12:57 p.m.
Sandip Bhoi [http://community.jboss.org/people/sandip.bhoi] created the discussion
"Growing NioProcessor Thread Number in Human Tasks"
To view the discussion, visit: http://community.jboss.org/message/638007#638007
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I am exploring the jBPM5.x and wanted to implement some work flows which mainly has Human
iteractions and hence created Human Tasks.
If I keep on executing perticular process definition, two NioProcessor Threads are getting
created and remain in memory though I complete the Task and even complete entire process.
e.g If my process definition has 5 Tasks and when I complete entire process, I can see 10
Threads got created and remains forever.
Can any one tell why such thing is happening. I do not know why these threads are getting
created and remain dangling.
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7:01 p.m.
New subject: [jBPM] - Re: Growing NioProcessor Thread Number in Human Tasks
Demian Calcaprina [http://community.jboss.org/people/calca] created the discussion
"Re: Growing NioProcessor Thread Number in Human Tasks"
To view the discussion, visit: http://community.jboss.org/message/638046#638046
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I don't know why it is happening, I think it could be a bug in human task mina
connector. Could you make some thread dump to see these threads and what are they doing?.
I recommend you using HornetQ connector, instead of mina one.
Regards,
Demian
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9:16 a.m.
New subject: [jBPM] - Re: Growing NioProcessor Thread Number in Human Tasks
Sandip Bhoi [http://community.jboss.org/people/sandip.bhoi] created the discussion
"Re: Growing NioProcessor Thread Number in Human Tasks"
To view the discussion, visit: http://community.jboss.org/message/638184#638184
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Thanks Demian,
Please find the Thread dump
Thread Dump _____________57 - "http-bio-8080"-exec-9
Thread Dump _____________63 - pool-22-thread-1
Thread Dump _____________31 - H2 File Lock Watchdog
C:\Project\POC\jbpm-installer\eclipse\JPADroolsFlow.lock.db
Thread Dump _____________49 - "http-bio-8080"-exec-4
Thread Dump _____________50 - "http-bio-8080"-exec-5
Thread Dump _____________61 - pool-20-thread-1
Thread Dump _____________20 - H2 File Lock Watchdog
C:\Project\POC\jbpm-installer\eclipse\droolsflow.lock.db
Thread Dump _____________13 - pool-1-thread-1
Thread Dump _____________23 - Thread-11
Thread Dump _____________3 - Finalizer
Thread Dump _____________36 - NioProcessor-4
Thread Dump _____________5 - Attach Listener
Thread Dump _____________9 - GC Daemon
Thread Dump _____________54 - NioProcessor-3
Thread Dump _____________55 - pool-16-thread-1
Thread Dump _____________39 - "http-bio-8080"-AsyncTimeout
Thread Dump _____________40 - "http-bio-8080"-exec-1
Thread Dump _____________52 - "http-bio-8080"-exec-7
Thread Dump _____________48 - NioProcessor-7
Thread Dump _____________1 - main
Thread Dump _____________64 - NioProcessor-19
Thread Dump _____________42 - "ajp-bio-8009"-AsyncTimeout
Thread Dump _____________15 - pool-5-thread-1
Thread Dump _____________18 - H2 TCP Server (tcp://10.136.4.198:9092)
Thread Dump _____________21 - H2 Log Writer DROOLSFLOW
Thread Dump _____________4 - Signal Dispatcher
Thread Dump _____________32 - H2 Log Writer JPADROOLSFLOW
Thread Dump _____________24 - bitronix-scheduler
Thread Dump _____________56 - NioProcessor-10
Thread Dump _____________14 - pool-3-thread-1
Thread Dump _____________51 - "http-bio-8080"-exec-6
Thread Dump _____________25 - NioSocketAcceptor-1
Thread Dump _____________60 - "http-bio-8080"-exec-10
Thread Dump _____________41 - "ajp-bio-8009"-Acceptor-0
Thread Dump _____________37 - ContainerBackgroundProcessor[StandardEngine[Catalina]]
Thread Dump _____________53 - "http-bio-8080"-exec-8
Thread Dump _____________58 - pool-18-thread-1
Thread Dump _____________45 - "http-bio-8080"-exec-3
Thread Dump _____________46 - NioProcessor-2
Thread Dump _____________59 - NioProcessor-13
Thread Dump _____________10 - bitronix-disk-force-batcher
Thread Dump _____________38 - "http-bio-8080"-Acceptor-0
Thread Dump _____________62 - NioProcessor-16
Thread Dump _____________2 - Reference Handler
Thread Dump _____________44 - "http-bio-8080"-exec-2
Thread Dump _____________30 - H2 TCP Server (tcp://10.136.4.198:9092) thread
Printed by Code given below
/**
*
*/
private static void printThreadDump() {
Map threadMap = Thread.getAllStackTraces();
for (Iterator threadMapIT = threadMap.keySet().iterator(); threadMapIT.hasNext();)
{
Thread th = (Thread) threadMapIT.next();
//if (th.getName().contains("NioProcessor")) {
System.out.println("\nThread Dump _____________" + th.getId() +
" - " + th.getName());
//}
}
}
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Sandip Bhoi