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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16782) Create compaction specific writer that are of type ShipperListener
Date Mon, 17 Oct 2016 08:39:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15581605#comment-15581605

ramkrishna.s.vasudevan commented on HBASE-16782:

Creating specific writers will help to customise writers for compactions, like for eg. adding
a BbPool for the byte[] that gets created in finalizeBlock() can be done only for a compaction
write flow alone. 

> Create compaction specific writer that are of type ShipperListener
> ------------------------------------------------------------------
>                 Key: HBASE-16782
>                 URL: https://issues.apache.org/jira/browse/HBASE-16782
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 2.0.0
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>            Priority: Minor
>             Fix For: 2.0.0
> In HBASE-16372, there was a discussion around having Compaction specific writers so that
only those writers are of type ShipperListener. Though some of the patches attached there
was able to do it, still changin StoreFileWriter was affecting MOB and MR as the builder inside
it was private. 
> This improvement JIRA is to ensure all we create compaction specific writers.
> For now only the compaciton flow calls ShipperListener#beforeShipped() so should be fine
as of now.

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