where find documentation
Hi all, i'm try to find a documentation that describe every tag inside the web.xml file, but i wasn't able to find anything about that on http://tomcat.apache.org/tomcat-5.5-doc/config/context.html someone can help me? thanks in advance; Francesco Italy
Re: Application monitoring
Hello David, I will not ask you why you are reinventing the wheel (ok, I lied, why are you reinventing the wheel?). You have multiple options available: 1) You could use jmx and publish your information as jmx beans. 2) You could use rmi between you 'collector' and the target apps. 3) You could use simple http (preferably json), but in that case I would advice to setup a separate collector for it. For any of the above options there are numbers of classes and utilities you can use. For example jersey as jax-rs implementation is perfect for exchange of json data, for rmi you could use DistributeMe ( http://www.distributeme.org) or spring-remote, and so on. But yet again, why reinventing the wheel? regards Leon On Wed, May 14, 2014 at 6:28 PM, David kerber dcker...@verizon.net wrote: I am working on a small Tomcat servlet to monitor other tomcat-based applications running on the same physical machine, and am trying to figure out the best way to communicate between the monitoring app, and the monitored apps. My setup has several tomcat instances of a single application, each running from its own directory, and listening on its own TCP port. So there is no direct communication between the instances. I'm trying to monitor various data about the application, not about tomcat itself or the JVM. So I want to collect such things as the number of requests it has processed, the last data received, etc, and not things like memory and cpu usage. It is my app, so I can (and expect to need to) add methods or servlets to return the information I want to collect. My question is, what is the best way to make the request to get the data? Would URL request from the monitoring app to the monitored app be appropriate, and then parse the response out for display in a browser? If so, what java class is likely to be useful for this communication? I will have all the information needed to connect to the application instance (server, port, etc), but want it to be portable across OS types. Thanks! - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Is the listserv down?
Last message I got was Mark notifying Martin he was toast. That was 2 days ago. Jeffrey Janner Sr. Network Administrator jeffrey.jan...@polydyne.commailto:first.l...@polydyne.com PolyDyne Software Inc. Main: 512.343.9100 Direct: 512.583.8930 [cid:image002.png@01CC0FB7.4FF43CE0] Speed, Intelligence Savings in Sourcing
Re: Compiling mod_jk in CentOs release 6.5
/configure --with-apxs=/usr/lib64/httpd/modules whenever I run above I keep getting this: configure: error: You must specify a valid --with-apxs path Any ideas why I am getting this error? I just did this with my centos 6.5 system and the command I used was: ./configure --with-apxs=/usr/sbin/apxs - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Tomcat dependency on application server
Hi, We have JBoss as the application server Tomcat as the web server in our production developmental setup which is on Red Hat Linux 5.X. We have tomcat 6.X. My query is that if I need to restart tomcat, do I need to restart JBoss Tomcat both or just restarting Tomcat would be enough. I am asking this query because I had killed the tomcat process using kill -9 and while restarting tomcat it was not starting but when I killed JBoss tomcat and then restarted, Tomcat was up. I hope my query is clear whether Tomcat is dependent on JBoss. Regards -- *STL Disclaimer:* The content of this message may be legally privileged and confidential and are for the use of the intended recipient(s) only. It should not be read, copied and used by anyone other than the intended recipient(s). If you have received this message in error, please immediately notify the sender, preserve its confidentiality and delete it. Before opening any attachments please check them for viruses and defects. No employee or agent is authorised to conclude any binding agreement on behalf of Sterlite Technologies Limited with another party by email without express written confirmation by authorised person. Visit us at www.sterlitetechnologies.com Please consider environment before printing this email !
Re: tomcat6 thread locked
On 7 May 2014 17:37, devoss ind devoss@gmail.com wrote:
Hi,
Am using tomcat 6, java6 in production environment to run our web
application. We found that recently, cpu in top is showing 100% nearly.
Then we dig into each thread cpu usage by -H option in top. We found only
one thread is taking 100%usage and identified the thread using thread dump.
The thread dump for that particular thread which is using 100% usage is as
follows...
http-8080-exec-3687 daemon prio=10 tid=0x7336f400 nid=0x41a1 runnable
[0x619ad000..0x619ade30]
java.lang.Thread.State: RUNNABLE
at
org.apache.coyote.http11.InternalNioOutputBuffer.addToBB(InternalNioOutputBuffer.java:616)
- locked 0x967b22f0 (a
org.apache.coyote.http11.InternalNioOutputBuffer)
at
org.apache.coyote.http11.InternalNioOutputBuffer.commit(InternalNioOutputBuffer.java:608)
at
org.apache.coyote.http11.Http11NioProcessor.action(Http11NioProcessor.java:1024)
at org.apache.coyote.Response.action(Response.java:183)
at org.apache.coyote.Response.sendHeaders(Response.java:379)
at
org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:305)
at
org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:288)
at
org.apache.catalina.connector.Response.flushBuffer(Response.java:548)
at
org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:345)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:144)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at
org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:879)
at
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:719)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2080)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
We can see that above thread is locked due to some problem in NIO.
We have verified in tomcat manager also for such thread. We found that a
particular thread is taking 14140517ms time and the request in that line is
of POST request which is not related to our application.
That particular thread is not releasing till we restart tomcat.
This is happening frequently.
Please help me to find out the root cause of this problem. How to avoid
restarts.
Our server.xml connector configuration is as follows...
Connector port=${http.port}
protocol=org.apache.coyote.http11.Http11NioProtocol
connectionTimeout=5000
acceptCount=1500
maxThreads=1
redirectPort=8443 /
Please help in this thread locking problem.
