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From Mani EZZAT <mani.ez...@arisem.com>
Subject TimeLimitedCollector hang on, VM process doesn't die (TOMCAT)
Date Fri, 02 Oct 2009 08:41:47 GMT
Hello everyone.
I'm using solrJ for an application deployed in Tomcat (6.x). It's base 
on lucene 2.9
when I use the catalina stop command, the VM doesn't die.

The problem seems to be the TimeLimitedCollector thread.
Here a jstack trace of the JVM (I get the same thing with jconsole too) :


Attaching to process ID 32430, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 1.5.0_17-b04
Thread 32430: (state = BLOCKED)


Thread 32530: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Interpreted frame)
 - org.apache.lucene.search.TimeLimitedCollector$TimerThread.run() 
@bci=15, line=79 (Interpreted frame)


Thread 32481: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park() @bci=5, line=118 
(Interpreted frame)
 - 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await() 
@bci=41, line=1841 (Interpreted frame)
 - java.util.concurrent.LinkedBlockingQueue.take() @bci=29, line=359 
(Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=47, line=470 
(Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=18, 
line=674 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread 32480: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park() @bci=5, line=118 
(Interpreted frame)
 - 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await() 
@bci=41, line=1841 (Interpreted frame)
 - java.util.concurrent.LinkedBlockingQueue.take() @bci=29, line=359 
(Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor.getTask() @bci=47, line=470 
(Interpreted frame)
 - java.util.concurrent.ThreadPoolExecutor$Worker.run() @bci=18, 
line=674 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread 32470: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=120 
(Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove() @bci=2, line=136 (Interpreted 
frame)
 - org.apache.commons.io.FileCleaner$Reaper.run() @bci=8, line=206 
(Interpreted frame)


Thread 32468: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Worker.await() @bci=8, 
line=416 (Interpreted frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Worker.run() @bci=11, line=442 
(Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread 32466: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Worker.await() @bci=8, 
line=416 (Interpreted frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Worker.run() @bci=11, line=442 
(Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread 32462: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
 - 
org.apache.jk.common.ChannelSocket.accept(org.apache.jk.core.MsgContext) 
@bci=20, line=300 (Interpreted frame)
 - org.apache.jk.common.ChannelSocket.acceptConnections() @bci=72, 
line=660 (Interpreted frame)
 - 
org.apache.jk.common.ChannelSocket$SocketAcceptor.runIt(java.lang.Object[]) 
@bci=4, line=870 (Interpreted frame)
 - org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run() 
@bci=167, line=690 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread 32458: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Interpreted frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run() @bci=23, 
line=302 (Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread 32444: (state = IN_NATIVE)
 - java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) @bci=0 
(Interpreted frame)
 - java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=7, line=384 
(Interpreted frame)
 - java.net.ServerSocket.implAccept(java.net.Socket) @bci=50, line=450 
(Interpreted frame)
 - java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)
 - sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept() 
@bci=1, line=31 (Interpreted frame)
 - sun.rmi.transport.tcp.TCPTransport.run() @bci=59, line=340 
(Interpreted frame)
 - java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread 32443: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
 - java.util.TimerThread.mainLoop() @bci=28, line=483 (Interpreted frame)
 - java.util.TimerThread.run() @bci=1, line=462 (Interpreted frame)


Thread 32438: (state = BLOCKED)


Thread 32437: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=120 
(Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove() @bci=2, line=136 (Interpreted 
frame)
 - java.lang.ref.Finalizer$FinalizerThread.run() @bci=3, line=159 
(Interpreted frame)


Thread 32436: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
 - java.lang.ref.Reference$ReferenceHandler.run() @bci=46, line=116 
(Interpreted frame)


When I manually kill the lucene thread, the jvm exit.

I'm using java 1.5.0.17 and debian lenny.

I'm not sure if it's a Solr or Lucene problem...

Best regards.


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