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社区首页 >问答首页 >JVM消耗所有CPU，大多数线程被阻塞。JVM错误？

问JVM消耗所有CPU，大多数线程被阻塞。JVM错误？
EN

Stack Overflow用户
提问于 2010-08-10 14:17:22
回答 2查看 14.7K关注 0票数 10

昨晚，一台服务器(JBoss 5.1GA，Java(TM) SE Runtime Environment (build 1.6.0_20-b02)，Java HotSpot(TM) 64位服务器VM，运行在VMWare上的Linux上)突然开始使用100%的CPU。该应用程序是一个相当典型的运行Seam的J2EE业务应用程序，没有什么特别之处。当时的负荷非常低。

在进程被终止和重新启动之前，我设法获得了一个线程转储(应用程序必须可用)。JStack在死锁检测方面有一个异常；除此之外，大多数线程都处于阻塞状态。

这是JVM错误吗？我以前没见过。重启后一切正常，就像应用程序在服务器上使用后的几个月(定期更新)。

谢谢你的建议。

下面是一个稍微编辑过的线程转储(以适应SO的post大小限制)。我删除了几个相同的线程(从JBoss/Seam中的各种线程池中删除)，只留下堆栈跟踪中的顶级行。

编辑:位于http://pastie.org/1083984的完整线程转储

代码语言：javascript
复制
[~]$ 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, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park(java.lang.Object) @bci=14, 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=485 (Interpreted frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Worker.await() @bci=8, line=416 (Interpreted frame)

Thread 21139: (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 21138: (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 19380: (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 19377: (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 19361: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)

Thread 19343: (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 19317: (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 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, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park(java.lang.Object) @bci=14, line=158 (Interpreted frame)

Thread 17658: (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 17653: (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 17631: (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 14977: (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 14796: (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 14609: (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 14437: (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 14248: (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 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=485 (Interpreted frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Worker.await() @bci=8, 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=485 (Interpreted frame)
 - org.apache.tomcat.util.net.JIoEndpoint$Worker.await() @bci=8, 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=485 (Interpreted frame)
 - org.jboss.jms.client.container.ClientConsumer.getMessage(long) @bci=71, 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, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park(java.lang.Object) @bci=14, line=158 (Interpreted frame)

Thread 13805: (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 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, 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, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.park(java.lang.Object) @bci=14, 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)
java
multithreading
concurrency
locking
EN

回答 2

Stack Overflow用户

回答已采纳

发布于 2010-08-10 18:03:12

一种可能是堆空间用完了。如果您耗尽了堆空间，JVM将开始以惊人的速度耗尽CPU，进行疯狂的垃圾收集。

票数 15
EN

Stack Overflow用户

发布于 2010-08-10 18:12:19

另一种可能是磁盘或RAM错误。这是非常罕见的，特别是当你正在使用ECC RAM，SAS或SCSI，其中包含错误纠正的数据传输。但这有可能发生！

我读过一些非常奇怪的bug，IBM和Sun内核工程师支持大型企业，他们只能怪在这样的事情上。

这对你没有多大帮助，除了让你知道你可能永远不会发现它发生的真正原因，它可能永远不会再发生多年。:)

票数 0
EN
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：

https://stackoverflow.com/questions/3449918

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