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JVM использует весь ЦП, большинство потоков, как ЗАБЛОКИРОВАНО. Ошибка JVM?

Вчера вечером сервер (JBoss 5.1GA, Java(TM) SE Runtime Environment (создают 1.6.0_20-b02), Java HotSpot(TM) 64-Bit Server VM, работающий в VM Linux на VMware) внезапно, начал использовать 100% ЦП. Приложение является довольно типичным бизнес-приложением J2EE, выполняющим Шов, ничто конкретное об этом. Загрузка была чрезвычайно низкой в то время.

Мне удалось получить дамп потока, прежде чем процесс был уничтожен и перезапущен (приложение должно было быть доступным). JStack имел исключение в своем обнаружении мертвой блокировки; кроме этого большинство потоков было в ЗАБЛОКИРОВАННОМ.

Действительно ли это - ошибка JVM? Я не видел его прежде. После перезапуска все было в порядке, как за эти несколько месяцев, так как приложение использовалось на том сервере (с периодическими обновлениями).

Спасибо за любые предложения.

Немного отредактированный дамп потока (для установки в пределе размера сообщения SO) ниже. Я удалил несколько идентичных потоков (из различных пулов потоков в JBoss/Seam) и оставил только верхние строки от отслеживаний стека.

Править: полный дамп потока по 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, 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.(RegisterMap.java:109)
        at sun.jvm.hotspot.runtime.x86.X86RegisterMap.(X86RegisterMap.java:39)
        at sun.jvm.hotspot.runtime.x86.X86RegisterMap.clone(X86RegisterMap.java:43)
        at sun.jvm.hotspot.runtime.VFrame.(VFrame.java:37)
        at sun.jvm.hotspot.runtime.JavaVFrame.(JavaVFrame.java:45)
        at sun.jvm.hotspot.runtime.CompiledVFrame.(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.(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)

10
задан wishihadabettername 10 August 2010 в 15:12
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2 ответа

Одна из возможных причин - исчерпано пространство кучи. Если у вас закончится место в куче, JVM начнет сжигать процессор с огромной скоростью, выполняя безумную сборку мусора.

15
ответ дан 3 December 2019 в 22:34
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Другая возможность - ошибка диска или ОЗУ. Это очень редко, особенно если вы используете ECC RAM, SAS или SCSI, которые содержат исправление ошибок при передаче данных.Но это могло случиться!

Я читал о некоторых действительно странных ошибках, замеченных инженерами ядра IBM и Sun при поддержке крупных предприятий, в которых они могут винить только подобные вещи.

Это мало что вам поможет, кроме как дать вам понять, что вы, возможно, никогда не узнаете настоящую причину, по которой это произошло, и что это может никогда не повториться в течение многих лет. :)

0
ответ дан 3 December 2019 в 22:34
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