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https://issues.apache.org/jira/browse/HBASE-25506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bo Cui reassigned HBASE-25506:
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Assignee: Bo Cui
> ServerManager affects MTTR of HMaster
> -------------------------------------
>
> Key: HBASE-25506
> URL: https://issues.apache.org/jira/browse/HBASE-25506
> Project: HBase
> Issue Type: Improvement
> Components: MTTR
> Reporter: Bo Cui
> Assignee: Bo Cui
> Priority: Major
> Attachments: image-2021-01-14-17-44-16-091.png,
> image-2021-01-14-17-44-42-181.png
>
>
> https://github.com/apache/hbase/blob/3488c44a21612aae1835fc3e91a4a12ed2abb8b7/hbase-server/src/main/java/org/apache/hadoop/hbase/master/ServerManager.java#L925
> If a cluster has N+W regions, this
> removeDeletedRegionFromLoadedFlushedSequenceIds takes a long time...
> !image-2021-01-14-17-44-16-091.png!
> !image-2021-01-14-17-44-42-181.png!
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