Madhuri Patwardhan wrote: > Do you know anything about recovery options?
No. You could try reading the docs and/or the source code. Mark > > Thanks, > Madhuri > > --- On Mon, 8/3/09, Mark Thomas <ma...@apache.org> wrote: > >> From: Mark Thomas <ma...@apache.org> >> Subject: Re: what exactly happens when timeouts are set and tomcat has >> outofmemory errors. >> To: "Tomcat Users List" <users@tomcat.apache.org> >> Date: Monday, August 3, 2009, 6:49 PM >> Madhuri Patwardhan wrote: >>> Hi, >>> >>> Can somebody go over the details of what exactly >> happens when tomcat instance has outOfmemory errors and >> there are following timeouts set in a loadbalancer worker >> config. >>> This is my understanding. >>> >>> ping_mode=A, ping_timeout=10000, reply_timeout=60000 >> and recorver_options=3 >>> If the timeouts are set as above then CPing/Cpong test >> for connect and prepost will work. When a new real request >> is sent to this tomcat instance, it should hit reply_timeout >> because it has outofmemory errors. >> >> That depends on the state of the JVM. It might appear to >> work normally, >> it might fail to respond at all. Once on OOM has occurred >> Tomcat has to >> be assumed to be in an unknown state and should be >> restarted. I have >> seen Tomcat instances apparently recover from an OOM. It >> all depends why >> the OOM occurred and what Tomcat was doing at the time. >> >>> Then depending on no. of retries set (it is default, >> for me so 2), this instance will be tried once again. Second >> time also it should not get reply within reply_timeout and >> at that point it should be marked in "ERR" state. >>> However, I don't see that. I don't see it being marked >> in "ERR" state. The state is still "OK" inspite of this >> tomcat instance having outofmemory errors. Could somebody >> explain what am I missing? >> >> In short, you are incorrectly assuming that once an OOM has >> occurred >> Tomcat will no longer respond to requests. >> >> Mark >> >> >> >> >> --------------------------------------------------------------------- >> 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
