java – JVM消耗所有CPU,大多数线程都是BLOCKED. JVM错误？

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昨天晚上,一台服务器(JBoss 5.1GA,Java(TM)SE Runtime Environment(build 1.6.0_20-b02))
在VMWare的 Linux VM中运行的Java HotSpot(TM)64位服务器虚拟机)突然开始使用100％的cpu.该应用程序是一个运行Seam的相当典型的J2EE业务应用程序,没有什么特别的.当时的负载极低.

我设法得到一个线程转储,在进程被杀死并重新启动之前(应用程序必须可用). JStack在其死锁检测中有例外;除了大多数线程都被阻塞.

这是JVM的错误？我以前没看过.重新启动后,一切正常,就像在应用程序在该服务器上使用的几个月(定期更新)一样.

感谢任何建议.

稍微编辑的线程转储(适合SO的职位大小限制)在下面.我删除了几个相同的线程(从JBoss / Seam内的各种线程池),只剩下堆栈跟踪的顶线.

编辑：全线程转储在http://pastie.org/1083984

[~]$jstack -F 13553
Attaching to process ID 13553,please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 11.3-b02
Deadlock Detection:

java.lang.NullPointerException
        at sun.jvm.hotspot.oops.InstanceKlass.computeSubtypeOf(InstanceKlass.java:426)
        at sun.jvm.hotspot.oops.Klass.isSubtypeOf(Klass.java:137)
        at sun.jvm.hotspot.oops.Oop.isA(Oop.java:92)
        at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:93)
        at sun.jvm.hotspot.runtime.DeadlockDetector.print(DeadlockDetector.java:39)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:52)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:60)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:221)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:86)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at sun.tools.jstack.JStack.runJStackTool(JStack.java:118)
        at sun.tools.jstack.JStack.main(JStack.java:84)
Can't print deadlocks:null
Thread 26208: (state = BLOCKED)


Thread 25250: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park(java.lang.Object) @bci=14,line=158 (Interpreted frame)

Thread 25249: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 21240: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=485 (Interpreted frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Worker.await() @bci=8,line=416 (Interpreted frame)

Thread 21140: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=416 (Interpreted frame)

Thread 21139: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=416 (Interpreted frame)

Thread 21138: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=416 (Interpreted frame)

Thread 19380: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 19377: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 19361: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,long) @bci=0 (Interpreted frame)

Thread 19343: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 19317: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 18995: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=485 (Interpreted frame)

Thread 18986: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=485 (Interpreted frame)

Thread 17659: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 17658: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 17653: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 17631: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 14977: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 14796: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 14609: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 14437: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 14248: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 14232: (state = BLOCKED)
 - java.util.Arrays.copyOf(char[],int) @bci=1,line=2882 (Compiled frame)
 - java.lang.AbstractStringBuilder.expandCapacity(int) @bci=33,line=100 (Compiled frame)

Thread 14040: (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)

Thread 13858: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove(long) @bci=44,line=116 (Compiled frame)

Thread 13815: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=416 (Interpreted frame)

 Thread 13814: (state = IN_NATIVE)
 - java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) @bci=0 (Interpreted frame)

Thread 13813: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=416 (Interpreted frame)


Thread 13812: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.utilities.AssertionFailure: range check
        at sun.jvm.hotspot.utilities.Assert.that(Assert.java:32)
        at sun.jvm.hotspot.runtime.RegisterMap.<init>(RegisterMap.java:109)
        at sun.jvm.hotspot.runtime.x86.X86RegisterMap.<init>(X86RegisterMap.java:39)
        at sun.jvm.hotspot.runtime.x86.X86RegisterMap.clone(X86RegisterMap.java:43)
        at sun.jvm.hotspot.runtime.VFrame.<init>(VFrame.java:37)
        at sun.jvm.hotspot.runtime.JavaVFrame.<init>(JavaVFrame.java:45)
        at sun.jvm.hotspot.runtime.CompiledVFrame.<init>(CompiledVFrame.java:43)
        at sun.jvm.hotspot.runtime.VFrame.newVFrame(VFrame.java:77)
        at sun.jvm.hotspot.runtime.VFrame.sender(VFrame.java:129)
        at sun.jvm.hotspot.runtime.VFrame.javaSender(VFrame.java:146)
        at sun.jvm.hotspot.runtime.JavaThread.getLastJavaVFrameDbg(JavaThread.java:231)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:76)
        at sun.jvm.hotspot.tools.StackTrace.run(StackTrace.java:45)
        at sun.jvm.hotspot.tools.JStack.run(JStack.java:60)
        at sun.jvm.hotspot.tools.Tool.start(Tool.java:221)
        at sun.jvm.hotspot.tools.JStack.main(JStack.java:86)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at sun.tools.jstack.JStack.runJStackTool(JStack.java:118)
        at sun.tools.jstack.JStack.main(JStack.java:84)


