibankpersonalloan/citibankploanjuly03.asp?type=txt Need a personal loan? - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
how to suppor 30000 concurrent users
howmany concurrent users does tomcat support? if i want to design a web application for 30,000 concurrent users, what is the step? clustering is related to this? how many servers i need if i am clustering _ Latest movie trailers. On your mobile. http://server1.msn.co.in/sp03/gprs/howcani_movie.asp With GPRS. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Turning off session persistence
Hi Yoav, thanks for the pointer. I will look it up. Indeed now that you mention the DefaultContext, that rings a bell. I will experiment with that. Apologies for my RTFQ! Vrata -- V . . . . . . . . . tel:+34.918.131.331 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Turning off session persistence
thanks, I did already! But I don't think you understand my question! I know you can reset the defaut, but that's only on a per context basis. I want to reset the default for all contexts, ie if a new context is deployed and not defined, then the default should not persist! The manual doesn't wether or not this can be achieved. RTFQ Vrata Shapira, Yoav wrote: Howdy, If no is defined, then the default used by Tomcat is the one that persists! Is there a way to change the default that tomcat uses? Yes. RTFM. 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] -- V . . . . . . . . . tel:+34.918.131.331 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: how to suppor 30000 concurrent users
build a model like - each user is on the site for n Minutes - each user makes n requests - the mean time between to page requests is n seconds - each page request creates n http requests - specify the average size for an http request - specify the average ratio of request/db access . With that you can compute memory usage, requests/per second, concurrent databae connection etc. With these number you have to test your application (not tomcat) and see what your application can handle. There is no rule of thumb. (It can't be, it's like predicting the time to ride by horse fom New York to Frisko, whithout knowing the rider, the baggage and without having a map) Depending on the structure of the site and the effort you want to invest you can improve the result by building groups of users, pages, requests and estimate these. > -Original Message- > From: Heart Prince [mailto:[EMAIL PROTECTED] > Sent: Tuesday, August 05, 2003 2:57 PM > To: [EMAIL PROTECTED] > Subject: how to suppor 3 concurrent users > > > howmany concurrent users does tomcat support? if i want to > design a web > application for 30,000 concurrent users, what is the step? > clustering is > related to this? how many servers i need if i am clustering > > _ > Latest movie trailers. On your mobile. > http://server1.msn.co.in/sp03/gprs/howcani_movie.asp With GPRS. > > > - > 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: Stable tomcat + apache + mod_j2 + ssl
Thanks for your reply. We need to implement end to end encryption. I do not have an option with respect to the OS. I have Windows 2000 as our OS for both the webserver and app server. Due to end to end encryption, we have to secure the communication between the webserver and app server. I have heard about mod_ssl but have not used it. Would that be an option to secure the communication between apache and tomcat. Your opinion is highly appreciated. --Ramanan -Original Message- From: John Turner [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 05, 2003 11:17 AM To: Tomcat Users List Subject: Re: Stable tomcat + apache + mod_j2 + ssl Apache 2.0.47 Tomcat 4.1.24 There isn't an SSL version of either the mod_jk or jk2 connector. Since JK and JK2 don't ever communicate with a client, there's really no need. You might be able to setup a tunnel using stunnel or similar, but on Windows that will be problematic. Apache binary: http://httpd.apache.org/download.cgi Tomcat binary: http://jakarta.apache.org/site/binindex.cgi Connectors: http://jakarta.apache.org/builds/jakarta-tomcat-connectors/ Connector FAQ: http://jakarta.apache.org/tomcat/faq/connectors.html John Ramanan Ramadoss wrote: > Dear friends, > I am a newbie and have to set up a secure enviroment between tomcat and > apache. > > Can someone tell me which is the stable production ssl version of > tomcat and apache? Is there a ssl version of mod_jk or mod_j2 connector? If > no which connector should we use? Where can I get a built version of the > webserver, app server and the connectors that work with each other for a > windows 2000 environment. > Thanks > Ramanan > > > - > 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: how to suppor 30000 concurrent users
