由于线程被阻塞而导致的性能问题
由于线程被阻塞而导致的性能问题
提问于 2012-04-11 13:21:28
因为有时我们在Glassfish 3.1上运行的web应用程序会遇到严重的问题。应用程序通过jms进行异步通信。我们的本机服务通过JBossNetty进行通信。
问题是，对web应用程序的每个请求都会打开一个新线程。这是可以的，但线程永远不会关闭。几个小时后，由于阻塞的线程，系统挂起。
一些线索为什么线程被阻塞？我已经附加了下面的线程转储。
Full Java Thread Dump Java HotSpot(TM) 64-Bit Server VM 21.0-b17 Oracle Corporation
Number of threads: 878
Number of daemon threads: 765
Peak live thread count since the Java virtual machine started or peak was reset: 932
Is support for thread contention monitoring available on this JVM? [true]
Is thread contention monitoring enabled? [false]. If false, some thread synchronization statistics are not be available.
Is support for CPU time measurement for any thread available on this JVM? [true]
Is thread CPU time measurement enabled? [true]. If false, thread execution times are not available for any thread.
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "pool-34-thread-851" thread-id: 47.019 thread-state: TIMED_WAITING Waiting on lock: java.util.concurrent.SynchronousQueue$TransferStack@39e45b53
at: sun.misc.Unsafe.park(Native Method)
at: java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
at: java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at: java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)
at: java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942)
at: java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
Number of times this thread was blocked (to enter/reenter a Monitor): 0
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 2
Total CPU time for this thread: 0 seconds 0 nanoseconds.
User-level CPU time for this thread: 0 seconds 0 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "pool-34-thread-850" thread-id: 47.018 thread-state: TIMED_WAITING Waiting on lock: java.util.concurrent.SynchronousQueue$TransferStack@39e45b53
at: sun.misc.Unsafe.park(Native Method)
at: java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
at: java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at: java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)
at: java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942)
at: java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
Number of times this thread was blocked (to enter/reenter a Monitor): 0
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 1
Total CPU time for this thread: 0 seconds 0 nanoseconds.
User-level CPU time for this thread: 0 seconds 0 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "hz._hzInstance_1_dev.cached.thread-618" thread-id: 47.014 thread-state: TIMED_WAITING Waiting on lock: java.util.concurrent.SynchronousQueue$TransferStack@3f27c3d6
at: sun.misc.Unsafe.park(Native Method)
at: java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
at: java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at: java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)
at: java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942)
at: java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
Number of times this thread was blocked (to enter/reenter a Monitor): 0
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 3
Total CPU time for this thread: 0 seconds 0 nanoseconds.
User-level CPU time for this thread: 0 seconds 0 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "New I/O server worker #1-13" thread-id: 47.004 thread-state: BLOCKED Waiting on lock: java.util.Collections$SynchronizedMap@41310d05
at: com.mycompany.library.transmission.jbossNetty.JBossNettyServer.removeClient(JBossNettyServer.java:412)
at: com.mycompany.library.transmission.jbossNetty.ServerChannelHandler.doDisconnect(ServerChannelHandler.java:459)
at: com.mycompany.library.transmission.jbossNetty.ServerChannelHandler.channelDisconnected(ServerChannelHandler.java:196)
at: org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:132)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at: org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at: org.jboss.netty.handler.codec.replay.ReplayingDecoder.cleanup(ReplayingDecoder.java:555)
at: org.jboss.netty.handler.codec.replay.ReplayingDecoder.channelDisconnected(ReplayingDecoder.java:450)
at: org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:540)
at: org.jboss.netty.channel.Channels.fireChannelDisconnected(Channels.java:360)
at: org.jboss.netty.channel.socket.nio.NioWorker.close(NioWorker.java:587)
at: org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:356)
at: org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:281)
at: org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:201)
at: org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at: org.jboss.netty.util.internal.IoWorkerRunnable.run(IoWorkerRunnable.java:46)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
This thread is blocked waiting on lock owned currently by thread named: pool-66-thread-1, id: 41.339
Number of times this thread was blocked (to enter/reenter a Monitor): 5
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 3
Total CPU time for this thread: 0 seconds 31.200.200 nanoseconds.
