登录
当前位置： 首页 > 面试题库 >

如何解释Java线程堆栈？

谭高峯
2023-03-14
问题内容：

我想知道是否有人可以指出有关解释用提取的Java线程堆栈的信息jstack。

我的情况是我在GlassFish v2.1.1上运行了一个Java EE
5应用程序，该应用程序定期挂起（每天至少挂2次-3次）。要使其再次运行，我必须终止Glassfish进程并重新启动域。
。应用程序通常会变得越来越慢，直到最终完全挂起。一旦挂起，我将无法获得线程堆栈。我已经能够获得一个线程堆栈，因为它变得越来越慢，但是我看不到找到问题或挂起的线程。

这是最新的线程转储：http
:
//issues.i2m.dk/attachments/66/threadstack.201103211046.txt

线程转储代码段：

"p: thread-pool-1; w: 20" daemon prio=10 tid=0x00007efd18843800 nid=0x5f89 in Object.wait() [0x00007efd03381000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl.requestWork(WorkQueueImpl.java:171)
    - locked <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:528)

"TP-Processor83" daemon prio=10 tid=0x0000000043179000 nid=0x5f87 runnable [0x00007efd03583000]
   java.lang.Thread.State: RUNNABLE
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.read(SocketInputStream.java:129)
    at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
    at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
    - locked <0x00007efe72696090> (a java.io.BufferedInputStream)
    at org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:607)
    at org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:545)
    at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:672)
    at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:876)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    at java.lang.Thread.run(Thread.java:662)

"p: thread-pool-1; w: 19" daemon prio=10 tid=0x00007efd18710800 nid=0x5f86 in Object.wait() [0x00007efd03684000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl.requestWork(WorkQueueImpl.java:171)
    - locked <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:528)

"p: thread-pool-1; w: 18" daemon prio=10 tid=0x0000000042a5a000 nid=0x5f85 in Object.wait() [0x00007efd03785000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl.requestWork(WorkQueueImpl.java:171)
    - locked <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:528)

"p: thread-pool-1; w: 17" daemon prio=10 tid=0x0000000042a57000 nid=0x5f84 in Object.wait() [0x00007efd03886000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl.requestWork(WorkQueueImpl.java:171)
    - locked <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:528)

"p: thread-pool-1; w: 16" daemon prio=10 tid=0x000000004321b000 nid=0x5f83 in Object.wait() [0x00007efd03987000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl.requestWork(WorkQueueImpl.java:171)
    - locked <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:528)

"p: thread-pool-1; w: 15" daemon prio=10 tid=0x0000000043219800 nid=0x5f82 in Object.wait() [0x00007efd03a88000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl.requestWork(WorkQueueImpl.java:171)
    - locked <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:528)

"p: thread-pool-1; w: 14" daemon prio=10 tid=0x00000000429b6000 nid=0x5f81 in Object.wait() [0x00007efd03b89000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl.requestWork(WorkQueueImpl.java:171)
    - locked <0x00007efd480fc228> (a com.sun.corba.ee.impl.orbutil.threadpool.WorkQueueImpl)
    at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:528)

"TP-Processor82" daemon prio=10 tid=0x0000000043896800 nid=0x5f80 runnable [0x00007efd03c8a000]
   java.lang.Thread.State: RUNNABLE
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.read(SocketInputStream.java:129)
    at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
    at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
    - locked <0x00007efe72829510> (a java.io.BufferedInputStream)
    at org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:607)
    at org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:545)
    at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:672)
    at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:876)
    at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    at java.lang.Thread.run(Thread.java:662)

"Thread-44980" daemon prio=10 tid=0x00007efd202c3800 nid=0x5d74 runnable [0x00007efd067b5000]
   java.lang.Thread.State: RUNNABLE
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.read(SocketInputStream.java:129)
    at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
    at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
    - locked <0x00007efd78fc0058> (a java.io.BufferedInputStream)
    at com.sun.jndi.ldap.Connection.run(Connection.java:808)
    at java.lang.Thread.run(Thread.java:662)

"Thread-44979" daemon prio=10 tid=0x00007efd20d76000 nid=0x5d73 runnable [0x00007efd062b0000]
   java.lang.Thread.State: RUNNABLE
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.read(SocketInputStream.java:129)
    at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
    at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
    at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
    - locked <0x00007efd7789a4e0> (a java.io.BufferedInputStream)
    at com.sun.jndi.ldap.Connection.run(Connection.java:808)
    at java.lang.Thread.run(Thread.java:662)

