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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