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Tomcat 7在無連接啓動時的CPU使用率過高

2013-01-24 68 views
1

我們在CentOS 6.3上運行Tomcat 7.0.34（完全修補），並且服務器啓動後，所有的應用服務器的CPU都會猛增。 Tomcat沒有連接。看起來有一些CPU內核被我們的webapp中運行的東西完全消耗掉了。Tomcat 7在無連接啓動時的CPU使用率過高

我不能爲我的生活找出什麼可能導致這個問題。有沒有人見過這個？

我應該提到這隻發生在CentOS盒子上。我的Windows tomcat服務器不顯示運行相同應用程序的此行爲。

相關技術

我們使用Tomcat的會話複製，複製的EHCache和HornetQ的JMS的。

的Java版本測試

JDK 1.7.0更新10和JDK 1.6.0更新38

殺-3運行線程

"http-apr-8080-Acceptor-1" daemon prio=10 tid=0x00007f2598183000 nid=0x46b9 runnable [0x00007f2500685000] 
     java.lang.Thread.State: RUNNABLE 
      at org.apache.tomcat.jni.Socket.accept(Native Method) 
      at org.apache.tomcat.util.net.AprEndpoint$Acceptor.run(AprEndpoint.java:1013) 
      at java.lang.Thread.run(Thread.java:722) 

    "http-apr-8080-Acceptor-0" daemon prio=10 tid=0x00007f2598181800 nid=0x46b8 runnable [0x00007f2500786000] 
     java.lang.Thread.State: RUNNABLE 
      at org.apache.tomcat.jni.Socket.accept(Native Method) 
      at org.apache.tomcat.util.net.AprEndpoint$Acceptor.run(AprEndpoint.java:1013) 
      at java.lang.Thread.run(Thread.java:722) 

    "New I/O boss #26" daemon prio=10 tid=0x00007f253d4fb000 nid=0x462f runnable [0x00007f250c49c000] 
     java.lang.Thread.State: RUNNABLE 
      at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) 
      at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228) 
      at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81) 
      at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87) 
      - locked <0x00000006ab002568> (a sun.nio.ch.Util$2) 
      - locked <0x00000006ab002558> (a java.util.Collections$UnmodifiableSet) 
      - locked <0x00000006ab0024d0> (a sun.nio.ch.EPollSelectorImpl) 
      at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98) 
      at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:64) 
      at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:409) 
      at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:206) 
      at org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:41) 
      at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) 
      at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) 
      at org.jboss.netty.util.VirtualExecutorService$ChildExecutorRunnable.run(VirtualExecutorService.java:175) 
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
      at java.lang.Thread.run(Thread.java:722) 

    "New I/O worker #25" daemon prio=10 tid=0x00007f253d4e4000 nid=0x462e runnable [0x00007f250c59d000] 
     java.lang.Thread.State: RUNNABLE 
      at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) 
      at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228) 
      at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81) 
      at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87) 
      - locked <0x00000006aefbcab8> (a sun.nio.ch.Util$2) 
      - locked <0x00000006aefbcaa8> (a java.util.Collections$UnmodifiableSet) 
      - locked <0x00000006aefbca60> (a sun.nio.ch.EPollSelectorImpl) 
      at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98) 
      at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:64) 
      at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:409) 
      at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:206) 
      at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:88) 
      at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) 
      at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) 
      at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) 
      at org.jboss.netty.util.VirtualExecutorService$ChildExecutorRunnable.run(VirtualExecutorService.java:175) 
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
      at java.lang.Thread.run(Thread.java:722) 

    "New I/O worker #24" daemon prio=10 tid=0x00007f253d4b9000 nid=0x462d runnable [0x00007f250c69e000] 
     java.lang.Thread.State: RUNNABLE 
      at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) 
      at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228) 
      at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81) 
      at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87) 
      - locked <0x00000006ab002c70> (a sun.nio.ch.Util$2) 
      - locked <0x00000006ab002c60> (a java.util.Collections$UnmodifiableSet) 
      - locked <0x00000006ab002bd8> (a sun.nio.ch.EPollSelectorImpl) 
      at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98) 
      at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:64) 
      at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:409) 
      at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:206) 
      at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:88) 
      at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) 
      at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) 
      at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) 
      at org.jboss.netty.util.VirtualExecutorService$ChildExecutorRunnable.run(VirtualExecutorService.java:175) 
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
      at java.lang.Thread.run(Thread.java:722) 

... ABOUT 20 MORE NIO WORKERS IN RUNNABLE STATE... 

"New I/O worker #2" prio=10 tid=0x00007f253d054000 nid=0x4616 runnable [0x00007f250ddb5000] 
    java.lang.Thread.State: RUNNABLE 
     at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) 
     at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228) 
     at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81) 
     at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87) 
     - locked <0x00000006adaa7070> (a sun.nio.ch.Util$2) 
     - locked <0x00000006adaa7060> (a java.util.Collections$UnmodifiableSet) 
     - locked <0x00000006adaa6fd8> (a sun.nio.ch.EPollSelectorImpl) 
     at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98) 
     at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:64) 
     at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:409) 
     at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:206) 
     at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:88) 
     at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) 
     at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) 
     at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) 
     at org.jboss.netty.util.VirtualExecutorService$ChildExecutorRunnable.run(VirtualExecutorService.java:175) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
     at java.lang.Thread.run(Thread.java:722) 

"New I/O worker #1" prio=10 tid=0x00007f253d053000 nid=0x4615 runnable [0x00007f250deb6000] 
    java.lang.Thread.State: RUNNABLE 
     at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) 
     at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228) 
     at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81) 
     at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87) 
     - locked <0x00000006adaa7bc0> (a sun.nio.ch.Util$2) 
     - locked <0x00000006adaa7bb0> (a java.util.Collections$UnmodifiableSet) 
     - locked <0x00000006adaa7b28> (a sun.nio.ch.EPollSelectorImpl) 
     at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98) 
     at org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:64) 
     at org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:409) 
     at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:206) 
     at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:88) 
     at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) 
     at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) 
     at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) 
     at org.jboss.netty.util.VirtualExecutorService$ChildExecutorRunnable.run(VirtualExecutorService.java:175) 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) 
     at java.lang.Thread.run(Thread.java:722) 

"NamingBootstrap Pool(1)-1" daemon prio=10 tid=0x00007f253c4f8800 nid=0x45fc runnable [0x00007f25842a3000] 
    java.lang.Thread.State: RUNNABLE 
     at java.net.PlainSocketImpl.socketAccept(Native Method) 
     at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) 
     at java.net.ServerSocket.implAccept(ServerSocket.java:522) 
     at java.net.ServerSocket.accept(ServerSocket.java:490) 
     at org.jnp.server.Main$AcceptHandler.run(Main.java:481) 
     at org.jboss.util.threadpool.RunnableTaskWrapper.run(RunnableTaskWrapper.java:148) 
     at EDU.oswego.cs.dl.util.concurrent.PooledExecutor$Worker.run(Unknown Source) 
     at java.lang.Thread.run(Thread.java:722) 

"RMI TCP Accept-1098" daemon prio=10 tid=0x00007f253c4f4800 nid=0x45fb runnable [0x00007f25843a4000] 
    java.lang.Thread.State: RUNNABLE 
     at java.net.PlainSocketImpl.socketAccept(Native Method) 
     at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) 
     at java.net.ServerSocket.implAccept(ServerSocket.java:522) 
     at java.net.ServerSocket.accept(ServerSocket.java:490) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:387) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:359) 
     at java.lang.Thread.run(Thread.java:722) 

"RMI TCP Accept-0" daemon prio=10 tid=0x00007f253cc2d800 nid=0x45e6 runnable [0x00007f25859b9000] 
    java.lang.Thread.State: RUNNABLE 
     at java.net.PlainSocketImpl.socketAccept(Native Method) 
     at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) 
     at java.net.ServerSocket.implAccept(ServerSocket.java:522) 
     at java.net.ServerSocket.accept(ServerSocket.java:490) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:387) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:359) 
     at java.lang.Thread.run(Thread.java:722) 

"RMI TCP Accept-40001" daemon prio=10 tid=0x00007f253cc16000 nid=0x45da runnable [0x00007f25865c5000] 
    java.lang.Thread.State: RUNNABLE 
     at java.net.PlainSocketImpl.socketAccept(Native Method) 
     at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) 
     at java.net.ServerSocket.implAccept(ServerSocket.java:522) 
     at java.net.ServerSocket.accept(ServerSocket.java:490) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:387) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:359) 
     at java.lang.Thread.run(Thread.java:722) 

