Thread dump findings
sreekanth.munarai Dec 16, 2015 5:04 AMHi All,
As a part of slowness issue,have taken few thread dumps and below are our findings:
pool-10-thread-4484" - Thread t@19701
java.lang.Thread.State: TIMED_WAITING
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <74063568> (a java.util.concurrent.SynchronousQueue$TransferStack)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:196)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:424)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:323)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:874)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:945)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:662)
Locked ownable synchronizers:
- None
"Keep-Alive-Timer" - Thread t@19699
java.lang.Thread.State: TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at sun.net.www.http.KeepAliveCache.run(KeepAliveCache.java:149)
at java.lang.Thread.run(Thread.java:662)
Locked ownable synchronizers:
- None
"pool-5-thread-7" - Thread t@19698
java.lang.Thread.State: RUNNABLE
at sun.management.ThreadImpl.dumpThreads0(Native Method)
at sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:433)
at sun.reflect.GeneratedMethodAccessor13546.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:167)
at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:96)
at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:33)
at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:120)
at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:262)
at javax.management.StandardMBean.invoke(StandardMBean.java:391)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:836)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:761)
at org.jboss.as.jmx.PluggableMBeanServerImpl$TcclMBeanServer.invoke(PluggableMBeanServerImpl.java:498)
at org.jboss.as.jmx.PluggableMBeanServerImpl.invoke(PluggableMBeanServerImpl.java:246)
at org.jboss.remotingjmx.protocol.v1.ServerProxy$InvokeHandler.handle(ServerProxy.java:1034)
at org.jboss.remotingjmx.protocol.v1.ServerProxy$MessageReciever$1.run(ServerProxy.java:215)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
"pool-10-thread-4482" - Thread t@19687
java.lang.Thread.State: TIMED_WAITING
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <74063568> (a java.util.concurrent.SynchronousQueue$TransferStack)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:196)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:424)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:323)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:874)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:945)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:662)
Locked ownable synchronizers:
- None
"Thread-989 (HornetQ-client-global-threads-264730128)" - Thread t@19675
java.lang.Thread.State: TIMED_WAITING
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <18597a50> (a java.util.concurrent.SynchronousQueue$TransferStack)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:196)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:424)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:323)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:874)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:945)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:662)
Locked ownable synchronizers:
- None
"ajp-/10.197.158.129:8009-98" - Thread t@19402
java.lang.Thread.State: RUNNABLE
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(SocketInputStream.java:129)
at org.apache.coyote.ajp.AjpProcessor.read(AjpProcessor.java:1131)
at org.apache.coyote.ajp.AjpProcessor.readMessage(AjpProcessor.java:1213)
at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:451)
at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:453)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931)
at java.lang.Thread.run(Thread.java:662)
All the remaining threads have the same findings. Have googled about the above data but no luck. Is this normal or required any special actions? Please advise us.
Thanks,
Sreekanth