Re: Tomcat stops responding

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]>:
>
> 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?
>
>