Keith Wall created QPID-7185:
--------------------------------
Summary:
ReplicatedEnvironmentFacadeTest.testReplicationGroupListenerHearsNodeRemoved
fails sporadically on Apache CI
Key: QPID-7185
URL: https://issues.apache.org/jira/browse/QPID-7185
Project: Qpid
Issue Type: Bug
Components: Java Tests
Reporter: Keith Wall
Fix For: qpid-java-6.1
The test {{testReplicationGroupListenerHearsNodeRemoved }} failed in the
following way on the Apache CI host:
{noformat}
org.apache.qpid.server.store.StoreException: Exception on node removal from
group
at
com.sleepycat.je.EnvironmentFailureException.unexpectedState(EnvironmentFailureException.java:426)
at
com.sleepycat.je.rep.util.ReplicationGroupAdmin.getException(ReplicationGroupAdmin.java:504)
at
com.sleepycat.je.rep.util.ReplicationGroupAdmin.doMessageExchange(ReplicationGroupAdmin.java:474)
at
com.sleepycat.je.rep.util.ReplicationGroupAdmin.removeMember(ReplicationGroupAdmin.java:245)
at
org.apache.qpid.server.store.berkeleydb.replication.ReplicatedEnvironmentFacade.removeNodeFromGroup(ReplicatedEnvironmentFacade.java:1284)
at
org.apache.qpid.server.store.berkeleydb.replication.ReplicatedEnvironmentFacadeTest.testReplicationGroupListenerHearsNodeRemoved(ReplicatedEnvironmentFacadeTest.java:377)
{noformat}
The underlying exception was as follows:
{noformat}
2016-04-03 23:19:00,667 ERROR [main] o.a.q.s.u.ServerScopedRuntimeException
Exception on node removal from group
com.sleepycat.je.EnvironmentFailureException: (JE 5.0.104) (JE 5.0.104)
Transaction -20 cannot execute write operations because this node is no longer
a master UNEXPECTED_STATE: Unexpected internal state, may have side effects.
at
com.sleepycat.je.EnvironmentFailureException.unexpectedState(EnvironmentFailureException.java:426)
~[je-5.0.104.jar:5.0.104]
at
com.sleepycat.je.rep.util.ReplicationGroupAdmin.getException(ReplicationGroupAdmin.java:504)
~[je-5.0.104.jar:5.0.104]
at
com.sleepycat.je.rep.util.ReplicationGroupAdmin.doMessageExchange(ReplicationGroupAdmin.java:474)
~[je-5.0.104.jar:5.0.104]
at
com.sleepycat.je.rep.util.ReplicationGroupAdmin.removeMember(ReplicationGroupAdmin.java:245)
~[je-5.0.104.jar:5.0.104]
at
org.apache.qpid.server.store.berkeleydb.replication.ReplicatedEnvironmentFacade.removeNodeFromGroup(ReplicatedEnvironmentFacade.java:1284)
~[classes/:na]
at
org.apache.qpid.server.store.berkeleydb.replication.ReplicatedEnvironmentFacadeTest.testReplicationGroupListenerHearsNodeRemoved(ReplicatedEnvironmentFacadeTest.java:377)
[test-classes/:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
~[na:1.7.0_80]
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
~[na:1.7.0_80]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[na:1.7.0_80]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_80]
at junit.framework.TestCase.runTest(TestCase.java:176)
[junit-4.11.jar:na]
at
org.apache.qpid.test.utils.QpidTestCase.runTest(QpidTestCase.java:171)
[qpid-test-utils-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT]
at junit.framework.TestCase.runBare(TestCase.java:141)
[junit-4.11.jar:na]
at junit.framework.TestResult$1.protect(TestResult.java:122)
[junit-4.11.jar:na]
at junit.framework.TestResult.runProtected(TestResult.java:142)
[junit-4.11.jar:na]
at junit.framework.TestResult.run(TestResult.java:125)
[junit-4.11.jar:na]
at junit.framework.TestCase.run(TestCase.java:129) [junit-4.11.jar:na]
at org.apache.qpid.test.utils.QpidTestCase.run(QpidTestCase.java:156)
[qpid-test-utils-6.1.0-SNAPSHOT.jar:6.1.0-SNAPSHOT]
at junit.framework.TestSuite.runTest(TestSuite.java:255)
[junit-4.11.jar:na]
at junit.framework.TestSuite.run(TestSuite.java:250) [junit-4.11.jar:na]
at
org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:84)
[junit-4.11.jar:na]
at
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:264)
[surefire-junit4-2.17.jar:2.17]
at
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
[surefire-junit4-2.17.jar:2.17]
at
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:124)
[surefire-junit4-2.17.jar:2.17]
at
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:200)
[surefire-booter-2.17.jar:2.17]
at
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:153)
[surefire-booter-2.17.jar:2.17]
at
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
[surefire-booter-2.17.jar:2.17]
{noformat}
The node that was the target of the {{ReplicationGroupAdmin.removeMember}} call
was at that moment being restarted as majority had been lost. This seems to
have provoked an unexpected exception from within JE.
The test is concerned with ensuring the listener fires correctly in response to
changes in group membership. This test can avoid the possibility of a
mastership loss simply by setting designated primary to true.
As changing the consistency of a group whilst a production system is live would
be an unusual thing to do, this chances of this manifesting in production are
small. If it were to happen, a node restart would be required to restore
service.
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