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All,
One of dev instances this morning is screaming because I have hundreds
of active sessions. I checked, and it looks like the background
processor thread for the context is not running, therefore no sessions
are expiring.
Tomcat 7.0.52, Debian Linux x64, Oracle Java 1.7.0_55
Here are the still-running threads:
"catalina-exec-946"
"Attach Listener"
"MySQL Statement Cancellation Timer"
"catalina-exec-338"
"catalina-exec-337"
"catalina-exec-5"
"catalina-exec-4"
"catalina-exec-3"
"http-nio-127.0.0.1-8217-Acceptor-0"
"http-nio-127.0.0.1-8217-ClientPoller-1"
"http-nio-127.0.0.1-8217-ClientPoller-0"
"ajp-bio-8215-AsyncTimeout"
"ajp-bio-8215-Acceptor-0"
"Memcached IO over {MemcachedConnection to localhost/127.0.0.1:11211}"
"Abandoned connection cleanup thread"
"Thread-3"
"NioBlockingSelector.BlockPoller-1"
"GC Daemon"
"Service Thread"
"C2 CompilerThread1"
"C2 CompilerThread0"
"Signal Dispatcher"
"Finalizer"
"Reference Handler"
"main"
"VM Thread"
"GC task thread#0 (ParallelGC)"
"GC task thread#1 (ParallelGC)"
"VM Periodic Task Thread"
I tried invoking "backgroundProcess" on my Manager bean via JMX but it
didn't seem to actually clean anything up. Is there any hope of
recovery without bouncing the web application?
Also, it would be nice to get a notification if the thread is dying
due to some exception. I searched-though catalina.out and found
nothing relevant. Any suggestions?
Thanks,
- -chris
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