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From "Umesh Agashe (JIRA)" <j...@apache.org>
Subject [jira] [Work started] (HBASE-18491) [AMv2] Fail UnassignProcedure if source Region Server is not online.
Date Tue, 01 Aug 2017 19:18:01 GMT

     [ https://issues.apache.org/jira/browse/HBASE-18491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Work on HBASE-18491 started by Umesh Agashe.
> [AMv2] Fail UnassignProcedure if source Region Server is not online.
> --------------------------------------------------------------------
>                 Key: HBASE-18491
>                 URL: https://issues.apache.org/jira/browse/HBASE-18491
>             Project: HBase
>          Issue Type: Bug
>          Components: amv2
>    Affects Versions: 2.0.0
>            Reporter: Umesh Agashe
>            Assignee: Umesh Agashe
>             Fix For: 2.0.0
> Currently UnassignProcedure returns success when server carrying a region is NOT online.
Assumption here is that ServerCrashProcedure will handle splitting logs etc for these regions.
When UnassignProcedure completes, MoveRegionProcedure resumes with AssignProcedure. AssignProcedure
can some times assign regions without pre-requisite steps (done either by UnassignProcedure
or ServerCrashProcedure). Fix is to fail UnassignProcedure and parent MoveRegionProcedure
if source server is not online.

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