Re: Comet Servlet with a reverse proxy in front of it
Hey, I actually got this working so far with nginx(and by so far I mean the random connection errors I was getting with apache2 have not surfaced yet). Ill post the nginx config setup later today when I get home for the benefit of anyone else who wants to do this. On Mon, May 12, 2014 at 3:34 PM, Christopher Schultz ch...@christopherschultz.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Elias, On 5/12/14, 11:20 AM, Elias Kopsiaftis wrote: Is there any way to put a reverse proxy in front of a Comet servlet? I don't believe so. There is work being done on supporting Websocket through mod_proxy but it will likely never support Comet. I tried apache but thats a no go because it uses a single thread per connection, which is not scaleable Only some Apache httpd MPMs are one-thread-per-connection. then I tried nginx, which perhaps I did something wrong in my setup but in the client code, the call to getInputStream never returns, indicating something is wrong. I apologize for not providing too many details and just proposing a general question, but Im hoping there is a general solution to this problem. If you guys needs server specific details I can provide later today when I get home from work. I think that httpd + Tomcat is not going to work, here. I'm not sure about Nginx. If you find something that works, please post back with your findings. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTcSJSAAoJEBzwKT+lPKRYFL8P/jryAJ8epDKL8nioPLV2PAWF 2z2rmNLEtYq4Do+lraq0ttoIhYKkJ0pLyV7/evNDEkjTrtrM2uNEY/BrsVgWelp9 q6RqjYKdFhc/rPmTL+Uu2JHMFfpUfNrVGqAmPwqVU6qwzVrlfujF/z/EHxq13Rib IXQgMJcB2yFx7Boeg2BJWLUhbTeod0aR8RjNKQG6EhiQghnATb6FpKEjHvYkJXCt SGr0NptEM2xVlqTfbsuBDf/ZJQS+bh9h89c0nqZPkuYWkH5ZGbq02am8e4nJOVhl tU3lUQCT5+3wNlXeGVuFdoOlFxl9IJGRU7sx+Sjku2eIXRDTXYvQ3sH4wgjxIomV qwrcN5aBnW/l5slPaXcxA6NNcxcjfOyoCBs+oLzWDA8B1ijh4JY2SsMVrUSSXDVr F4JIVrR+19nXJnFiBVKboU5nN54mzIo3OtKNeI3/dnITXdRX1gft5jmWaI4n59Ci yodCN5l35R9uFurSYWmVPyYv8Bk+aOFgYjqLPJU6d7So3g/fVx8cWubAqzj9Ft8V IYRBUCn/rsDW2nRXJX/vlmgKwsgrDI2rlorIdcRYmj+PCOBykuBsHpVk29Te1Cxy eOh7V05X7VOXzqWnOm2zO43PwCPc98g0eDlB4/l/VDyE/VZ4IXcQifa1f6vZutOH 8mzvN7jAkrMBvsGk48kr =+J8x -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Slow page response time in tomcat 8.0.5
Hi, We are trying to use apache-tomcat 8.0.5 for our web application and have encountered performance issue with respect to the page response time. However, once the application is deployed in 8.0.5 we see a longer delay in response time from the server for the login page itself. With older version of tomcat i.e., tomcat 7.x(7.0.53), 6.x(6.0.18) we did not see such delay. We have 270 custom tags defined across 6 tld files in our application and have the tag pooling feature turned off in conf/web.xml (enablepooling is set to false; since this is a requirement for the application we had to turn it off). We tried to root cause the issue and used fidller tool to monitor the requests and response times. The browsers - both IE 11 and Chrome - were firing the requests quickly but were waiting for the response from the server. We do not know what is the actual cause for this delay. We have captured the traffic for both IE and Chrome and could send them if needed. Could you please advise how to proceed to identify the root cause for this delay? Or could you confirm this as already a known issue? Any help would be highly appreciated. We are not clear to which group the question should be posted, hence sending this email to both users and taglib-users email list. Regards, Hariprasad
Re: Increment XX:PermSize for Tomcat 7 on Windows 2012R2
On May 12, 2014, at 10:54 AM, Lorenzo Fini loreatt...@gmail.com wrote: Hi, I'm trying to increment the PermSize on Tomcat 7. I added -XX:PermSize in the java options launching tomcat7w, causing Tomcat to not load and to give me the following error on Windows Server 2012R2: Unrecognized VM option 'PermSize=256m ‘ Are you perhaps using a JVM that doesn’t have a PermSize like Oracle Java 8? http://java.dzone.com/articles/java-8-permgen-metaspace The same configuration was working on Windows Server 2007. I was able to start the server adding -XX:PermSize=256m inside double quotes, now the question is.. is it the right way? Is it honoring the value? In other words, does it actually increase the size of the permgen? Dan Lorenzo - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: where find documentation
I used this one: http://wiki.metawerx.net/wiki/Web.xml 2014-05-15 16:05 GMT+03:00 Francesco Viscomi fvisc...@gmail.com: Hi all, i'm try to find a documentation that describe every tag inside the web.xml file, but i wasn't able to find anything about that on http://tomcat.apache.org/tomcat-5.5-doc/config/context.html someone can help me? thanks in advance; Francesco Italy
RE: Test Mail, Please Ignore
I sent email below yesterday and never saw it in the list: -Original Message- From: Sebastien Tardif Sent: Wednesday, May 14, 2014 12:59 PM To: 'Tomcat Users List' Subject: Slow execution of Tomcat 7.0.52 due to coarse lock in WebappClassLoader.loadClass I'm having some visible performance issue related to the use of method synchronized loadClass(String name, boolean resolve) in WebappClassLoader I see that the author or least some of the author(s) of the class got the idea in other cases of a more specialize lock that against the entire instance. Should we just lock here using the name of the class we are looking for? My partial threads stack dump: 2014-05-14 12:36:01 Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.45-b01 mixed mode): http-bio-31680-exec-57 - Thread t@124 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) ... http-bio-31680-exec-56 - Thread t@123 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) http-bio-31680-exec-55 - Thread t@122 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) Locked ownable synchronizers: - locked 444b3957 (a java.util.concurrent.locks.ReentrantLock$NonfairSync) http-bio-31680-exec-54 - Thread t@121 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.org.apache.xerces.internal.utils.ObjectFactory.findProviderClass(ObjectFactory.java:358) http-bio-31680-exec-53 - Thread t@120 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) http-bio-31680-exec-52 - Thread t@119 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) http-bio-31680-exec-51 - Thread t@118 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at javax.xml.parsers.FactoryFinder.getProviderClass(FactoryFinder.java:119) http-bio-31680-exec-50 - Thread t@117 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) http-bio-31680-exec-49 - Thread t@116
Re: Best practice to load object in memory.
