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From PJ Delsh <pjdelsh...@hotmail.com>
Subject RE: Tomcat 6.0.32 stops responding
Date Sun, 10 Jul 2011 20:56:16 GMT

Thank you Konstantin and Chris.  

I have setup Apache 2.2.19 through mod_jk 1.2.21
To enable compression on the SSL traffic, Apache and Tomcat are setup in a reverse proxy.

1- Should I take the thread dumps now, or when Tomcat is in the 'non-responding' state?
2- Is it a good idea to make the jump from 6.0.32 to 7.0.16?  I know our app works in 7.
3- If I was to hire a consultant to look into this, can you recommend one?   pjdelsh007@hotmail



> Date: Sun, 10 Jul 2011 10:36:01 -0400
> From: chris@christopherschultz.net
> To: users@tomcat.apache.org
> Subject: Re: Tomcat 6.0.32 stops responding
> 
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> 
> Konstantin,
> 
> On 7/8/2011 5:00 PM, Konstantin Kolinko wrote:
> > You have to take three thread dumps with small interval between
> > them, to see what Tomcat is actually doing.  (How to make dumps ->
> > see FAQ).
> 
> +1
> 
> > One usual cause is when you have infinite timeout on you database 
> > connection pool.  So threads are waiting for your DB.  (If you are
> > not recycling sql objects properly, you may run out of them easily).
> 
> PJ, there have been some recent problems discovered in the NIO connector
> that cause request processing threads to be lost from the pool, but I
> believe all of those were fixed by 6.0.32.
> 
> If you post back, please include your <Connector> configuration and tell
> us which connector you are intending to use (unless specifically
> configured, you can't tell the difference between an AJP and non-AJP
> connector, for instance).
> 
> Thanks,
> - -chris
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