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Posted to issues@hbase.apache.org by "Andrey Elenskiy (Jira)" <ji...@apache.org> on 2021/01/08 17:40:00 UTC
[jira] [Commented] (HBASE-25480) NPE when getting metrics of backup
master
[ https://issues.apache.org/jira/browse/HBASE-25480?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17261478#comment-17261478 ]
Andrey Elenskiy commented on HBASE-25480:
-----------------------------------------
Updated to major because it breaks observability of backup masters making it look like there are none in Prometheus for example.
> NPE when getting metrics of backup master
> -----------------------------------------
>
> Key: HBASE-25480
> URL: https://issues.apache.org/jira/browse/HBASE-25480
> Project: HBase
> Issue Type: Brainstorming
> 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().
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