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Dhaval, On 5/9/14, 2:46 PM, Dhaval Jaiswal wrote: At the time of initializing tomcat apps server, some object/data loading in memory, which is consuming lot of memory of the server. What is the best practice to handle it. Loading of object/data is mandatory in my case. So you have a requirement of loading a log of data into memory at startup, but it's taking a lot of memory. Do I have that right? You either need different requirements (no load on startup, or maybe no need for free memory) or you need more memory. Did you think there was some magic sauce you could add to fix your conflicting requirements? - -chirs -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTdjG3AAoJEBzwKT+lPKRY3QYQAMXSl6lq1RjgQfemo8VRNhCC m2/DkgCcr39GmUOCScHiPsHVynKoGaEyyFpgN0yCt+NoOIR/mesmuVKurjbTKHcg 4geuMdaDNcvvnYF6SDrwWstENTvF/tYseAuUswMjUFTkznsvfPXsIBzJc4s6a8NY kbUX9R6imqxv/xUS7K2RVnddnuNEs9lvKTdTTUll/78jUwPKNKTiqvvP/VAB7viG V7uft8B08OsOUpb5fNb0EjCmmfSJsWsyl2HkON67yix++LEmIfgvIwUo4PVH3MNd 0w/hX/OeAct5NejKfBQOtpdLQfAulwwGK1wNhpL8vUXYQzyRrrYMlNRaZrsMaysv MZsI2sX2RZ8uklxxT8TBfXJPSGW4dPD4rh4+bO22h6ykKDV0NByVa+J2otvXLP0W cReYg48U5eJKWjVqxk7yDV/gXG9jI1WmZCtMKQd2nk9qczIvx2m8bzZRrjqsQC37 nvXgFUYK3bgGH7W74a+bWYbkmsDA4V8PxTkcCBU0/RVOikAYEjx3DTQv2Tye/1zu xfJchQqwLlzn7Cwyl48kLO85xxnbE5xuUeTGUn3sWk0WIeTtBi4ddOKmkLz3YRU5 nVI4rXGjErVJFd6FySFnWHNseO4jl6Eb/vU0wu31Tqf85r1EuM3WQvhbfr3fv6Qw pCBIUaBiixlEJd6DMqIS =it6E -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Slow page response time in tomcat 8.0.5
Hello Hariprasad, you could embed moskito webui into your application, annotate your tags with @Monitor and you would see how long they execute and what is the execution path, which tags are called during an http request how often and how long they execute. You can follow this link for more information on the integration: blog.anotheria.net/msk/the-complete-moskito-integration-guide-step-1/ MoSKito itself: http://www.moskito.org regards Leon On Thu, May 15, 2014 at 7:04 PM, Hariprasad Manchi hariprasad...@gmail.comwrote: Hi, We are trying to use apache-tomcat 8.0.5 for our web application and have encountered performance issue with respect to the page response time. However, once the application is deployed in 8.0.5 we see a longer delay in response time from the server for the login page itself. With older version of tomcat i.e., tomcat 7.x(7.0.53), 6.x(6.0.18) we did not see such delay. We have 270 custom tags defined across 6 tld files in our application and have the tag pooling feature turned off in conf/web.xml (enablepooling is set to false; since this is a requirement for the application we had to turn it off). We tried to root cause the issue and used fidller tool to monitor the requests and response times. The browsers - both IE 11 and Chrome - were firing the requests quickly but were waiting for the response from the server. We do not know what is the actual cause for this delay. We have captured the traffic for both IE and Chrome and could send them if needed. Could you please advise how to proceed to identify the root cause for this delay? Or could you confirm this as already a known issue? Any help would be highly appreciated. We are not clear to which group the question should be posted, hence sending this email to both users and taglib-users email list. Regards, Hariprasad
Re: Application monitoring
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Mark, On 5/14/14, 1:41 PM, Mark Eggers wrote: On Wed, 14 May 2014 12:28:46 -0400, David kerber wrote: I am working on a small Tomcat servlet to monitor other tomcat-based applications running on the same physical machine, and am trying to figure out the best way to communicate between the monitoring app, and the monitored apps. My setup has several tomcat instances of a single application, each running from its own directory, and listening on its own TCP port. So there is no direct communication between the instances. I'm trying to monitor various data about the application, not about tomcat itself or the JVM. So I want to collect such things as the number of requests it has processed, the last data received, etc, and not things like memory and cpu usage. It is my app, so I can (and expect to need to) add methods or servlets to return the information I want to collect. My question is, what is the best way to make the request to get the data? Would URL request from the monitoring app to the monitored app be appropriate, and then parse the response out for display in a browser? If so, what java class is likely to be useful for this communication? I will have all the information needed to connect to the application instance (server, port, etc), but want it to be portable across OS types. Thanks! http://wiki.apache.org/tomcat/FAQ/Monitoring In particular, item 3. Unfortunately, the sample code seems to be missing . . . Which is item 3? I'd be happy to fix whatever is missing. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTdjLiAAoJEBzwKT+lPKRYKK0P/37LoZHwXvDX/jQ/CNXoC85P WpqyFkowFVG5M5XGNhnAvYIBgCuHD0lteur4M0+ovhYJky1LyzoPfK78L+aEAaMG 9MtCKH9wAIz9hNfQdYSw8EBE8pHzQ9xmnqrl2LqVtFkUq1SVQaCNQ7PH/s6dsq0C ZElWzyCv8AcLZRQ0P5cWR4URA4EE26i4v5/WRzs5JddJFF7KcqLfdFsFQRR8EBCf J8nBOJvFhtsbXSLZFeLmzJt4Cpmu1jfaAnkCGu/iJHqlnN6pqsRJMcciYOivfWd6 5krVvOL/7+UbO0gmsu3qCzjbgbKWBlwleaNMRcR+VSUDHaVUVAdVzNIWIqFzAk7V AM07bWOl/pE3+SbOav+ckJN9nhTUeQUvEsmvPSKx78N2CGJvZw080dLzlQu4kxMN TEGvOrhOmxy2SJMQ1VMVRRKxiG/mIpMJDZxB7SxaWvw7Y7STkkgz+rn3fAh0guQa HiGEQSEuoRuD65PojSMXiZUEmT58OZkjYvqckjFkdedRUQSS7QB1FagkRRHB5uZ5 Q4v75AHiyLBCjdHSEJDnpOQbTMPnJEiT3iy8kQZtpH3SoDL4EWg9m9H5eZkfVKaL +XgjDvfIXnZ2PD7I+rVGukkWz/wrv3OBVWwRSacdQZSa96z5JnAH9lwepL+Zm9M0 U7CtgDY30Q22fYqJFP7F =IIse -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
NoClassDefFoundError: org/apache/tomcat/util/descriptor/LocalResolver Error while building project after Tomcat upgrade to 7.0.53 from 7.0.41 !
