[jira] [Created] (QPID-7427) [Java Broker, HA] An activation of stopped node might fail when node has ahead of master transactions causing Environment to restart

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

Alex Rudyy created QPID-7427:
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             Summary: [Java Broker, HA] An activation of stopped node might fail when node has ahead of master transactions causing Environment to restart
                 Key: QPID-7427
                 URL: https://issues.apache.org/jira/browse/QPID-7427
             Project: Qpid
          Issue Type: Bug
          Components: Java Broker
    Affects Versions: qpid-java-6.0.4, qpid-java-6.0.3, qpid-java-6.0.2, qpid-java-6.0.1, qpid-java-6.0, 0.32, qpid-java-6.1
            Reporter: Alex Rudyy


Test MultiNodeTest.testInFlightTransactionsWhilstMajorityIsLost can fail sporadically on sending REST request to activate the stopped node which has transactions ahead of master causing the Environment to restart.

On activation the JE environment is created. If it detects ahead of master transactions it restarts itself. The activation logic within BDB VHN accesses the Environment via EnvironmentFacade but "ConnectionScopedRuntimeException: Environment is restarting" is thrown causing VHN transition into ERRORED state. REST request ends up in 500 http status code.

The operator would be required to repeat the REST request in order to finish activation. However, 500 status code can potentially confuse the end user.

Additionally activation logic could be retried inside of activate mode on running into "Environment restarting" exception.

The failed test (MultiNodeTest.testInFlightTransactionsWhilstMajorityIsLos) on detection of 500 status code just logs it and ignore. It seems that test optimistically assumes that activation will be always successful.We need to fix a test to repeat the activation if it fails.




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