"Multicast Heartbeat Receiver Thread" daemon prio=10 tid=0x00007f253cc18000 nid=0x45d8 runnable [0x00007f25867c7000] 
    java.lang.Thread.State: RUNNABLE 
     at java.net.PlainDatagramSocketImpl.receive0(Native Method) 
     - locked <0x00000006ab145b28> (a java.net.PlainDatagramSocketImpl) 
     at java.net.AbstractPlainDatagramSocketImpl.receive(AbstractPlainDatagramSocketImpl.java:145) 
     - locked <0x00000006ab145b28> (a java.net.PlainDatagramSocketImpl) 
     at java.net.DatagramSocket.receive(DatagramSocket.java:786) 
     - locked <0x000000067ffd9240> (a java.net.DatagramPacket) 
     - locked <0x00000006ab1459f0> (a java.net.MulticastSocket) 
     at net.sf.ehcache.distribution.MulticastKeepaliveHeartbeatReceiver$MulticastReceiverThread.run(MulticastKeepaliveHeartbeatReceiver.java:124) 

"Tribes-MembershipReceiver" daemon prio=10 tid=0x00007f259895c800 nid=0x45d0 runnable [0x00007f258733a000] 
    java.lang.Thread.State: RUNNABLE 
     at java.net.PlainDatagramSocketImpl.receive0(Native Method) 
     - locked <0x00000006b8163208> (a java.net.PlainDatagramSocketImpl) 
     at java.net.AbstractPlainDatagramSocketImpl.receive(AbstractPlainDatagramSocketImpl.java:145) 
     - locked <0x00000006b8163208> (a java.net.PlainDatagramSocketImpl) 
     at java.net.DatagramSocket.receive(DatagramSocket.java:786) 
     - locked <0x00000006b8158768> (a java.net.DatagramPacket) 
     - locked <0x00000006b7b4fc30> (a java.net.MulticastSocket) 
     at org.apache.catalina.tribes.membership.McastServiceImpl.receive(McastServiceImpl.java:340) 
     at org.apache.catalina.tribes.membership.McastServiceImpl$ReceiverThread.run(McastServiceImpl.java:534) 

"NioReceiver" daemon prio=10 tid=0x00007f259892f000 nid=0x45cf runnable [0x00007f258743b000] 
    java.lang.Thread.State: RUNNABLE 
     at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) 
     at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228) 
     at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81) 
     at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87) 
     - locked <0x00000006b8155008> (a sun.nio.ch.Util$2) 
     - locked <0x00000006b8155020> (a java.util.Collections$UnmodifiableSet) 
     - locked <0x00000006b78650a8> (a sun.nio.ch.EPollSelectorImpl) 
     at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98) 
     at org.apache.catalina.tribes.transport.nio.NioReceiver.listen(NioReceiver.java:281) 
     at org.apache.catalina.tribes.transport.nio.NioReceiver.run(NioReceiver.java:420) 
     at java.lang.Thread.run(Thread.java:722) 

"NioReceiver" daemon prio=10 tid=0x00007f259892f000 nid=0x45cf runnable [0x00007f258743b000] 
    java.lang.Thread.State: RUNNABLE 
     at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method) 
     at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:228) 
     at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:81) 
     at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87) 
     - locked <0x00000006b8155008> (a sun.nio.ch.Util$2) 
     - locked <0x00000006b8155020> (a java.util.Collections$UnmodifiableSet) 
     - locked <0x00000006b78650a8> (a sun.nio.ch.EPollSelectorImpl) 
     at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98) 
     at org.apache.catalina.tribes.transport.nio.NioReceiver.listen(NioReceiver.java:281) 
     at org.apache.catalina.tribes.transport.nio.NioReceiver.run(NioReceiver.java:420) 
     at java.lang.Thread.run(Thread.java:722) 

"RMI TCP Accept-0" daemon prio=10 tid=0x00007f25982e0800 nid=0x45cc runnable [0x00007f258c7a6000] 
    java.lang.Thread.State: RUNNABLE 
     at java.net.PlainSocketImpl.socketAccept(Native Method) 
     at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) 
     at java.net.ServerSocket.implAccept(ServerSocket.java:522) 
     at java.net.ServerSocket.accept(ServerSocket.java:490) 
     at sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:52) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:387) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:359) 
     at java.lang.Thread.run(Thread.java:722) 

