[HBASE-23682] Fix NPE when disable DeadServerMetricRegionChore - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: 3.0.0-alpha-1, 2.3.0, 2.2.3
Fix Version/s: 3.0.0-alpha-1, 2.3.0
Component/s: master
Labels:
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Description

set hbase.assignment.dead.region.metric.chore.interval.msec = -1

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)