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Posted to dev@hbase.apache.org by "Jeffrey Zhong (JIRA)" <ji...@apache.org> on 2013/11/09 03:18:17 UTC

[jira] [Created] (HBASE-9932) Remove Master Recovery handling when ZK session expired

Jeffrey Zhong created HBASE-9932:
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             Summary: Remove Master Recovery handling when ZK session expired
                 Key: HBASE-9932
                 URL: https://issues.apache.org/jira/browse/HBASE-9932
             Project: HBase
          Issue Type: Brainstorming
            Reporter: Jeffrey Zhong


Currently we use HMaster#tryRecoveringExpiredZKSession to allow master recovery from a ZK session expired error. While this triggers to initialize HMaster partially, it is error prone because it's hard to guarantee the half initialized master is in correct state. I found several times already that the registered ZK listeners are different before & after a fail over.

Since we already have HA support, I'm proposing to remove this part handling. Though we have a configuration setting "fail.fast.expired.active.master" to skip the logic, why not go one stop further to clean the master code. 



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