"RMI TCP Accept-9004" daemon prio=10 tid=0x00007f25982cb000 nid=0x45cb runnable [0x00007f258c8a7000] 
    java.lang.Thread.State: RUNNABLE 
     at java.net.PlainSocketImpl.socketAccept(Native Method) 
     at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) 
     at java.net.ServerSocket.implAccept(ServerSocket.java:522) 
     at java.net.ServerSocket.accept(ServerSocket.java:490) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:387) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:359) 
     at java.lang.Thread.run(Thread.java:722) 

"RMI TCP Accept-0" daemon prio=10 tid=0x00007f25982a7000 nid=0x45ca runnable [0x00007f258c9a8000] 
    java.lang.Thread.State: RUNNABLE 
     at java.net.PlainSocketImpl.socketAccept(Native Method) 
     at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) 
     at java.net.ServerSocket.implAccept(ServerSocket.java:522) 
     at java.net.ServerSocket.accept(ServerSocket.java:490) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:387) 
     at sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:359) 
     at java.lang.Thread.run(Thread.java:722) 

"Service Thread" daemon prio=10 tid=0x00007f259817a800 nid=0x45c9 runnable [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE 

"C2 CompilerThread1" daemon prio=10 tid=0x00007f2598178000 nid=0x45c8 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE 

"C2 CompilerThread0" daemon prio=10 tid=0x00007f2598175800 nid=0x45c7 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE 

"Signal Dispatcher" daemon prio=10 tid=0x00007f2598173800 nid=0x45c6 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE 

"Surrogate Locker Thread (Concurrent GC)" daemon prio=10 tid=0x00007f2598171800 nid=0x45c5 waiting on condition [0x0000000000000000] 
    java.lang.Thread.State: RUNNABLE 

"VM Thread" prio=10 tid=0x00007f259811c000 nid=0x45c2 runnable 

"Gang worker#0 (Parallel GC Threads)" prio=10 tid=0x00007f2598012000 nid=0x45bd runnable 

"Gang worker#1 (Parallel GC Threads)" prio=10 tid=0x00007f2598014000 nid=0x45be runnable 

"Gang worker#2 (Parallel GC Threads)" prio=10 tid=0x00007f2598015800 nid=0x45bf runnable 

"Gang worker#3 (Parallel GC Threads)" prio=10 tid=0x00007f2598017800 nid=0x45c0 runnable 

"Concurrent Mark-Sweep GC Thread" prio=10 tid=0x00007f25980a6800 nid=0x45c1 runnable 
"VM Periodic Task Thread" prio=10 tid=0x00007f25982e3000 nid=0x45cd waiting on condition

所有的這對於剛啓動的服務器來說似乎非常繁忙，沒有複製撒尿rs，並且還沒有接受任何請求。

想法？

來源

2013-01-24 Nobody

回答

2

它看起來像JVM一樣是做網絡相關的東西。我想嘗試下，看看他們是否發現任何線索：

  • 使用數據包監測，看看是否有你的以太網或環回呼入/呼出的網絡流量。

  • 使用strace的，看看有什麼系統調用的JVM正在

  • 檢查Tomcat的日誌文件。作爲實驗更改日誌記錄配置，以便您可以看到所有的DEBUG日誌記錄。

  • 檢查系統日誌，包括安全日誌（如果啓用了SELinux。）

您也可以嘗試調整tomcat的CONFIGS不使用APR，看看是否有什麼差別。

來源

2013-01-24 03:20:05

+0

所有這些線程都處於空閒狀態（被阻止）。我沒有看到任何原因... 也許有本地的東西......我也會檢查4月份的設置。 我在HornetQ上看不到任何東西在BTW –

+0

謝謝斯蒂芬，使用你的一些建議加上jvisualvm，我已經能夠將問題縮小到Netty/HornetQ。看來HornetQ正在吃掉CPU，至少我知道現在在哪裏看。 – Nobody

+0

@Clebert使用jvisualvm，我能夠看到有2個NIO工作線程正在吃掉CPU核心。他們追溯到Netty/HornetQ。所以我決定把我所有的用戶數量減少到少數，CPU使用率隨之下降。問題是，這些消費者實際上並沒有做任何事情，只能檢查空的隊列。你有什麼建議可以解決這個問題嗎？ – Nobody

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