I always wondered about how high-profile sites like Ebay and Amazon updated their systems because they never seem to place messages at their sites regarding system downtime for routine maintainance. In a clustered app server environment, I'm assuming that each node is downed and updated individually while the other nodes support user requests, or perhaps it's done differently. Can you explain, thanks! Raffi -Original Message- From: Angus Mezick [mailto:[EMAIL PROTECTED] Sent: Tuesday, August 05, 2003 9:07 AM To: Tomcat Users List Subject: RE: how to suppor 3 concurrent users With that many users you are going to HAVE to cluster if for no other reason than to provide backup for system maintanence. As to how many, the answer is it depends on the hardware you are going to use and the types of load your webapp puts on the system. When you say 30k concurrent users do you mean 30k people clicking a link at the same time or 30k active sessions at a time? If you are going to have this many people clicking on the same time you should have the cash to do proper load testing to see how many people one of your servers can take, divide 30k by that number for the number of servers you have, multiply by 1.1 AT LEAST and round up to get 110% capacity so you should be able to swap out one server. This is BARE minimum. Don't forget about the wonderful world of DB backends and routers and all the fun stuff :) --Angus > -Original Message- > From: Heart Prince [mailto:[EMAIL PROTECTED] > Sent: Tuesday, August 05, 2003 8:57 AM > To: [EMAIL PROTECTED] > Subject: how to suppor 3 concurrent users > > > howmany concurrent users does tomcat support? if i want to > design a web > application for 30,000 concurrent users, what is the step? > clustering is > related to this? how many servers i need if i am clustering > > _ > Latest movie trailers. On your mobile. > http://server1.msn.co.in/sp03/gprs/howcani_movie.asp With GPRS. > > > - > 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: how to suppor 30000 concurrent users
Hi Angus how difficult it is for making tomcat to support clustering , do we need to have additional tools? thanks Prince - Original Message - From: "Angus Mezick" <[EMAIL PROTECTED]> To: "Tomcat Users List" <[EMAIL PROTECTED]> Sent: Tuesday, August 05, 2003 7:41 PM Subject: RE: how to suppor 3 concurrent users Doesn't seem to have that much of an effect. I guess I should profile it though. I don't want to use session persistence because then I would need to use network session clustering. Session clustering is a requirement for my app. I figure using a DB instead of memory to store my sessions is better than sending 5 network connections to the other 5 of the 6 web servers with the session data that will only be valid to ONE of those servers. Before tomcat we were using Iplanet 4.1 and the cisco load balance we have SAID it could handle session affinity but it didn't seem to be able to. So we went with a DB solution which, to me, seems to be the more optimal solution. The DB also means I can have a MUCH larger number of active sessions using my servers because I don't have to worry about the sessions using all my memory. I just have to worry about DB disk space but I had have 2 or 3 terabytes of disk while only have 2 GB of memory. Seems to be an easy trade. --Angus > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > Sent: Tuesday, August 05, 2003 9:40 AM > To: Tomcat Users List > Subject: RE: how to suppor 3 concurrent users > > > Angus, > doesnt using a shared jdbc based session manager slow the > whole thing down > a lot? Why dont you just use session persistence? > Pete > - 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: performance question
Howdy, >Tomcat 4.0.6 Use Tomcat 4.1.27. >We have looked at the box, and it does not seem to be taxed. We have tried >setting CATALINA_OPTS to maximize performance but tomcat does not seem to >be using the additional memory and the system's load average remains low. Java (this is not tomcat-specific) will use as much memory as it needs. You can add -Xms to specify a minimum memory usage if you'd like, but this won't gain you much performance. >Is there any way we can have tomcat use more resources, as much as >necessary to run the application faster? No, see above. >On a side note I can find no documentation that explains the difference >between JAVA_OPTS and CATALINA_OPTS? There's no difference. I like JAVA_OPTS better as I think it's a clearer name. >Also, we tried upgrading to 4.1.24 yesterday on another test server. The >application will not run correctly on the newer version of tomcat, any >ideas why? How can you expect anyone to know without knowing your app? >The results of the queries are not correct and the data is not >returned correctly. Is there any major change in tomcat 4.1.24 from 4.0.6 >that would cause such a disparity. There are no changes from 4.0.x to 4.1.x that would cause your DB queries to return different results. It's much more likely a DB connection configuration issue on your side. 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: Mod_jk2 error when starting tomcat
You are missing the commons-logging.jar file which has that org/apache/commons/logging/LogFactory.class. Download this jar file and put it in your classpath. Brian Menke wrote: Hi everyone, I have been attempting to connect apache and tomcat. Apache 2, tomcat 4.1.18. I think that I have most thing set up (it's very confusing) but I'm getting this error when tomcat starts. It looks to me that I'm, missing a class called LogFactory, but I never saw instructions anywhere about this?? In my server.xml file, I basically copied most of what was in the stand-alone section and created another service called nnmall2-Connector. It looks like tomcat did start the service, but there were errors. That makes me think I don't have this quite right. Any ideas?? TIA. -Brian Starting service nnmall2-Connector Apache Tomcat/4.1.18 Aug 4, 2003 12:30:27 PM org.apache.jk.server.JkMain newHandler SEVERE: Can't create apr java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory at org.apache.jk.apr.AprImpl.(AprImpl.java:340) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:130) at org.apache.jk.server.JkMain.newHandler(JkMain.java:556) at org.apache.jk.server.JkMain.start(JkMain.java:341) at org.apache.jk.server.JkCoyoteHandler.start(JkCoyoteHandler.java:169) at org.apache.coyote.tomcat4.CoyoteConnector.start(CoyoteConnector.java: 1056) at org.apache.catalina.core.StandardService.start(StandardService.java:5 06) at org.apache.catalina.core.StandardServer.start(StandardServer.java:218 9) at org.apache.catalina.startup.Catalina.start(Catalina.java:512) at org.apache.catalina.startup.Catalina.execute(Catalina.java:400) at org.apache.catalina.startup.Catalina.process(Catalina.java:180) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl. java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces sorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203) Aug 4, 2003 12:30:28 PM org.apache.jk.common.ChannelSocket init INFO: JK2: ajp13 listening on /0.0.0.0:8019 Aug 4, 2003 12:30:28 PM org.apache.jk.server.JkMain start INFO: Jk running ID=0 time=15/94 config=c:\tomcat\conf\jk2.properties - 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: how to suppor 30000 concurrent users
I wish I knew. Our current bottleneck is on the DB side. We can down half our webservers and keep the site up any time but during peak usage. But you have the right procedure. As for the java vs .net discussion, I am not going there. It is more a question of personal taste, budget, willingness to use open source, and need for that expensive support security blanket. I will say that MS really doesn't like to get in the middle of a sinking project. They would prefer to achitect it up front if they are going to be called in later to solve your problems. The answer to your question on maximums still depends on size of sessions, load each request puts on the server, speed of the machine, and what your network is like. Tomcat can handle a good sized load. I think its biggest limiting factors are how much memory it will use and how many requests it can accept at any one time. The best suggestion I have for you is make sure you can quickly load up a new server using as much scripting as possible so if you have to add more HW you will not be deep in the weeds trying to find your way out. --Angus > -Original Message- > From: Prince [mailto:[EMAIL PROTECTED] > Sent: Friday, August 02, 2002 9:21 AM > To: Tomcat Users List > Subject: Re: how to suppor 3 concurrent users > > > hi Angus, > > from ur reply what i understand is, first I have to develop > the application > (with maximum tuning possible from scripting side) and the > deploy it on a > server and load test. then add the needed number of servers. > have i got it > right? > what is an avarage no of maximum concurrent users (active > sessions) for > tomcat (just to get a general idea about the possible investment) > > does it depends on the scripting technology also? how is Microsoft > technology is such case (heavy load) compared to tomcat? > thanks and regards > Prince > > - Original Message - > From: "Angus Mezick" <[EMAIL PROTECTED]> > To: "Tomcat Users List" <[EMAIL PROTECTED]> > Sent: Tuesday, August 05, 2003 6:37 PM > Subject: RE: how to suppor 3 concurrent users > > > With that many users you are going to HAVE to cluster if for no other > reason than to provide backup for system maintanence. As to how many, > the answer is it depends on the hardware you are going to use and the > types of load your webapp puts on the system. When you say 30k > concurrent users do you mean 30k people clicking a link at > the same time > or 30k active sessions at a time? If you are going to have this many > people clicking on the same time you should have the cash to do proper > load testing to see how many people one of your servers can > take, divide > 30k by that number for the number of servers you have, multiply by 1.1 > AT LEAST and round up to get 110% capacity so you should be > able to swap > out one server. This is BARE minimum. Don't forget about > the wonderful > world of DB backends and routers and all the fun stuff :) > --Angus > > > -Original Message- > > From: Heart Prince [mailto:[EMAIL PROTECTED] > > Sent: Tuesday, August 05, 2003 8:57 AM > > To: [EMAIL PROTECTED] > > Subject: how to suppor 3 concurrent users > > > > > > howmany concurrent users does tomcat support? if i want to > > design a web > > application for 30,000 concurrent users, what is the step? > > clustering is > > related to this? how many servers i need if i am clustering > > > > _ > > Latest movie trailers. On your mobile. > > http://server1.msn.co.in/sp03/gprs/howcani_movie.asp With GPRS. > > > > > > > - > > 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]
? problem
Hi
I need ur help ...In our application while creating a task we are
entering taskid,now we are getting some problem when we include EUR symbol
in taskid ..it will replace EUR symbol to €and it storing in database
also like this ,because of this when user enter 5 EUR symbols it will makes
database problem(taskid length is 16 in db,where as because of these EUR it
will place 5*7=35 characters in db).
