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From "Eshcar Hillel (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17373) Reverse the order of snapshot creation in the CompactingMemStore
Date Sun, 01 Jan 2017 13:04:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15791089#comment-15791089

Eshcar Hillel commented on HBASE-17373:

[~stack], [~ted_yu], other commiter watchers, please consider committing this patch so we
can move on to solve the problem by HBASE-17379 in a clean way.
No point in working on these two problems concurrently. The two patches change the same files
and therefore create conflicts. A single patch to solve both problem is harder to review and
may  cause committing a solution later than is possible for at least one of the problems.

> Reverse the order of snapshot creation in the CompactingMemStore
> ----------------------------------------------------------------
>                 Key: HBASE-17373
>                 URL: https://issues.apache.org/jira/browse/HBASE-17373
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Anastasia Braginsky
>            Assignee: Eshcar Hillel
>         Attachments: HBASE-17373-V01.patch, HBASE-17373-V02.patch, HBASE-17373-V03.patch
> In CompactingMemStore both in BASIC and EAGER cases when snapshot is created the segments
are first removed from the pipeline then added to the snapshot. This is the opposite to what
is done in the DefaultMemStore where the snapshot is firstly created with the active segment
and only after the active segment is refreshed. This JIRA is about to reverse the order in
CompactingMemStore and to make all MemStores to behave the same.

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