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From "Sean Busbey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18066) Get with closest_row_before on "hbase:meta" can return empty Cell during region merge/split
Date Fri, 26 May 2017 14:23:04 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16026324#comment-16026324

Sean Busbey commented on HBASE-18066:

I probably won't have time to chase down docker problems until next week at the earliest.
Probably best to send a note to dev@hbase looking for help. [~Apache9] ran into the same problem
on another jira.

> Get with closest_row_before on "hbase:meta" can return empty Cell during region merge/split
> -------------------------------------------------------------------------------------------
>                 Key: HBASE-18066
>                 URL: https://issues.apache.org/jira/browse/HBASE-18066
>             Project: HBase
>          Issue Type: Bug
>          Components: hbase, regionserver
>    Affects Versions: 1.3.1
>         Environment: Linux (16.04.2), MacOS 10.11.6.
> Standalone and distributed HBase setup.
>            Reporter: Andrey Elenskiy
>            Assignee: Zheng Hu
>         Attachments: HBASE-18066.branch-1.1.v1.patch, HBASE-18066.branch-1.1.v1.patch,
HBASE-18066.branch-1.1.v1.patch, HBASE-18066.branch-1.3.v1.patch, HBASE-18066.branch-1.3.v1.patch,
HBASE-18066.branch-1.v1.patch, HBASE-18066.branch-1.v2.patch, HBASE-18066.branch-1.v3.patch,
> During region split/merge there's a brief period of time where doing a "Get" with "closest_row_before=true"
on "hbase:meta" may return empty "GetResponse.result.cell" field even though parent, splitA
and splitB regions are all in "hbase:meta". Both gohbase (https://github.com/tsuna/gohbase)
and AsyncHBase (https://github.com/OpenTSDB/asynchbase) interprets this as "TableDoesNotExist",
which is returned to the client.
> Here's a gist that reproduces this problem: https://gist.github.com/Timoha/c7a236b768be9220e85e53e1ca53bf96.
Note that you have to use older HTable client (I used 1.2.4) as current versions ignore `Get.setClosestRowBefore(bool)`

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