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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18624) Added support for clearing BlockCache
Date Mon, 18 Sep 2017 05:22:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16169601#comment-16169601
] 

Anoop Sam John commented on HBASE-18624:
----------------------------------------

After some more thinking I think its ok to add this as a high end Admin API.  Ya might be
useful while perf testing with out restart of RS. Pls attach a latest patch if needed. Will
review then.

> Added support for clearing BlockCache
> -------------------------------------
>
>                 Key: HBASE-18624
>                 URL: https://issues.apache.org/jira/browse/HBASE-18624
>             Project: HBase
>          Issue Type: Sub-task
>    Affects Versions: 2.0.0, 1.3.0
>            Reporter: Ajay Jadhav
>            Assignee: Ajay Jadhav
>             Fix For: 1.4.0
>
>         Attachments: HBASE-18624.branch-1.001.patch
>
>
> Bulk loading the primary HBase cluster triggers a lot of compactions resulting in archival/
creation
> of multiple HFiles. This process will cause a lot of items to become stale in replica’s
BlockCache.
> This patch will help users to clear the block cache for a given table by either using
shell or API.



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