I am trying to upgrade my Tomcat from 7.0.41 to the latest release 7.0.53 available and the project build failed with below error. java.lang.NoClassDefFoundError: org/apache/tomcat/util/descriptor/LocalResolver at org.apache.jasper.xmlparser.ParserUtils.init(ParserUtils.java:69) at org.apache.jasper.compiler.JspConfig.processWebDotXml(JspConfig.java:94) at org.apache.jasper.compiler.JspConfig.init(JspConfig.java:243) And same error from multiple places also. Is this a known issue? Regards -Utkarsh
Re: Slow execution of Tomcat 7.0.52 due to coarse lock in WebappClassLoader.loadClass
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Sebastien, On 5/14/14, 12:58 PM, Sebastien Tardif wrote: I'm having some visible performance issue related to the use of method synchronized loadClass(String name, boolean resolve) in WebappClassLoader Are you loading huge numbers of (distinct) classes over a long period of time? I wouldn't expect loadClass() to be called very much on a stable application. I see that the author or least some of the author(s) of the class got the idea in other cases of a more specialize lock that against the entire instance. Examples? The loadClass(String,boolean) method pretty much needs to be synchronized from start to finish. Perhaps you are right that the first few lines of he method need not be synchronized, but everything else does because it will modify the internal state of the class loader, which is otherwise not thread-safe. Should we just lock here using the name of the class we are looking for? Do you mean like synchronized(my class's name)? That won't work, as the string object you choose to use as a monitor might not be the one that is being used by other code. Interning strings is quaint, but it still doesn't solve the problem: the internal state of the ClassLoader will be modified and it's dangerous to remove synchronization from it. My partial threads stack dump: 2014-05-14 12:36:01 Full thread dump Java HotSpot(TM) 64-Bit Server VM (20.45-b01 mixed mode): http-bio-31680-exec-57 - Thread t@124 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) ... http-bio-31680-exec-56 - Thread t@123 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) http-bio-31680-exec-55 - Thread t@122 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) Locked ownable synchronizers: - locked 444b3957 (a java.util.concurrent.locks.ReentrantLock$NonfairSync) http-bio-31680-exec-54 - Thread t@121 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.org.apache.xerces.internal.utils.ObjectFactory.findProviderClass(ObjectFactory.java:358) http-bio-31680-exec-53 - Thread t@120 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) http-bio-31680-exec-52 - Thread t@119 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at com.sun.xml.internal.bind.v2.model.nav.ReflectionNavigator.findClass(ReflectionNavigator.java:505) http-bio-31680-exec-51 - Thread t@118 java.lang.Thread.State: BLOCKED at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1605) - - waiting to lock 264d40df (a org.apache.catalina.loader.WebappClassLoader) owned by http-bio-31680-exec-41 t@108 at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1571) at javax.xml.parsers.FactoryFinder.getProviderClass(FactoryFinder.java:119) http-bio-31680-exec-50 - Thread t@117 java.lang.Thread.State: BLOCKED at
Re: destroySubcontext failing with NameNotFoudException
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Ravikiran,
On 5/7/14, 6:12 AM, N, Ravikiran wrote:
Hi all,
I trying to understand under what conditions destroySubContext
fails in tomcat..? I'm trying to destroy Context which I had
created, because of which I'm unable to createContext the next time
I start the service. My code is below :
private Context srvCtx; public void init(ServletConfig
servletconfig) throws ServletException { Context initCtx = new
InitialContext(); srvCtx = initCtx.createSubcontext(myapp); }
public void destroy() { try { if (srvCtx != null) {
srvCtx.destroySubcontext(GS_CTX_NAME); srvCtx.close(); } }
catch(NamingException e) { log_.error(new
LogQueueMessageStructure(Couldn't unbind the context,3016),e); }
}
What is wrong with my code and also how can I debug this issue..?
Please help me out..!!
Well, first off: your code has insane indentation. That could be it.
An error message or stack trace would be nice.