"TP-Monitor" daemon prio=10 tid=0x00007efd2139f800 nid=0x5b1 in Object.wait() [0x00007efd0d453000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd4d46d6c0> (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
    at org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable.run(ThreadPool.java:561)
    - locked <0x00007efd4d46d6c0> (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
    at java.lang.Thread.run(Thread.java:662)

"TP-Monitor" daemon prio=10 tid=0x00007efd20143000 nid=0x5b0 in Object.wait() [0x00007efd0d554000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd4d96dcd8> (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
    at org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable.run(ThreadPool.java:561)
    - locked <0x00007efd4d96dcd8> (a org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
    at java.lang.Thread.run(Thread.java:662)

"httpWorkerThread-4848-48" daemon prio=10 tid=0x00007efd18a82800 nid=0x5aa in Object.wait() [0x00007efd0db5a000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd4d09a620> (a com.sun.enterprise.web.connector.grizzly.LinkedListPipeline)
    at java.lang.Object.wait(Object.java:485)
    at com.sun.enterprise.web.connector.grizzly.LinkedListPipeline.getTask(LinkedListPipeline.java:304)
    - locked <0x00007efd4d09a620> (a com.sun.enterprise.web.connector.grizzly.LinkedListPipeline)
    at com.sun.enterprise.web.connector.grizzly.WorkerThreadImpl.run(WorkerThreadImpl.java:120)


"GrizzlyPipelineStatWorkerThread-4848-2" daemon prio=10 tid=0x00007efd20033000 nid=0x579 waiting on condition [0x00007efd10c8b000]
   java.lang.Thread.State: TIMED_WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    - parking to wait for  <0x00007efd4d098f30> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025)
    at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:609)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:602)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
    at com.sun.enterprise.web.connector.grizzly.WorkerThreadImpl.run(WorkerThreadImpl.java:113)

"GrizzlyPipelineStatWorkerThread-4848-1" daemon prio=10 tid=0x00007efd2124f000 nid=0x578 waiting on condition [0x00007efd10d8c000]
   java.lang.Thread.State: TIMED_WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    - parking to wait for  <0x00007efd4d098f30> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025)
    at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:609)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:602)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
    at com.sun.enterprise.web.connector.grizzly.WorkerThreadImpl.run(WorkerThreadImpl.java:113)

"httpSSLWorkerThread-8181-48" daemon prio=10 tid=0x0000000042041800 nid=0x575 in Object.wait() [0x00007efd1108f000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd4d0c8308> (a com.sun.enterprise.web.connector.grizzly.ssl.SSLPipeline)
    at java.lang.Object.wait(Object.java:485)
    at com.sun.enterprise.web.connector.grizzly.LinkedListPipeline.getTask(LinkedListPipeline.java:304)
    - locked <0x00007efd4d0c8308> (a com.sun.enterprise.web.connector.grizzly.ssl.SSLPipeline)
    at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:109)


"SelectorThread-4848" prio=10 tid=0x00007efd207ba800 nid=0x546 runnable [0x00007efd13fbe000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
    - locked <0x00007efd4d9c24c0> (a sun.nio.ch.Util$1)
    - locked <0x00007efd4d9c24a8> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00007efd4d9c1d58> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.doSelect(SelectorThread.java:1421)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.startListener(SelectorThread.java:1336)
    - locked <0x00007efd4d9c27c0> (a [Ljava.lang.Object;)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.startEndpoint(SelectorThread.java:1299)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.run(SelectorThread.java:1275)


"httpSSLWorkerThread-8080-49" daemon prio=10 tid=0x00007efd20bfc800 nid=0x541 in Object.wait() [0x00007efd144c3000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd4d0f97a8> (a com.sun.enterprise.web.portunif.PortUnificationPipeline)
    at java.lang.Object.wait(Object.java:485)
    at com.sun.enterprise.web.connector.grizzly.LinkedListPipeline.getTask(LinkedListPipeline.java:304)
    - locked <0x00007efd4d0f97a8> (a com.sun.enterprise.web.portunif.PortUnificationPipeline)
    at com.sun.enterprise.web.connector.grizzly.ssl.SSLWorkerThread.run(SSLWorkerThread.java:109)


"SelectorThread-8181" prio=10 tid=0x00007efd2161c000 nid=0x50e runnable [0x00007efd177f6000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
    - locked <0x00007efd4d3a6800> (a sun.nio.ch.Util$1)
    - locked <0x00007efd4d3a67e8> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00007efd4d3a6098> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.doSelect(SelectorThread.java:1421)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.startListener(SelectorThread.java:1336)
    - locked <0x00007efd4d3a6b00> (a [Ljava.lang.Object;)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.startEndpoint(SelectorThread.java:1299)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.run(SelectorThread.java:1275)

