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Date: Tue, 22 Nov 2016 13:16:58 +0000 (UTC)
From: "Yu Li (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (HBASE-17138) Backport read-path offheap
 (HBASE-11425) to branch-1
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archived-at: Tue, 22 Nov 2016 13:17:00 -0000


     [ https://issues.apache.org/jira/browse/HBASE-17138?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yu Li updated HBASE-17138:
--------------------------
    Assignee: Yu Sun

Assigning to [~haoran] who is my workmate and did most of the backporting work, and leaving the questions to him. Sorry that he is on vacation this week (worth a rest after going through 11/11) and let's wait a little while.

> Backport read-path offheap (HBASE-11425) to branch-1
> ----------------------------------------------------
>
>                 Key: HBASE-17138
>                 URL: https://issues.apache.org/jira/browse/HBASE-17138
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Yu Li
>            Assignee: Yu Sun
>
> From the [thread|http://mail-archives.apache.org/mod_mbox/hbase-user/201611.mbox/%3CCAM7-19%2Bn7cEiY4H9iLQ3N9V0NXppOPduZwk-hhgNLEaJfiV3kA%40mail.gmail.com%3E] of sharing our experience and performance data of read-path offheap usage in Alibaba search, we could see people are positive to have HBASE-11425 in branch-1, so I'd like to create a JIRA and move the discussion and decision making here.
> Echoing some comments from the mail thread:
> Bryan:
> Is the backported patch available anywhere? If it ends up not getting officially backported to branch-1 due to 2.0 around the corner, some of us who build our own deploy may want to integrate into our builds
> Andrew:
> Yes, please, the patches will be useful to the community even if we decide not to backport into an official 1.x release.
> Enis:
> I don't see any reason why we cannot backport to branch-1.
> Ted:
> Opening a JIRA would be fine. This makes it easier for people to obtain the patch(es)
> Nick:
> From the DISCUSS thread re: EOL of 1.1, it seems we'll continue to
> support 1.x releases for some time... I would guess these will be
> maintained until 2.2 at least. Therefore, offheap patches that have seen
> production exposure seem like a reasonable candidate for backport, perhaps in a 1.4 or 1.5 release timeframe.
> Anoop:
> Because of some compatibility issues, we decide that this will be done in 2.0 only..  Ya as Andy said, it would be great to share the 1.x backported patches.


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