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From Mark Miller <markrmil...@gmail.com>
Subject Re: TimeLimitedCollector hang on, VM process doesn't die (TOMCAT)
Date Fri, 02 Oct 2009 12:58:47 GMT
That thread will only be stopped if its interrupted. So it would appear
there is a not a path that leads to it being interrupted ... why that is
would be the next question ...

-- 
- Mark

http://www.lucidimagination.com



Mani EZZAT wrote:
> 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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