- -chris
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Re: Application monitoring
On 5/15/2014 9:57 AM, Leon Rosenberg wrote: Hello David, I will not ask you why you are reinventing the wheel (ok, I lied, why are you reinventing the wheel?). You have multiple options available: 1) You could use jmx and publish your information as jmx beans. 2) You could use rmi between you 'collector' and the target apps. 3) You could use simple http (preferably json), but in that case I would advice to setup a separate collector for it. For any of the above options there are numbers of classes and utilities you can use. For example jersey as jax-rs implementation is perfect for exchange of json data, for rmi you could use DistributeMe ( http://www.distributeme.org) or spring-remote, and so on. But yet again, why reinventing the wheel? I'm not trying to. Your responses above are the exact kinds of information I was looking for: how to communicate between my app that displays the information, and the monitored apps. Now I just need to look into how to use jmx, rmi and json to figure out which will serve my needs the best. My goal here is to be able to click on a browser bookmark and after logging in, have all the information from these dozen apps displayed in an organized table, so I don't have to do anything more than scroll down the page to see them all. They are all OS-agnostic, I presume? Thanks! regards Leon On Wed, May 14, 2014 at 6:28 PM, David kerber dcker...@verizon.net wrote: I am working on a small Tomcat servlet to monitor other tomcat-based applications running on the same physical machine, and am trying to figure out the best way to communicate between the monitoring app, and the monitored apps. My setup has several tomcat instances of a single application, each running from its own directory, and listening on its own TCP port. So there is no direct communication between the instances. I'm trying to monitor various data about the application, not about tomcat itself or the JVM. So I want to collect such things as the number of requests it has processed, the last data received, etc, and not things like memory and cpu usage. It is my app, so I can (and expect to need to) add methods or servlets to return the information I want to collect. My question is, what is the best way to make the request to get the data? Would URL request from the monitoring app to the monitored app be appropriate, and then parse the response out for display in a browser? If so, what java class is likely to be useful for this communication? I will have all the information needed to connect to the application instance (server, port, etc), but want it to be portable across OS types. Thanks! - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
NoClassDefFoundError: org/apache/tomcat/util/descriptor/LocalResolver Error while building project after Tomcat upgrade to 7.0.53 from 7.0.41 !
I am trying to upgrade my Tomcat from 7.0.41 to the latest release 7.0.53 available and the project build failed with below error. java.lang.NoClassDefFoundError: org/apache/tomcat/util/descriptor/LocalResolver at org.apache.jasper.xmlparser.ParserUtils.init(ParserUtils.java:69) at org.apache.jasper.compiler.JspConfig.processWebDotXml(JspConfig.java:94) at org.apache.jasper.compiler.JspConfig.init(JspConfig.java:243) And same error from multiple places also. Is this a known issue? Regards -Utkarsh
Re: tomcat6 thread locked
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
devoss,
Exact Tomcat version? OS and version? Java version?
On 5/15/14, 12:00 PM, devoss ind wrote:
On 7 May 2014 17:37, devoss ind devoss@gmail.com wrote:
Hi,
Am using tomcat 6, java6 in production environment to run our
web
application. We found that recently, cpu in top is showing 100%
nearly. Then we dig into each thread cpu usage by -H option in top.
We found only one thread is taking 100%usage and identified the
thread using thread dump. The thread dump for that particular
thread which is using 100% usage is as follows...
http-8080-exec-3687 daemon prio=10 tid=0x7336f400 nid=0x41a1
runnable
[0x619ad000..0x619ade30]
java.lang.Thread.State: RUNNABLE at
org.apache.coyote.http11.InternalNioOutputBuffer.addToBB(InternalNioOutputBuffer.java:616)
- - locked 0x967b22f0 (a
org.apache.coyote.http11.InternalNioOutputBuffer)
at
org.apache.coyote.http11.InternalNioOutputBuffer.commit(InternalNioOutputBuffer.java:608)
at
org.apache.coyote.http11.Http11NioProcessor.action(Http11NioProcessor.java:1024)
at org.apache.coyote.Response.action(Response.java:183)
at org.apache.coyote.Response.sendHeaders(Response.java:379) at
org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:305)
at
org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer.java:288)
at
org.apache.catalina.connector.Response.flushBuffer(Response.java:548)
at
org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:345)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:144)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at
org.apache.coyote.http11.Http11NioProcessor.process(Http11NioProcessor.java:879)
at
org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:719)
at
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:2080)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
We can see that above thread is locked due to some problem in
NIO.
We have verified in tomcat manager also for such thread. We found
that a
particular thread is taking 14140517ms time and the request in that
line is of POST request which is not related to our application.
That particular thread is not releasing till we restart tomcat.
This is happening frequently.
Please help me to find out the root cause of this problem. How to
avoid
restarts.
Our server.xml connector configuration is as follows...
Connector port=${http.port}
protocol=org.apache.coyote.http11.Http11NioProtocol
connectionTimeout=5000 acceptCount=1500 maxThreads=1
redirectPort=8443 /
Please help in this thread locking problem.
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Re: Compiling mod_jk in CentOs release 6.5
There's no reason to read some how to guide on the Internet for how to build mod_jk: the building steps come with the source package, and they are up-to-date instead of some guy's blog that requires root privileges to run properly. Chris. completely agree. But what you can do when if those up-to-date steps are are not helping you out? Also, some guy's step definitely helped me achieve waht i wanted to (building and settingup mod_jk) out and thats what is important I guess than who has written it or how he advises to do it. Anyway..it was just a suggestion. no advise Thanks, Shailesh On Wed, May 7, 2014 at 10:14 PM, Christopher Schultz ch...@christopherschultz.net wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA256 To whom it may concern, On 5/3/14, 4:10 AM, J Java wrote: /configure --with-apxs=/usr/lib64/httpd/modules whenever I run above I keep getting this: configure: error: You must specify a valid --with-apxs path Any ideas why I am getting this error? - --with-apxs needs to be given the full path to the apxs program (in httpd-devel package). So, if it's in /usr/lib64/httpd/modules (which it shouldn't be), then you need to say: $ ./configure --with-apxs=/usr/lib64/httpd/modules/apxs On my Amazon Linux system (which is RHEL-compatible, which should obviously be fairly similar to CentOS), apxs is in /usr/sbin/apxs PFB link which gives some shell scrpt to compile mod_jk on CENTOS. I am not a shell script expert but what I found in this script is using below line (which includes path to aspx) to configure aspx: http://www.cafe-encounter.net/p1086/build-mod_jk-for-centos ./configure --with-apxs=/usr/sbin/apxs So why dont you try to use this path instead of /usr/lib64/httpd/modules/apxs There's no reason to read some how to guide on the Internet for how to build mod_jk: the building steps come with the source package, and they are up-to-date instead of some guy's blog that requires root privileges to run properly. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTamLQAAoJEBzwKT+lPKRY56EQAJPWpOlbcW4t/ptzwM6pAf0/ QaIfRGu65/RFRn8TY7so94y2Mg56dkdOOm4+zfnwhOnSjAHjmRnt4yaX70G4KGdq ZtjXQ+SgvgU6Vj4R4gumca7KTrpdpPQVmAzvX6ZWIKopUbGXUMr4C1amr0a9oeuI 9ayCZQZTLEkRYcB5nmgmxAV2KwNuzUEWdA/QGSNmwM3vHQqbz33s9tMFgiODKEE3 aM2IQnNQOu9gDn8pkY7ir4942JM+cm5dzdGZV0gAHhOo2DbAi/JwaJ8c3rbLo09p UE7V6Axw5ZVXvvzgh19pYykMUniTNgoxygK2XfbEs32h2WEF+6MHZqBjCgXIWWbK zBSVk+I4MWuMbi0OV428vEkJm8rfun3a5bui2llbeUclbfnl/urZOIE9mqVj/R9s +pvSpWJJ4gMyQ+bcKLxpRiJM+9+cuf4IWW+9KoNmqYU4lv5X+AIXrbrSwsn5yeyH d/R0lsXzAz9ULxXCc+CcA1P6OWEQJ8iOCWRR9CHuUEmMrhUNks4N4lytAmYHB1f2 UuI5Bv9UR88Q9xrfmnCYm0TDBPNi25JcC0/UAOBnZkQDeqSVa9wgxk/AmnJh+KZe R0oC7d5YZ5e67u9n4VtX6S9GgHmUNSebgyFEOfqtyX3WOX19hERSYnxaHAKmeouZ sAi3QVaKv9n5VXipqk2u =tNvP -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Tomcat dependency on application server
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Randhir, On 5/15/14, 3:17 AM, Randhir Singh wrote: Hi, We have JBoss as the application server Tomcat as the web server in our production developmental setup which is on Red Hat Linux 5.X. We have tomcat 6.X. My query is that if I need to restart tomcat, do I need to restart JBoss Tomcat both or just restarting Tomcat would be enough. I am asking this query because I had killed the tomcat process using kill -9 and while restarting tomcat it was not starting but when I killed JBoss tomcat and then restarted, Tomcat was up. I hope my query is clear whether Tomcat is dependent on JBoss. I'm fairly sure that there is only a single JVM for JBoss/Tomcat. If you killed one, you've killed the other. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTdnUaAAoJEBzwKT+lPKRYnH8QALfeHn4XVXB6KANb0hmAPEL3 7pNRaUW0AypQQjujzr7X4DKv3MOnMwWfIaiVcazNbtC7j+W3Mi6khksZIq1cz0At o9K0CDdJhAg5be9a68T7E5ko4mdy+rjX2ZsuX2LDdp5wyQaYWEXRWd3+hfBL2Gk7 D+225vxnMUeB9gHLaVUQ4k/3TOZvO/DYT9TCnxOlviP1+QEek5chN6a9XDJpQKpg O/EVBudYmDMLu9QKbOJJ5jomKUUa/VPsjhwz4O32+2Zok5VWLIrct5joF3r2ej+p 5RfHLnijRcCX5QkZOAYM9mdvFuFb1+lNAUGKPJwZU47SI7delyJZwxqGJYmo495e Q2nGMqepgXlQhOtwuTMdSh9gFV6LqJeaWcW6ZpyMNXbkNSSRSIy3hgcZqRycsSUa dvBRg6j57MMhNiCDx9IVtxF+OqKbiiLNdb9tJRArSXdoSx3a1EYbRbmye3xWbrUv SYadbr14KBqTXxaK2qJBb7E3j/fn1J5NKEARQbM/ML5Q/0TaNIRMlmjbOt2yccYG pNRtC8FRkHWaN3eYtpM0vMNCZ/Cl/atzr3StoN/EX5bWjba6eaaXBaeKdG3FypyY jL0nQu7P0Ir1ASrcxlQeN5snLmI2G4AoFjenOhEsCDDQKixSiryzZRR6ZVqCPZ/k Bi3P3ZPYqngg8oU6s6b6 =bJS6 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Application monitoring
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 David, On 5/16/14, 11:12 AM, David kerber wrote: On 5/15/2014 9:57 AM, Leon Rosenberg wrote: Hello David, I will not ask you why you are reinventing the wheel (ok, I lied, why are you reinventing the wheel?). You have multiple options available: 1) You could use jmx and publish your information as jmx beans. 2) You could use rmi between you 'collector' and the target apps. 3) You could use simple http (preferably json), but in that case I would advice to setup a separate collector for it. For any of the above options there are numbers of classes and utilities you can use. For example jersey as jax-rs implementation is perfect for exchange of json data, for rmi you could use DistributeMe ( http://www.distributeme.org) or spring-remote, and so on. But yet again, why reinventing the wheel? I'm not trying to. Your responses above are the exact kinds of information I was looking for: how to communicate between my app that displays the information, and the monitored apps. Now I just need to look into how to use jmx, rmi and json to figure out which will serve my needs the best. My goal here is to be able to click on a browser bookmark and after logging in, have all the information from these dozen apps displayed in an organized table, so I don't have to do anything more than scroll down the page to see them all. They are all OS-agnostic, I presume? I've done a presentation about how to do this with JMX. Since you are using a persistent server that is already running Java, you could maintain a persistent JMX connection with each of the servers to monitor, and so some of the tools mentioned within are probably less relevant, but here it is: http://people.apache.org/~schultz/ApacheCon%20NA%202014/Monitoring%20Apache%20Tomcat%20with%20JMX.pdf That will show you what information you can get from Tomcat (e.g. request counts) as well as how to publish whatever information you want to make available from your own web application. If you write something cool, consider sticking it up on the wiki or something. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTdjOAAAoJEBzwKT+lPKRYBLQP/i4n8gy+7vE2ydGd302Qh9RY ZXFjLUJZt4HiBm3OYQLGOMb3mSgcyYE32CFwmgNPUv5zrJdIlkBgymPBh1JN4fXk KjWpX6uFKBzKVVa+p0IWCwQ0dGq1xvE01g2UcitivUiwV3O1FlXdOn/qOGtWvLqS Q02VB0NrUxE3Y+HUGA6pufthhApyFQ81Vl+XUy7suh2k42WsITBed4nQBot5RE5u NjaZS4pLYoL/t1q0Q2pFo+z/INZAjs1FsX750sMaOfLfwVDI7c4Hp1zjO74CpWfV zOoSNQtcC96QYSILL90eBs2qT/lpc+/HPK6KFZJy6U2H29E83VKrUG58jjT5Khjv JDPSVz1aidFKJqt3mrrw2FwiewwlVo1z39MFLtGgc/z12BnAwrwdnsE2j0teC0kZ hq9+GxUUebLb7N3jyKHlRUpWHTEtAsfoYMppYEV+x1IFSKvEwuIv/xDHHGqq+5jx 27BOA3xPc7QTjCnpBhqU8CQFuohp+zKeo8qU+MxEkOgBYHCx7xYPwSWYDg1w/hMF a30g126eh9aMMrMeCc0NuhPwKe1pescko6IgLgvshKMBNTM7vO4kp7CBaqkY52bw roQxvNIKk5S8ki9biHtmTOLYTQjqZ2byzKM4bgI16aiQsSK13S4iVu7jxeq6IBc0 C0R7koNee6WgzEETFX0B =DTAc -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Slow page response time in tomcat 8.0.5
On 15/05/2014 18:04, Hariprasad Manchi wrote: Hi, We are trying to use apache-tomcat 8.0.5 for our web application and have encountered performance issue with respect to the page response time. However, once the application is deployed in 8.0.5 we see a longer delay in response time from the server for the login page itself. With older version of tomcat i.e., tomcat 7.x(7.0.53), 6.x(6.0.18) we did not see such delay. We have 270 custom tags defined across 6 tld files in our application and have the tag pooling feature turned off in conf/web.xml (enablepooling is set to false; since this is a requirement for the application we had to turn it off). We tried to root cause the issue and used fidller tool to monitor the requests and response times. The browsers - both IE 11 and Chrome - were firing the requests quickly but were waiting for the response from the server. We do not know what is the actual cause for this delay. We have captured the traffic for both IE and Chrome and could send them if needed. Could you please advise how to proceed to identify the root cause for this delay? Or could you confirm this as already a known issue? Any help would be highly appreciated. We are not clear to which group the question should be posted, hence sending this email to both users and taglib-users email list. Get a profiler. Profile what your application is doing. Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: where find documentation
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Francesco, On 5/16/14, 10:01 AM, Арсений Зинченко wrote: I used this one: http://wiki.metawerx.net/wiki/Web.xml 2014-05-15 16:05 GMT+03:00 Francesco Viscomi fvisc...@gmail.com: Hi all, i'm try to find a documentation that describe every tag inside the web.xml file, but i wasn't able to find anything about that on http://tomcat.apache.org/tomcat-5.5-doc/config/context.html someone can help me? thanks in advance; Francesco Italy There's always the servlet specification itself. There is a reference at the end that covers most -- but not all - of the elements. There is also a significant amount of documentation in the XML schemas. You should check those out, too. - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTdnSmAAoJEBzwKT+lPKRY0koP/142leN00V+960gu7HMIb0ke tX1hnY7WK0CGdjRi+YC9LvEqmyxn9EThb3MpTn/0eQOIMEOqBYSWJd3mXbEvdZ9P U9Zy/FlWsdUYoJ3oJ9VdrI5OyvYrvl0JwqcToTBXlhFk1ukLkBOjANmqr+/egNYA rjvuuWpoe10OvH1rGfWch7khGnLFCRYgiVy+eBvYojmglcla/2/Jfs8Nyy0At1jk pVOi7K4qwBm6FCZqCcyWJmcVj7p8+j1P6HFRLi7i8B5IM4Rd7aluEyoGISnmwLy4 dGLWkoxlbw2ONAM9tLFPNBSmE3qXu613/rwlVlxadDJcWjUFBb2tERKQyrxN66VJ AEjle3BIjS4YY0Xs4QxVq+8ec/givdDHVwHyGUDrNbBMHH6oJIVSR9IXRTMtDroj I/Xk6ft1sIVYxOGIQpbmcsevYYvupdS1A9n4Q8WOm+tSonrj4YJPfD4JUXUo7S0Y nCShmCqfFCqBZF2bk7k4iMr+b31tdUDutEKI92Ol6r16nLuNFxNIhjMSLopvjXlj 9S9RCkXMmpUxs7WhkmYitJqz3nQ4/cCKLQH5ofXXh3zu9vba0Cdjsd6EFrsdzMTF yuZbzExW0zcnLziWpRfl/tpaqC4Y+3wUljJ4vBqcRfz9O/fkd4YVObkYzFqO4045 QssBF1LlFn9vTTcu+wEk =P0L2 -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: where find documentation
On 5/15/2014 8:05 AM, Francesco Viscomi wrote: Hi all, i'm try to find a documentation that describe every tag inside the web.xml file, but i wasn't able to find anything about that on http://tomcat.apache.org/tomcat-5.5-doc/config/context.html someone can help me? thanks in advance; Francesco Italy Which version of Tomcat are you using? Your link above is for 5.5. Go to: http://tomcat.apache.org/ for links to documentation for other versions of Tomcat. web.xml is documented in the servlet specifications. Links to servlet specifications may be found on the Tomcat wiki: http://wiki.apache.org/tomcat/Specifications Hope that helps. -Terence Bandoian - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Compiling mod_jk in CentOs release 6.5
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Shailesh, On 5/16/14, 1:57 PM, J Java wrote: There's no reason to read some how to guide on the Internet for how to build mod_jk: the building steps come with the source package, and they are up-to-date instead of some guy's blog that requires root privileges to run properly. Chris. completely agree. But what you can do when if those up-to-date steps are are not helping you out? Ask here? You can get a pretty good response time with a well-asked question. Also, some guy's step definitely helped me achieve waht i wanted to (building and settingup mod_jk) out and thats what is important I guess than who has written it or how he advises to do it. Anyway..it was just a suggestion. no advise - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTdnV0AAoJEBzwKT+lPKRYn8YQAJEjTkkZloe8wfyAsUOKqX7h nfKPfzdRh6vN62931gsd+DwAvgSuxk627qORaYZpHQ/R3qRcxV3on4Mt42lCwnS3 FcXPZZtq3FMfZlzvbusSTEdf2cyh3HlBzGZvI4UyLKE26O1CoGTrpR0GynxSEomw NEdgZ/Q7ObX2G5eUvD70Yo/ZiKQCbBZ5cpaExtKWJ8wP7S++EBKZr23NVX/E8SOs bWefpZiGD+IDBsE2ShhTMR3u+CQAu99MCL/bey2BcPkQGFI7unmtDCUTYmrTi42Z IMWyKjhbla80s6Bj5pr+Os4lTCPwACTLIPA7WDkX14NiLVBZf+ecvIs/54EV3XA0 P3xlqIEnMt/01aQmP87Ku3wTwxuwsoALXyqx3sg9Bo2BU/xW/GVjk7q0AU3Uw58N pJgoFGOF/a8NEJY4o1Evnot2jjxLfm8GIiKdYCM/eW7Bt+wb6pV+wARMnzR2zeD0 wRsgHcJ5k2YfdN5ULTmZbcLsDDWC63aSbI7PVYFG/7kvRw9HJv9z2Lu6kMM85kJm 5Z8ZTQjyCttOx4pNuMrQg4uHnze6fjpKIQ7pkMJj5AvVS+fBUVd3qhMqmPVeWTdu djry54uB8Qb7qa69W+LE5tCj/eBkqbGnSlTfjj41r85n72egNjhSB3RD4le8LiVr z9h+gkk4VdrE0T379pr8 =om6w -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Comet Servlet with a reverse proxy in front of it
Here is my config for using nginx as a reverse proxy in front of tomcat.
Seems to work so far. Just replace the question marks with your
configuration
server {
listen 80;
server_name ??;
root /var/lib/tomcat7/webapps/?.
location / {
proxy_http_version 1.1;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_pass http://127.0.0.1:8085/;
}
On Thu, May 15, 2014 at 1:04 PM, Elias Kopsiaftis yemi...@gmail.com wrote:
Hey,
I actually got this working so far with nginx(and by so far I mean the
random connection errors I was getting with apache2 have not surfaced yet).
Ill post the nginx config setup later today when I get home for the
benefit of anyone else who wants to do this.
On Mon, May 12, 2014 at 3:34 PM, Christopher Schultz
ch...@christopherschultz.net wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Elias,
On 5/12/14, 11:20 AM, Elias Kopsiaftis wrote:
Is there any way to put a reverse proxy in front of a Comet
servlet?
I don't believe so. There is work being done on supporting Websocket
through mod_proxy but it will likely never support Comet.
I tried apache but thats a no go because it uses a single thread
per connection, which is not scaleable
Only some Apache httpd MPMs are one-thread-per-connection.
then I tried nginx, which perhaps I did something wrong in my
setup but in the client code, the call to getInputStream never
returns, indicating something is wrong. I apologize for not
providing too many details and just proposing a general question,
but Im hoping there is a general solution to this problem. If you
guys needs server specific details I can provide later today when I
get home from work.
I think that httpd + Tomcat is not going to work, here. I'm not sure
about Nginx. If you find something that works, please post back with
your findings.
- -chris
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Re: Slow execution of Tomcat 7.0.52 due to coarse lock in WebappClassLoader.loadClass
On 14/05/2014 17:58, Sebastien Tardif wrote: I'm having some visible performance issue related to the use of method synchronized loadClass(String name, boolean resolve) in WebappClassLoader I see that the author or least some of the author(s) of the class got the idea in other cases of a more specialize lock that against the entire instance. Should we just lock here using the name of the class we are looking for? No. It is far from being that simple. http://svn.apache.org/viewvc?view=revisionrevision=927565 Mark - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Re: Session fixation Tomcat 7
On 5/8/2014 8:56 PM, Akash Jain wrote: Hi, I am trying to resolve session fixation issue with tomcat 7.0.52 We have a Spring MVC application running on it, and the Auth method is provided by another application which writes cookie, and we use the cookie value to check whether the user is valid or not. My application URL patterns are / - Home page /login - Redirect to another application to ask user to authenticate /myaccess/user*** -- All authenticated URL's Context path= docBase=myapplication sessionCookieName=mycookiename sessionCookieDomain=application.mydomain.com sessionCookiePath=/ As I cannot use org.apache.catalina.authenticator.FormAuthenticator here. How can i prevent the session fixation ? Thanks. Do all communications use SSL or TLS? -Terence Bandoian - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
