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Posted to dev@hbase.apache.org by "Duo Zhang (Jira)" <ji...@apache.org> on 2021/04/23 07:56:00 UTC

[jira] [Resolved] (HBASE-25754) StripeCompactionPolicy should support compacting cold regions

     [ https://issues.apache.org/jira/browse/HBASE-25754?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Duo Zhang resolved HBASE-25754.
-------------------------------
    Hadoop Flags: Reviewed
      Resolution: Fixed

Pushed to branch-2.3+.

Thanks [~Xiaolin Ha] for contributing.

> StripeCompactionPolicy should support compacting cold regions
> -------------------------------------------------------------
>
>                 Key: HBASE-25754
>                 URL: https://issues.apache.org/jira/browse/HBASE-25754
>             Project: HBase
>          Issue Type: Improvement
>          Components: Compaction
>    Affects Versions: 3.0.0-alpha-1, 2.0.0, 1.4.13
>            Reporter: Xiaolin Ha
>            Assignee: Xiaolin Ha
>            Priority: Minor
>             Fix For: 3.0.0-alpha-1, 2.5.0, 2.4.3, 2.3.6
>
>
> Cold regions cannot perform compactions by flushing memstores, while CompactionChecker can period check need compaction regions.
> But some cold regions using stripe store engine may not be checked to perform compaction by`needCompaction()` or trigger automatic major compactions, because StripeCompactionPolicy#shouldPerformMajorCompaction() always returns false. 
> StripeCompactionPolicy never performs automatic major compactions now.
> But cold regions' outdated data need to be cleaned.
>  
>  



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