[jira] [Created] (QPID-7050) [Java Broker] State change executor shutdown might delay closing of virtual host node when state change functionality is performed in parallel with replication environment facade close

["Alex Rudyy (JIRA)" <ji...@apache.org>]

Alex Rudyy created QPID-7050:
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             Summary: [Java Broker] State change executor shutdown might delay closing of virtual host node when state change functionality is performed in parallel with replication environment facade close
                 Key: QPID-7050
                 URL: https://issues.apache.org/jira/browse/QPID-7050
             Project: Qpid
          Issue Type: Bug
          Components: Java Broker
    Affects Versions: qpid-java-6.0, 0.32, qpid-java-6.1
            Reporter: Alex Rudyy


The failure of test BDBHAVirtualHostNodeRestTest.testIntruderProtection reviled  that BDB HA VHN close could be delayed by REF close waiting for state change executor shutdown  when change executor shutdown is performing task for state change event.

On state change state change executor invokes BDBHAVirtualHostNodeImpl.EnvironmentStateChangeListener#stateChange and waits for operation to finish. If operation invokes configuration thread to do the work and waits for its finish and,  at the same time when, REF#close is performed in config-thread, for example, because of intruder protection, the two threads block each other.

Config thread performing in REF#close() is waiting for state change thread  to finish and state change thread is waiting for config thread to finish submitted state change task.




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