Re: Tomcat stops responding

Benjamin,

I tried the Kill -QUIT <pid> But it didn't work, process kept running 
with no output. I'm running Red Hat ES4. Confused

Daryl

Benjamin Papez wrote:
> Hello Daryl,
>  
> we had similar problems, because Jahia 4.1 was running out of database 
> connections. There were also some deadlock issues. Most of these 
> problems will be fixed with the forthcoming Jahia 4.2 release, which 
> will be out very soon. Meanwhile you could try to reserve enough DB 
> connections. What you could also do is to create a thread dump ( |kill 
> -QUIT /process_id/|) of the tomcat java process, when such a situation 
> occurs. This will help determining, what the threads are doing and why 
> they are not finishing their work.
>  
> Greetings,
> Benjamin
>  
> 2007/2/6, Daryl Gerlach <[email protected] 
> <mailto:[email protected]>>:
>
>     We are having issues running Jahia 4.1.1 in production. We recently
>     upgraded our servers to Red Hat ES 4 and added apache 2.0.52 with
>     mod_jk
>     1.2.20 to front  end the whole thing. Under load the server stops
>     responding to requests. Here are the settings for workers.properties,
>     server.xml, and httpd.conf
>
>     worker.properties
>     ============
>     worker.list=consumer,builder
>
>     # Set properties for consumer (ajp13)
>     worker.consumer.type=ajp13
>     worker.consumer.host=localhost
>     worker.consumer.port=8019
>
>     worker.builder.type=ajp13
>     worker.builder.host=localhost
>     worker.builder.port=8009
>
>
>     httpd.conf
>     =======
>     <IfModule mod_jk.c>
>        JkWorkersFile conf/workers.properties
>        JkShmFile    logs/mod_jk.shm
>        JkLogFile    logs/mod_jk.log
>        JkLogLevel   info
>        JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
>     </IfModule>
>
>     <VirtualHost *:80>
>     ...
>        <IfModule mod_jk.c>
>            # Send everything for context /examples to worker named
>     worker1
>     (ajp13)
>            JkMount  /jahia/* builder
>            JkMount  /pdfgenerator/* builder
>        </IfModule>
>     </VirtualHost>
>
>
>     server.xml
>     =======
>     <Connector className="org.apache.ajp.tomcat4.Ajp13Connector "
>                   port="8009" minProcessors="5" maxProcessors="75"
>                   acceptCount="10" debug="0"/>
>
>     What settings are other people using in production?
>
>

-- 
Daryl Gerlach
Consultant
Collective Intelligence, Inc.
Phone: 717-545-9234
Fax: 717-545-9232
Cell: 717-649-3499