Hello, We run a setup with 3 Apache servers with mod_jk (2.2.6 / 1.2.26) and 10 tomcat instances running on 5 servers (tomcat 5.5.26 / RHEL4).
We used the combination of connectionTimeout & connection_pool_timeout, both set to 5min (connectionTimeout="300000", connection_pool_timeout=300). But we still saw a lot of KeepAlive connections on the tomcat side staying open (average thread count 400 per tomcat instance). worker.properties: worker.server1.type=ajp13 worker.server1.host=xxx.xxx.xxx.xxx worker.server1.port=8009 worker.server1.socket_keepalive=1 worker.server1.socket_timeout=15 worker.server1.connect_timeout=10000 worker.server1.prepost_timeout=8000 worker.server1.lbfactor=1 worker.server1.connection_pool_timeout=300 server.xml: <Connector port="8009" maxThreads="750" minSpareThreads="25" maxSpareThreads="75" connectionTimeout="300000" This week we started to use JkOptions +DisableReuse and our current thread busy count dropped to an average of 8. So we will stick with the DisableReuse and find another use for 2 out of 5 tomcat servers. Regards, Hubert de Heer -----Original Message----- From: Bernardo Cabezas [mailto:ber...@bergantells.net] Sent: 12 January 2009 13:01 To: users@tomcat.apache.org Subject: RE: Tomcat running out of threads. Hello, According to tomcat documentation, JkOptions +DisableReuse has some performance penalty, because opens new connection for each request. In my case, issue was solved by setting the param: connectionTimeout on the ajp13 <connector /> entry on tomcat's server.xml Also look at docs for firstReadTimeout parameter. Now mod_jk is using a pool of connectors, but tomcat expires old threads on the pool so issue was solved. Regards, Bernardo. Mark Thomas-18 wrote: > >> From: Hari Prasad [mailto:ursha...@yahoo.co.in] >> >> hi.. i too have the same issue.. >> did anyone find solution? > > 1. JkOptions +DisableReuse > 2. Use correct timeouts and CPing/CPong > > I'd go with option 1. YMMV. > > Mark > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > -- View this message in context: http://www.nabble.com/Tomcat-running-out-of-threads.-tp16812001p21413171 .html Sent from the Tomcat - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
