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https://issues.apache.org/jira/browse/HBASE-9932?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Kyle Purtell resolved HBASE-9932.
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Resolution: Not A Problem
> 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
> Priority: Major
>
> 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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