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https://issues.apache.org/jira/browse/HBASE-23682?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bharath Vissapragada resolved HBASE-23682.
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Resolution: Fixed
Thanks [~binlijin]
> Fix NPE when disable DeadServerMetricRegionChore
> -------------------------------------------------
>
> Key: HBASE-23682
> URL: https://issues.apache.org/jira/browse/HBASE-23682
> Project: HBase
> Issue Type: Bug
> Components: master
> Affects Versions: 3.0.0, 2.3.0, 2.2.3
> Reporter: Lijin Bin
> Assignee: Lijin Bin
> Priority: Major
> Fix For: 3.0.0, 2.3.0
>
>
> set hbase.assignment.dead.region.metric.chore.interval.msec = -1
> {code}
> 2020-01-13 10:35:46,247 ERROR [master/10.89.25.45:16000:becomeActiveMaster]
> master.HMaster: Failed to become active master
> java.lang.NullPointerException
> at
> org.apache.hadoop.hbase.procedure2.ProcedureExecutor.addChore(ProcedureExecutor.java:736)
> at
> org.apache.hadoop.hbase.master.assignment.AssignmentManager.joinCluster(AssignmentManager.java:1381)
> at
> org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:1101)
> at
> org.apache.hadoop.hbase.master.HMaster.startActiveMasterManager(HMaster.java:2223)
> at org.apache.hadoop.hbase.master.HMaster.lambda$run$0(HMaster.java:605)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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