2014-04-15 14:49 GMT+04:00 Randhir Singh <randhir.si...@sterlite.com>: > There is 1 finding. We normally monitor the tomcat port using jconsole as- > > jconsole 10.101.17.79:8891 > > As per my initial query, our application hangs and we need to restart > JBoss & Tomcat. I have observed that during this time the port 8891 does > not respond as the command, > > jconsole 10.101.17.79:8891 > > does not give any console for monitoring. > > Requesting an update so that the root cause analysis of this issue can be > found out. >
An often cause for such behaviour is an out-of-memory condition. If you encountered OutOfMemoryError: PermGen error, then JVM will not be able to load any new classes, with obvious fatal consequences. Did you monitor the PermGen memory pool size, or just memory as a whole? If an OOME causes a thread death, it is usually not logged to logging frameworks, but a message in written to System.err (by ThreadGroup,uncaughtException(..)). 2014-04-15 17:40 GMT+04:00 Shanti Suresh <sha...@umich.edu>: > > Have you considered taking a thread dump of the JVM processes, I forget? > +1 --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