Thread 13811: (state = IN_NATIVE)
 - java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) @bci=0 (Interpreted frame)

Thread 13810: (state = IN_NATIVE)
 - java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) @bci=0 (Interpreted frame)

Thread 13809: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=485 (Interpreted frame)
 - org.jboss.jms.client.container.ClientConsumer.getMessage(long) @bci=71,line=866 (Interpreted frame)

Thread 13808: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=866 (Interpreted frame)

Thread 13807: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=485 (Interpreted frame)
 - org.jboss.bootstrap.AbstractServerImpl$LifeThread.run() @bci=11,line=866 (Interpreted frame)

Thread 13806: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 13805: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 13804: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.util.TimerThread.mainLoop() @bci=201,line=509 (Interpreted frame)

Thread 13803: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.util.TimerThread.mainLoop() @bci=201,line=509 (Interpreted frame)

Thread 13802: (state = BLOCKED)
 - java.util.Arrays.copyOfRange(char[],int,int) @bci=40,line=3209 (Compiled frame)
 - java.lang.String.<init>(char[],int) @bci=65,line=216 (Compiled frame)
 - java.lang.StringBuffer.toString() @bci=13,line=585 (Compiled frame)
 - org.apache.log4j.PatternLayout.format(org.apache.log4j.spi.LoggingEvent) @bci=68,line=506 (Compiled frame)

Thread 13784: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove(long) @bci=44,line=116 (Compiled frame)
 - org.jboss.el.util.ReferenceCache$ReferenceQueueRunner.run() @bci=1,line=159 (Interpreted frame)

Thread 13753: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise)
 - org.jboss.ejb3.cache.simple.SimpleStatefulCache$SessionTimeoutTask.block() @bci=11,line=210 (Interpreted frame)

Thread 13752: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - org.jboss.resource.connectionmanager.IdleRemover$IdleRemoverRunnable.run() @bci=31,line=167 (Interpreted frame)

Thread 13749: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=485 (Interpreted frame)
 - org.jboss.remoting.transport.socket.ServerThread.run() @bci=209,line=284 (Interpreted frame)

Thread 13734: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.util.TimerThread.mainLoop() @bci=201,line=509 (Interpreted frame)

Thread 13701: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,line=158 (Interpreted frame)

Thread 13700: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise)
 - org.jboss.console.plugins.AOPLister$RefreshPoller.run() @bci=41,line=898 (Interpreted frame)

Thread 13699: (state = BLOCKED)
 - java.lang.Thread.sleep(long) @bci=0 (Compiled frame; information may be imprecise)
 - org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run() @bci=22,line=1590 (Interpreted frame)
 - java.lang.Thread.run() @bci=11,line=619 (Interpreted frame)


Thread 13698: (state = IN_NATIVE)
 - java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) @bci=0 (Interpreted frame)

Thread 13678: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean,long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.parkNanos(java.lang.Object,long) @bci=20,line=198 (Interpreted frame)

Thread 13554: (state = BLOCKED)

Thread 13560: (state = BLOCKED)

Thread 13559: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.ref.ReferenceQueue.remove(long) @bci=44,line=116 (Compiled frame)
 - java.lang.ref.ReferenceQueue.remove() @bci=2,line=132 (Compiled frame)
 - java.lang.ref.Finalizer$FinalizerThread.run() @bci=3,line=159 (Compiled frame)


Thread 13558: (state = BLOCKED)
 - java.lang.Object.wait(long) @bci=0 (Interpreted frame)
 - java.lang.Object.wait() @bci=2,line=485 (Compiled frame)
 - java.lang.ref.Reference$ReferenceHandler.run() @bci=46,line=116 (Compiled frame)

解决方法

一种可能性是你用完了堆空间.如果用尽堆积空间,JVM将以极大的速度开始燃烧cpu,进行垃圾收集.
原文链接：https://www.f2er.com/jvm/124813.html

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