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From Rainer Jung <rainer.j...@kippdata.de>
Subject Re: Tomcat not releasing threads on Solaris 10
Date Thu, 04 Aug 2011 18:00:25 GMT
On 04.08.2011 19:44, Dante Bell wrote:
> Hi Igor & Chuck,
> 
> I don't think I specified, but they are running prefork 2.2 (updated
> blog to show this:
> http://wp.me/plPvN-ai) So cachesize has been deprecated and is now
> connection_pool_size. The notes state that when running Apache prefork,
> this value must be 1 !
> 
> I've asked them to try using the parallel Garbage Collector because the
> stack trace shows many threads blocking (waiting) and from some entries
> on Oracle/Java forums, similar stack dumps are related to GC blocking.
> 
> Link to Forum Discussion:
> http://forums.oracle.com/forums/thread.jspa?threadID=2238488
> 
> Now, the dump we have isn't exactly like the ones in Oracle/Java forums,
> but I can't think of anything else to try :( They need to turn this over
> to their customer at the end of the month and, frankly, I'm running out
> of ideas.

If you suspect GC problems, then activate the JVM GC log and check that.

Regards,

Rainer


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