User-level CPU time for this thread: 0 seconds 31.200.200 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "New I/O server worker #1-15" thread-id: 46.997 thread-state: BLOCKED Waiting on lock: java.util.Collections$SynchronizedMap@41310d05
at: com.mycompany.library.transmission.jbossNetty.JBossNettyServer.removeClient(JBossNettyServer.java:412)
at: com.mycompany.library.transmission.jbossNetty.ServerChannelHandler.doDisconnect(ServerChannelHandler.java:459)
at: com.mycompany.library.transmission.jbossNetty.ServerChannelHandler.channelDisconnected(ServerChannelHandler.java:196)
at: org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:132)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at: org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at: org.jboss.netty.handler.codec.replay.ReplayingDecoder.cleanup(ReplayingDecoder.java:555)
at: org.jboss.netty.handler.codec.replay.ReplayingDecoder.channelDisconnected(ReplayingDecoder.java:450)
at: org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:540)
at: org.jboss.netty.channel.Channels.fireChannelDisconnected(Channels.java:360)
at: org.jboss.netty.channel.socket.nio.NioWorker.close(NioWorker.java:587)
at: org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:356)
at: org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:281)
at: org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:201)
at: org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at: org.jboss.netty.util.internal.IoWorkerRunnable.run(IoWorkerRunnable.java:46)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
This thread is blocked waiting on lock owned currently by thread named: pool-66-thread-1, id: 41.339
Number of times this thread was blocked (to enter/reenter a Monitor): 9
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 2
Total CPU time for this thread: 0 seconds 124.800.800 nanoseconds.
User-level CPU time for this thread: 0 seconds 124.800.800 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "New I/O server worker #1-22" thread-id: 46.985 thread-state: BLOCKED Waiting on lock: java.util.Collections$SynchronizedMap@41310d05
at: com.mycompany.library.transmission.jbossNetty.JBossNettyServer.addClient(JBossNettyServer.java:395)
at: com.mycompany.library.transmission.jbossNetty.ServerChannelHandler.doIdentify(ServerChannelHandler.java:397)
at: com.mycompany.library.transmission.jbossNetty.ServerChannelHandler.messageReceived(ServerChannelHandler.java:283)
at: org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:100)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at: org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at: org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:302)
at: org.jboss.netty.handler.codec.replay.ReplayingDecoder.unfoldAndfireMessageReceived(ReplayingDecoder.java:526)
at: org.jboss.netty.handler.codec.replay.ReplayingDecoder.callDecode(ReplayingDecoder.java:507)
at: org.jboss.netty.handler.codec.replay.ReplayingDecoder.messageReceived(ReplayingDecoder.java:444)
at: org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:80)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:540)
at: org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:274)
at: org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:261)
at: org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:350)
at: org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:281)
at: org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:201)
at: org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at: org.jboss.netty.util.internal.IoWorkerRunnable.run(IoWorkerRunnable.java:46)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
This thread is blocked waiting on lock owned currently by thread named: pool-66-thread-1, id: 41.339
Number of times this thread was blocked (to enter/reenter a Monitor): 304
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 4
Total CPU time for this thread: 0 seconds 156.001.000 nanoseconds.
User-level CPU time for this thread: 0 seconds 156.001.000 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "New I/O server worker #1-9" thread-id: 46.938 thread-state: RUNNABLE Running in native
at: sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
at: sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:295)
at: sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:277)
at: sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:158)
at: sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
at: sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
at: org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:38)
at: org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:164)
at: org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at: org.jboss.netty.util.internal.IoWorkerRunnable.run(IoWorkerRunnable.java:46)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
Number of times this thread was blocked (to enter/reenter a Monitor): 308
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 3
Total CPU time for this thread: 0 seconds 202.801.300 nanoseconds.
