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  1. WildFly
  2. WFLY-9982

Sometimes BootstrapImpl$ShutdownHook does not finish and holds server shutdown

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Details

    • Bug
    • Resolution: Done
    • Major
    • None
    • 12.0.0.Final
    • MSC, Server
    • None

    Description

      There is intermittent failure where server does not stop and hangs during clean shutdown.

      Investigation:

      In attached thread dump there is shutdown of WF/EAP JVM thread waiting for finishing org.jboss.as.server.BootstrapImpl$ShutdownHook:

      "Management Triggered Shutdown" #262 prio=5 os_prio=0 tid=0x00007f931c03b800 nid=0x3900 in Object.wait() [0x00007f9296423000]
         java.lang.Thread.State: WAITING (on object monitor)
              at java.lang.Object.wait(Native Method)
              - waiting on <0x00000000cf059e98> (a org.jboss.as.server.BootstrapImpl$ShutdownHook)
              at java.lang.Thread.join(Thread.java:1252)
              - locked <0x00000000cf059e98> (a org.jboss.as.server.BootstrapImpl$ShutdownHook)
              at java.lang.Thread.join(Thread.java:1326)
              at java.lang.ApplicationShutdownHooks.runHooks(ApplicationShutdownHooks.java:106)
              at java.lang.ApplicationShutdownHooks$1.run(ApplicationShutdownHooks.java:46)
              at java.lang.Shutdown.runHooks(Shutdown.java:123)
              at java.lang.Shutdown.sequence(Shutdown.java:167)
              at java.lang.Shutdown.exit(Shutdown.java:212)
              - locked <0x00000000cedfac08> (a java.lang.Class for java.lang.Shutdown)
              at java.lang.Runtime.exit(Runtime.java:109)
              at java.lang.System.exit(System.java:971)
              at org.jboss.as.server.SystemExiter$DefaultExiter.exit(SystemExiter.java:117)
              at org.jboss.as.server.SystemExiter.logAndExit(SystemExiter.java:98)
              at org.jboss.as.server.operations.ServerShutdownHandler$ShutdownAction$1.run(ServerShutdownHandler.java:184)
              at java.lang.Thread.run(Thread.java:748)
      

      which hangs in:

      "Thread-3" #12 prio=5 os_prio=0 tid=0x00007f92d01dc800 nid=0x3902 waiting on condition [0x00007f9296221000]
         java.lang.Thread.State: WAITING (parking)
              at sun.misc.Unsafe.park(Native Method)
              - parking to wait for  <0x00000000fc2531d8> (a java.util.concurrent.CountDownLatch$Sync)
              at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
              at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
              at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:997)
              at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1304)
              at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:231)
              at org.jboss.as.server.BootstrapImpl$ShutdownHook.shutdown(BootstrapImpl.java:276)
              at org.jboss.as.server.BootstrapImpl$ShutdownHook.run(BootstrapImpl.java:240)
      

      where ShutdownHook.shutdown(BootstrapImpl.java:276) is waiting for latch to count down however this does not happen. It seems like that not all services shut down.

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              jgreene@redhat.com Jason Greene
              mnovak1@redhat.com Miroslav Novak
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              Dates

                Created:
                Updated:
                Resolved: