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Posted to issues@hbase.apache.org by "Rajeshbabu Chintaguntla (Jira)" <ji...@apache.org> on 2023/04/18 10:53:00 UTC

[jira] [Work stopped] (HBASE-27667) Normalizer can skip picking presplit regions while preparing merge plans

     [ https://issues.apache.org/jira/browse/HBASE-27667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on HBASE-27667 stopped by Rajeshbabu Chintaguntla.
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> Normalizer can skip picking presplit regions while preparing merge plans
> ------------------------------------------------------------------------
>
>                 Key: HBASE-27667
>                 URL: https://issues.apache.org/jira/browse/HBASE-27667
>             Project: HBase
>          Issue Type: Improvement
>          Components: Normalizer
>            Reporter: Rajeshbabu Chintaguntla
>            Assignee: Rajeshbabu Chintaguntla
>            Priority: Major
>             Fix For: 2.6.0, 3.0.0-alpha-4, 2.5.5
>
>
> Normalizer can be used to merge the regions which become emtpy post TTL expiry.
> But it's picking the presplit regions as well. We can skip picking presplit regions while preparing the merge plans by looking at the number of storefiles along with size. Presplit regions have zero storefiles where as the TTL expired regions have 1 storefile with zero size.



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