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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18624) Added support for clearing BlockCache
Date Fri, 08 Sep 2017 04:28:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18624?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16158103#comment-16158103
] 

ramkrishna.s.vasudevan commented on HBASE-18624:
------------------------------------------------

[~ajayjadhav]
Thanks for the patch. I think even this you can go with end point type of implementation.
Adding this in Admin is too generic and may be not useful. If this type of API is at Table
/ Region level it is alteast better but not at Admin level. 
I saw your other comments where you say this API is good for all use cases but still Admin
level is not the expected way I believe. 

> 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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