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  1. QuickFIX/J
  2. QFJ-645

Deadlock between message sending and reset due to message reception on Session and senderMsgSeqNumLock


    • Type: Bug
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 1.5.0, 1.5.1
    • Fix Version/s: 1.5.3
    • Component/s: Engine
    • Labels:


      Deadlock arises between the following threads:

      "GatewayStateTimer" daemon prio=3 tid=0x04d65388 nid=0x2bef waiting for monitor entry [0x790ff000..0x790ff9f0]
      at quickfix.SessionState.isLogonSent(SessionState.java:162)

      • waiting to lock <0x9d12c020> (a quickfix.Session)
        at quickfix.Session.sentLogon(Session.java:690)
        at quickfix.Session.isLoggedOn(Session.java:731)
        at quickfix.Session.sendRaw(Session.java:2151)
        at quickfix.Session.send(Session.java:2213)
        at quickfix.Session.sendToTarget(Session.java:590)
        at com.greatBank.application.fix.Engine.sendMessage(Engine.java:54)
        at com.greatBank.application.fix.Engine.pingFIX(Engine.java:191)
        at com.greatBank.application.fix.Engine.access$0(Engine.java:186)
        at com.greatBank.application.fix.Engine$PingTimerTask.run(Engine.java:176)
        at java.util.TimerThread.mainLoop(Timer.java:512)
        at java.util.TimerThread.run(Timer.java:462)

      -> Thread1 is sending a message: it first acquires the lock senderMsgSeqNumLock and then tries to acquire a lock on the session instance

      "QF/J Session dispatcher: FIX.4.2:SENDER1->TARGET1" daemon prio=3 tid=0x014e5ac8 nid=0x2bfc waiting on condition [0x794ff000..0x794ff970]
      at sun.misc.Unsafe.park(Native Method)
      at java.util.concurrent.locks.LockSupport.park(LockSupport.java:118)
      at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:716)
      at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:746)
      at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1076)
      at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:184)
      at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:256)
      at quickfix.SessionState.lockSenderMsgSeqNum(SessionState.java:322)
      at quickfix.Session.sendRaw(Session.java:2117)
      at quickfix.Session.generateLogout(Session.java:1293)
      at quickfix.Session.generateLogout(Session.java:1284)
      at quickfix.Session.reset(Session.java:756)

      • locked <0x9d12c020> (a quickfix.Session)
        at quickfix.Session.next(Session.java:836)
        at quickfix.mina.ThreadPerSessionEventHandlingStrategy$MessageDispatchingThread.run(ThreadPerSessionEventHandlingStrategy.java:119)

      -> Thread2: while processing an incoming message, the engine notices that it is in a new session time interval (StartTime/EndTime) and therefore a MsqSeqNum reset is started.
      The reset method acquires a lock on the session and, when generating a Logout, tries to acquire the lock senderMsgSeqNumLock, and then deadlocks with Thread1


          Issue Links


            msperisen marc sperisen created issue -
            peteclarkez Peter Clarke made changes -
            Field Original Value New Value
            Attachment SessionResetTest.java [ 10372 ]
            chrjohn Christoph John made changes -
            Assignee Christoph John [ chrjohn ]
            chrjohn Christoph John made changes -
            Status Open [ 1 ] In Progress [ 3 ]
            chrjohn Christoph John made changes -
            Status In Progress [ 3 ] Resolved [ 5 ]
            Resolution Fixed [ 1 ]
            chrjohn Christoph John made changes -
            Fix Version/s 1.5.3 [ 10165 ]
            chrjohn Christoph John made changes -
            Link This issue is duplicated by QFJ-700 [ QFJ-700 ]
            chrjohn Christoph John made changes -
            Link This issue is duplicated by QFJ-571 [ QFJ-571 ]


              • Assignee:
                chrjohn Christoph John
                msperisen marc sperisen
              • Votes:
                2 Vote for this issue
                6 Start watching this issue


                • Created: