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From "Duo Zhang (Jira)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-25506) ServerManager affects MTTR of HMaster
Date Thu, 28 Jan 2021 15:00:00 GMT

     [ https://issues.apache.org/jira/browse/HBASE-25506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Duo Zhang resolved HBASE-25506.
-------------------------------
    Hadoop Flags: Reviewed
      Resolution: Fixed

Merged to master.

Thanks [~Bo Cui] for contriburing.

> ServerManager affects MTTR of HMaster
> -------------------------------------
>
>                 Key: HBASE-25506
>                 URL: https://issues.apache.org/jira/browse/HBASE-25506
>             Project: HBase
>          Issue Type: Improvement
>          Components: MTTR
>    Affects Versions: 3.0.0-alpha-1
>            Reporter: Bo Cui
>            Assignee: Bo Cui
>            Priority: Major
>             Fix For: 3.0.0-alpha-1
>
>         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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