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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18103) [AMv2] If Master gives OPEN to another, if original eventually succeeds, Master will kill it
Date Tue, 22 Aug 2017 20:21:03 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16137340#comment-16137340

Hudson commented on HBASE-18103:

FAILURE: Integrated in Jenkins build HBASE-14070.HLC #263 (See [https://builds.apache.org/job/HBASE-14070.HLC/263/])
HBASE-18103 [AMv2] Changed master to throw YouAreDeadException when it (stack: rev 5895538a32d6bd2d7153e38304523caf6ea7579c)
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/MockMasterServices.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/AssignmentManager.java
* (add) hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestRogueRSAssignment.java

> [AMv2] If Master gives OPEN to another, if original eventually succeeds, Master will
kill it
> --------------------------------------------------------------------------------------------
>                 Key: HBASE-18103
>                 URL: https://issues.apache.org/jira/browse/HBASE-18103
>             Project: HBase
>          Issue Type: Sub-task
>          Components: master, proc-v2
>            Reporter: stack
>            Assignee: Umesh Agashe
>            Priority: Critical
>             Fix For: 2.0.0
>         Attachments: hbase-18103.master.001.patch, hbase-18103.master.001.patch
> If a RS is slow to open a Region, the Master will give the Region to another to open
it (In this case, was a massive set of edits to process and a load of StoreFiles to open...).
Should the original RS succeed with its open eventually, on reporting the master the successful
open, the Master currently kills the RS because the region is supposed to be elsewhere.
> This is an easy fix.
> The RS does not fully open a Region until Master gives it the go so just close the region
if master rejects the open....
> See '6.1.1 If Master gives Region to another to Open, old RS will be kill itself on reject
by Master; easy fix!' in https://docs.google.com/document/d/1eVKa7FHdeoJ1-9o8yZcOTAQbv0u0bblBlCCzVSIn69g/edit#heading=h.qtfojp9774h

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