User-level CPU time for this thread: 0 seconds 202.801.300 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "New I/O server worker #1-12" thread-id: 46.937 thread-state: BLOCKED Waiting on lock: java.util.Collections$SynchronizedMap@41310d05
at: com.mycompany.library.transmission.jbossNetty.JBossNettyServer.removeClient(JBossNettyServer.java:412)
at: com.mycompany.library.transmission.jbossNetty.ServerChannelHandler.doDisconnect(ServerChannelHandler.java:459)
at: com.mycompany.library.transmission.jbossNetty.ServerChannelHandler.channelDisconnected(ServerChannelHandler.java:196)
at: org.jboss.netty.channel.SimpleChannelHandler.handleUpstream(SimpleChannelHandler.java:132)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at: org.jboss.netty.channel.DefaultChannelPipeline$DefaultChannelHandlerContext.sendUpstream(DefaultChannelPipeline.java:754)
at: org.jboss.netty.handler.codec.replay.ReplayingDecoder.cleanup(ReplayingDecoder.java:555)
at: org.jboss.netty.handler.codec.replay.ReplayingDecoder.channelDisconnected(ReplayingDecoder.java:450)
at: org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:112)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:545)
at: org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:540)
at: org.jboss.netty.channel.Channels.fireChannelDisconnected(Channels.java:360)
at: org.jboss.netty.channel.socket.nio.NioWorker.close(NioWorker.java:587)
at: org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:356)
at: org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:281)
at: org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:201)
at: org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
at: org.jboss.netty.util.internal.IoWorkerRunnable.run(IoWorkerRunnable.java:46)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
This thread is blocked waiting on lock owned currently by thread named: pool-66-thread-1, id: 41.339
Number of times this thread was blocked (to enter/reenter a Monitor): 311
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 7
Total CPU time for this thread: 0 seconds 156.001.000 nanoseconds.
User-level CPU time for this thread: 0 seconds 156.001.000 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "pool-65-thread-267" thread-id: 46.936 thread-state: TIMED_WAITING Waiting on lock: java.util.concurrent.SynchronousQueue$TransferStack@7b4de4b2
at: sun.misc.Unsafe.park(Native Method)
at: java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
at: java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at: java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)
at: java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942)
at: java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
Number of times this thread was blocked (to enter/reenter a Monitor): 3
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 2
Total CPU time for this thread: 0 seconds 0 nanoseconds.
User-level CPU time for this thread: 0 seconds 0 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "pool-65-thread-266" thread-id: 46.926 thread-state: TIMED_WAITING Waiting on lock: java.util.concurrent.SynchronousQueue$TransferStack@7b4de4b2
at: sun.misc.Unsafe.park(Native Method)
at: java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
at: java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at: java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)
at: java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942)
at: java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------
Number of times this thread was blocked (to enter/reenter a Monitor): 3
Number of times this thread waited for a notification (i.e. it was in WAITING or TIMED_WAITING state): 3
Total CPU time for this thread: 0 seconds 0 nanoseconds.
User-level CPU time for this thread: 0 seconds 0 nanoseconds.
Object Monitors currently held or requested by this thread: []
Ownable Synchronizers (e.g. ReentrantLock and ReentrantReadWriteLock) held by this thread: []
--------------------------------------------------------------------------------
Thread Execution Information:
-----------------------
Thread "pool-65-thread-265" thread-id: 46.920 thread-state: TIMED_WAITING Waiting on lock: java.util.concurrent.SynchronousQueue$TransferStack@7b4de4b2
at: sun.misc.Unsafe.park(Native Method)
at: java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
at: java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at: java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)
at: java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:942)
at: java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1043)
at: java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1103)
at: java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at: java.lang.Thread.run(Thread.java:722)
Thread Synchronization Statistics:
-----------------------回答 1
Stack Overflow用户
发布于 2012-05-16 21:50:56
Sven Moschel，我不是100%确定这是你的问题，但有一些已知的but与重负载和glassfish 3.1.2 http://java.net/jira/browse/GLASSFISH-18351
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/10100243
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