Shevek created CURATOR-10:
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Summary: NPE from JMX infrastructure in curator-test
Key: CURATOR-10
URL: https://issues.apache.org/jira/browse/CURATOR-10
Project: Apache Curator
Issue Type: Bug
Reporter: Shevek
Assignee: Jordan Zimmerman
QuorumPeer.java contains this:
finally { MBeanRegistry.getInstance().unregisterAll(); }
Since MBeanRegistry is static, this unregisters all MBeans from ALL QuorumPeers
in a TestingCluster.
This causes:
[ERROR] NIOServerCnxnFactory - Thread
Thread[QuorumPeer[myid=1]/0:0:0:0:0:0:0:0:41733,5,main] died
<java.lang.AssertionError>java.lang.AssertionError
at
org.apache.zookeeper.jmx.MBeanRegistry.register(MBeanRegistry.java:89)
at
org.apache.zookeeper.server.quorum.FastLeaderElection.lookForLeader(FastLeaderElection.java:771)
at
org.apache.zookeeper.server.quorum.QuorumPeer.run(QuorumPeer.java:912)
and similar when connecting a new client to a server after killing another in a
test suite.
Looking for a workaround, but bringing this to your attention early.
Note: Code against ZK 3.5.x library, although that unregisterAll() call seems
to predate that by a long way, so this is presumably valid throughout?
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