I tried with following character sets ISO-8859-1,ISO-8859-15 and also UTF-8.
I have done the following things because of this i am able to display EUR in
gui(character set iso-8859-1) but still i am seeing € in database.
TaskDisp calls this method(HtsimpleDisp)
-
public Input makeTextInputField(String name, int size, int maxlen, String
value)
{
Input f =null;
if(value != null)
f =
makeInputType(Input.TEXT,name,Util.getEscapedString(value)/*escapeHTML(value
)*/);
else
f = makeInputType(Input.TEXT,name,value);
f.setSize(size);
f.setMaxlength(maxlen);
return f;
}
this calls siefleet.util.Util package
public static String getEscapedString(String source)
{
System.err.println("In getEscapedString "+source);
StringBuffer result = new StringBuffer();
for(int i=0; i"); break;
case '<': sb.append("<"); break;
case '>': sb.append(">"); break;
case '&': sb.append("&"); break;
case '"': sb.append("""); break;
case 'ä': sb.append("ä"); break;
case 'ö': sb.append("ö"); break;
case 'ü': sb.append("ü"); break;
case 'ß': sb.append("ß"); break;
case 'Ä': sb.append("Ä"); break;
case 'Ö': sb.append("Ö"); break;
case 'Ü': sb.append("Ü"); break;
case '§': sb.append("§"); break;
case 'EUR': sb.append("€"); break; //this is euro
entity value
default:
if (c < 32 || 129 < c)
sb.append("&#" + (int)c + ";");
else
sb.append(c);
}
}
return sb.toString();
}
Where as in EditTask we are calling Map taskAttrs =
dumTask.makeTableFromHttpRequest(s,req); this will call
common/store/JavaConverter.java
public static String toStringClass(Object o)
{
if (o == null)
return null;
if (o instanceof String)
{
System.err.println("In Javaconverter o is string
"+System.getProperty("file.encoding"));
String myval=(String)o;
myval=Util.getEscapedString(myval);
System.err.println("In Javaconverter o is string "+myval);
return myval;
/*System.setProperty("file.encoding","ISO-8859-1");
System.err.println("In Javaconverter o is string
"+System.getProperty("file.encoding"));
//return (String)o;
String myval=(String)o;
System.err.println("In Javaconverter o is string "+myval);
myval=myval.replaceAll("€","EUR");
myval=Util.escapeHTML(myval);
System.err.println("In Javaconverter o is string after parsing
"+myval);
return myval;*/
//return (String)o;
}
return o.toString();
}
My quetion why database storing € in place of EUR
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
Re: Persistent Sessions
Your HttpSessionActivationListener must be an object bound to the session. So, in your HttpSessionListener's sessionCreated method add the HttpSessionActivationListener to the session as an attribute. HTH, Jon Kal Govindu wrote: Hi Yoav, Ok, now my listener class implements a HttpSessionActivationListener and neither of the function; sessionDidActivate or sessionWillPassivate are being called. Do I need anything special to implement this and so that Did Activate and will Passivate events fire? I am running on Tomcat4.1.12, if that matter. Thanks Kal -Original Message- From: Shapira, Yoav [mailto:[EMAIL PROTECTED] Sent: Monday, August 04, 2003 2:35 PM To: Tomcat Users List Subject: RE: Persistent Sessions Howdy, I'm sorry, I meant use an activation listener instead of the context listener to invalidate them. That should work. contextDestroyed() is too late as all the session handling has already happened. Yoav Shapira Millennium ChemInformatics - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Tomcat authentication against unixware/linux
I looking for a realm implementation, designpattern or api that makes Tomcat able to authentificate against a unix/linux operating system. This will be the best solution for my little problem of maintaining two user lists - The users for Tomcat and the users for my operating system. Alternately I would like to know if there is an api for java that can access/authenticate the users on unix/linux. Thanks! Regards Kleth -- Kristian A. Leth Maersk Data Transport/Architects & Specialists. -- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
