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From Jordan Michaels <jor...@viviotech.net>
Subject Re: mod_jk and sticky sessions
Date Tue, 15 Feb 2011 20:49:22 GMT

I figured this out.

I was not hitting a JSP page, so the session variable wasn't getting 
refreshed.

It's always the little things that throw us off!

-Jordan


On 02/15/2011 10:07 AM, Jordan Michaels wrote:
> Hello mod_jk Experts,
>
> I'm having trouble getting sticky sessions to work as expected.
>
> I believe I've identified the problem in the logs:
> -----------
> [Mon Feb 14 15:28:02.333 2011] [4774:4041131776] [debug]
> get_most_suitable_worker::jk_lb_worker.c (942): searching worker for
> partial sessionid A245FE42FA0C746808A575CDEE88ADB2
> -----------
>
> ... the jvmRoute is not being attached to the session ID.
>
> My server.xml file contains a jvmRoute attribute:
> -----------
> <Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat2">
> -----------
>
> And my workers.properties should be named appropriately, but I admit
> I've played with my naming quite a bit.
>
> My worker.properties is as follows:
> -----------
> worker.list = lbworker,status
>
> worker.tomcat1.domain=tomcat2
> worker.tomcat1.port=8009
> worker.tomcat1.host=localhost
> worker.tomcat1.type=ajp13
> worker.tomcat1.lbfactor=1
>
> worker.tomcat2.domain=tomcat2
> worker.tomcat2.port=8009
> worker.tomcat2.host=[name of other VM]
> worker.tomcat2.type=ajp13
> worker.tomcat2.lbfactor=1
>
> worker.lbworker.type=lb
> worker.lbworker.balance_workers=tomcat1,tomcat2
> worker.lbworker.sticky_session=True
> worker.lbworker.sticky_session_force=False
>
> worker.status.type=status
> -----------
>
> Load balancing works great between the two instances on the two VM's,
> but sticky sessions don't work because the jvmRoute doesn't get appended
> to the session ID. What might I be missing here? I'm not sure where to
> look next. Any direction anyone could provide would be extremely
> appreciated.
>
> mod_jk/1.2.28
> Apache Tomcat/6.0.29
> Apache/2.2.16 (web server)
> JRE 1.6.0_23-b05
>
> Thank you in advance for any direction anyone could offer!
>
> -Jordan
>
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