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. Danté On 08/03/2011 10:28 PM, Igor Cicimov wrote: > Maybe try to use "cachesize" ajp13 property in worker.properties together > with "cache_timeout" to limit the apache thread count towards tomcat. > " If cachesize is not set, the connection cache support is disabled." > So sounds like cache_timeout doesn't have any effect if cachesize isn't set. > > Igor > > On Thu, Aug 4, 2011 at 11:58 AM, Dante Bell <dantepasqu...@cocoanet.us>wrote: > >> I put the cleansed information on my blog (which got totally messed up >> with the latest WP upgrade, but that's a different issue!!) >> >> Click on this url for config files and for the thread dump: >> http://wp.me/plPvN-ai >> >> I've check bugzilla and this issue seems to be different to the other >> bugs when there was a thread issue. >> >> Thanks! >> >> On 08/03/2011 10:44 AM, Caldarale, Charles R wrote: >>>> From: Dante Bell [mailto:dantepasqu...@cocoanet.us] >>>> Subject: Re: Tomcat not releasing threads on Solaris 10 >>>> Seems that all threads are waiting: >>>> java.lang.Thread.State: WAITING (on object monitor) >>> It's the rest of the trace for each thread that would be interesting. >>> >>>> Size of compressed stack dump is 20k. Is that OK to attach >>>> so someone can help look at it? >>> No, the list server strips attachments. Post it on some publicly >> accessible web site and send us the link. >>> Also post your server.xml, preferably with comments removed and passwords >> obfuscated. >>> (And find out what version of Tomcat and JVM you're using.) >>> >>> - Chuck >>> >>> >>> THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY >> MATERIAL and is thus for use only by the intended recipient. If you received >> this in error, please contact the sender and delete the e-mail and its >> attachments from all computers. >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >>> For additional commands, e-mail: users-h...@tomcat.apache.org >>> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org >> For additional commands, e-mail: users-h...@tomcat.apache.org >> >> --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
