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From "Jeffrey Zhong (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9918) MasterAddressTracker & ZKNamespaceManager ZK listeners are missed after master recovery
Date Fri, 08 Nov 2013 00:15:18 GMT
Jeffrey Zhong created HBASE-9918:
------------------------------------

             Summary: MasterAddressTracker & ZKNamespaceManager ZK listeners are missed
after master recovery
                 Key: HBASE-9918
                 URL: https://issues.apache.org/jira/browse/HBASE-9918
             Project: HBase
          Issue Type: Bug
            Reporter: Jeffrey Zhong


TestZooKeeper#testRegionAssignmentAfterMasterRecoveryDueToZKExpiry always failed at the following
verification for me in my dev env(you have to run the single test  not the whole TestZooKeeper
suite to reproduce)
{code}
assertEquals("Number of rows should be equal to number of puts.", numberOfPuts, numberOfRows);
{code}

We missed two ZK listeners after master recovery MasterAddressTracker & ZKNamespaceManager.


My current patch is to fix the JIRA issue while I'm wondering if we should totally remove
the master failover implementation when ZK session expired because this causes reinitialize
HMaster partially which is error prone and not a clean state to start from. 

 






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