"GrizzlyPipelineStatWorkerThread-8080-1" daemon prio=10 tid=0x00007efd20f4c800 nid=0x50a waiting on condition [0x00007efd17bfa000]
   java.lang.Thread.State: TIMED_WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    - parking to wait for  <0x00007efd4d120680> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025)
    at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:609)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:602)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
    at com.sun.enterprise.web.connector.grizzly.WorkerThreadImpl.run(WorkerThreadImpl.java:113)

"GrizzlyPipelineStatWorkerThread-8080-0" daemon prio=10 tid=0x00007efd20966800 nid=0x509 waiting on condition [0x00007efd17cfb000]
   java.lang.Thread.State: TIMED_WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    - parking to wait for  <0x00007efd4d120680> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:198)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2025)
    at java.util.concurrent.DelayQueue.take(DelayQueue.java:164)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:609)
    at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:602)
    at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:947)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
    at com.sun.enterprise.web.connector.grizzly.WorkerThreadImpl.run(WorkerThreadImpl.java:113)

"SelectorThread-8080" prio=10 tid=0x00007efd201a0800 nid=0x508 runnable [0x00007efd17dfc000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
    - locked <0x00007efd4dc827a0> (a sun.nio.ch.Util$1)
    - locked <0x00007efd4dc82788> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00007efd4dc82088> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.doSelect(SelectorThread.java:1421)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.startListener(SelectorThread.java:1336)
    - locked <0x00007efd4dc82aa0> (a [Ljava.lang.Object;)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.startEndpoint(SelectorThread.java:1299)
    at com.sun.enterprise.web.connector.grizzly.SelectorThread.run(SelectorThread.java:1275)

"ContainerBackgroundProcessor[StandardEngine[com.sun.appserv]]" daemon prio=10 tid=0x00007efd207af800 nid=0x503 waiting on condition [0x00007efd1c76c000]
   java.lang.Thread.State: TIMED_WAITING (sleeping)
    at java.lang.Thread.sleep(Native Method)
    at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1813)
    at java.lang.Thread.run(Thread.java:662)


"Timer-13" daemon prio=10 tid=0x00007efd202d2800 nid=0x4fe in Object.wait() [0x00007efd1c96e000]
   java.lang.Thread.State: WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd4ab21998> (a java.util.TaskQueue)
    at java.lang.Object.wait(Object.java:485)
    at java.util.TimerThread.mainLoop(Timer.java:483)
    - locked <0x00007efd4ab21998> (a java.util.TaskQueue)
    at java.util.TimerThread.run(Timer.java:462)

"Timer-9" daemon prio=10 tid=0x00007efd209ad000 nid=0x4f9 in Object.wait() [0x00007efd1d7d1000]
   java.lang.Thread.State: TIMED_WAITING (on object monitor)
    at java.lang.Object.wait(Native Method)
    - waiting on <0x00007efd4a82c750> (a java.util.TaskQueue)
    at java.util.TimerThread.mainLoop(Timer.java:509)
    - locked <0x00007efd4a82c750> (a java.util.TaskQueue)
    at java.util.TimerThread.run(Timer.java:462)

"Thread-11" daemon prio=10 tid=0x00007efd183f6800 nid=0x4c0 waiting on condition [0x00007efd1efe7000]
   java.lang.Thread.State: WAITING (parking)
    at sun.misc.Unsafe.park(Native Method)
    - parking to wait for  <0x00007efd48273738> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
    at java.util.concurrent.locks.LockSupport.park(LockSupport.java:158)
    at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:1987)
    at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:399)
    at com.sun.enterprise.management.support.LoaderRegThread.processFOREVER(LoaderRegThread.java:263)
    at com.sun.enterprise.management.support.LoaderRegThread.run(LoaderRegThread.java:311)


"SelectorThread" daemon prio=10 tid=0x00007efd183ff800 nid=0x4ba runnable [0x00007efd1f5ed000]
   java.lang.Thread.State: RUNNABLE
    at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
    at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:210)
    at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:65)
    at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:69)
    - locked <0x00007efd48171e70> (a sun.nio.ch.Util$1)
    - locked <0x00007efd48171e58> (a java.util.Collections$UnmodifiableSet)
    - locked <0x00007efd48171a98> (a sun.nio.ch.EPollSelectorImpl)
    at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:80)
    at com.sun.corba.ee.impl.transport.SelectorImpl.run(SelectorImpl.java:283)

我正在寻找有关解释转储的一般信息，以便将来可以诊断问题。谢谢。


问题答案：

可能会帮助您的几件事

  • 这是解释的不同线程状态，例如“阻塞”，“等待”等。
  • Java将为您找到死锁，并且您将看到输出，如使用’jstack’检测Java线程死锁中所述。
  • 您可能有活锁。在这里，您需要有关系统以及转储和源代码的信息。

如何解决当前的问题？

  • 基于此转储，我可以告诉您有几个对象已从多个线程锁定并等待。查找字符串“-等待中”和“-锁定”。我不知道您的应用要说明更多的逻辑。


 类似资料：
  • 如何引流Java线程堆栈内存区域？

    在C语言中，我可以用下面的小程序来耗尽堆栈内存区域（我的Mac中堆栈大小的限制是8MB) 由于数组是Java也是一个对象，它的元素存储在堆中。根据Oracle的文档，默认的线程堆栈大小在MAC中为512KB。是否有任何程序可以耗尽堆栈大小？

  • Java(JVM)如何为每个线程分配堆栈

    但是堆栈创建是如何工作的呢？Java是否在创建每个线程时为其创建堆栈？如果是，堆栈在内存上的具体位置？它当然不在“托管”堆中。 JVM是从本机内存创建堆栈还是为堆栈预先分配了一段托管内存区域？如果是，那么JVM如何知道如何创建线程呢？

  • Java线程堆栈内存占用

    当我研究线程及其占用的内存（线程堆栈）时，我决定做一个简单的负载测试，看看线程的数量如何影响我的计算机上的RAM。 所以，在测试中，我使用了Tomcat，在设置中。xml将最小和最大web容器线程池设置为200。在那之后，我在将pool设置为2000时也做了同样的操作。我很震惊，因为内存占用没有差异（通过Windows任务管理器进行检查），而且几乎是一样的。所以我认为这些线程可能必须处于运行状态，

  • 获取Java线程ID和失控Java线程的堆栈跟踪

    问题内容： 在最繁忙的生产安装中，有时会遇到一个似乎陷入无限循环的单线程。经过大量研究和调试，我仍未弄清楚是谁的罪魁祸首，但似乎应该有可能。这是血腥的细节： 当前调试说明： 1） ps -eL 18975 向我展示了Linux pid的问题子线程19269 2） jstack -l 18975 说没有死锁， jstack -m 18975 不起作用 3） jstack -l 18975 确实给了我

  • 如何在线程池中创建和释放线程

    我在很多地方读过，线程池减少了线程创建开销，从而提高了性能。但是一旦线程执行完它的run方法，它就会进入dead/terminated状态，这意味着它可以再次重新启动。 那么，线程池如何处理线程的释放呢？它是否真的以某种方式保存线程以服务下一个任务，或者在每次提交任务时在内部创建新线程？

  • 深入JVM剖析Java的线程堆栈

    本文向大家介绍深入JVM剖析Java的线程堆栈，包括了深入JVM剖析Java的线程堆栈的使用技巧和注意事项，需要的朋友参考一下 在这篇文章里我将教会你如何分析JVM的线程堆栈以及如何从堆栈信息中找出问题的根因。在我看来线程堆栈分析技术是Java EE产品支持工程师所必须掌握的一门技术。在线程堆栈中存储的信息，通常远超出你的想象，我们可以在工作中善加利用这些信息。 我的目标是分享我过去十几年来在线程

相关阅读

了解Java堆栈了解Java堆java 线程创建多线程详解Java 线程池详解详解Java线程-守护线程与用户线程

相关文章

Java 线程同步Java 守护线程Java 线程休眠Java 线程调度Java 线程优先级

相关问答

如何让线程等待ReentantLock被释放？释放堆栈如何解释Java中double的范围？JVM堆栈、堆和线程如何映射到物理内存或操作系统如何理解java中的注释以及如何用java实现我的注释？

相关工具

iOS 多线程编程实例多线程TCP端口扫描器多线程页面抓取服务器光线CMScoreplot动态线

相关文档

Java 并发性和多线程HTML5 在线教程理解 Linux 进程Java 课程 COOLJava 入门教程
快捷导航： 新手教程 算法原理 架构设计 Java进阶 数据库进阶 大厂专栏 面试经验 编程笔记 编程问答 所有专题 文档资料 工具软件 电子书籍 小牛导航
在线工具： 房贷计算器 个税计算器 Linux命令查询 Json格式化 正则表达式 颜色转换 AES加解密 SHA1加密 MD5加密 毒鸡汤 字数统计 随机密码生成 进制转换 Base64编解码 励志句子
Copyright © 2019-2024 小牛知识库@xnip.cn. All Rights Reserved.