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Andrey Elenskiy commented on HBASE-25480: ----------------------------------------- Yup, please go ahead [~dasanjan1296] ! > NPE when getting metrics of backup master > ----------------------------------------- > > Key: HBASE-25480 > URL: https://issues.apache.org/jira/browse/HBASE-25480 > Project: HBase > Issue Type: Bug > Components: master > Affects Versions: 2.4.0 > Reporter: Andrey Elenskiy > Priority: Major > > Getting NullPointerException in MetricsMasterWrapperImpl.getMergePlanCount() > when getting metrics via JMX on backup master. It appears due to the fact > that regionNormalizerManager is null in backup masters as it's only > initialized by HMaster.finishActiveMasterInitialization(). -- This message was sent by Atlassian Jira (v8.3.4#803005)