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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18796) Admin#isTableAvailable returns incorrect result before daughter regions are opened
Date Fri, 22 Sep 2017 18:01:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18796?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16176823#comment-16176823
] 

Hudson commented on HBASE-18796:
--------------------------------

SUCCESS: Integrated in Jenkins build HBase-1.3-IT #213 (See [https://builds.apache.org/job/HBase-1.3-IT/213/])
Revert "HBASE-18796 Admin#isTableAvailable returns incorrect result (apurtell: rev 0068ae83bb44b4e97052ff031d97c930f2330a73)
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestEndToEndSplitTransaction.java
* (edit) hbase-client/src/main/java/org/apache/hadoop/hbase/MetaTableAccessor.java
* (edit) hbase-server/src/test/java/org/apache/hadoop/hbase/TestMetaTableAccessor.java


> Admin#isTableAvailable returns incorrect result before daughter regions are opened
> ----------------------------------------------------------------------------------
>
>                 Key: HBASE-18796
>                 URL: https://issues.apache.org/jira/browse/HBASE-18796
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 1.3.1
>            Reporter: Abhishek Singh Chouhan
>            Assignee: Abhishek Singh Chouhan
>             Fix For: 2.0.0, 3.0.0, 1.4.0, 1.3.2, 1.5.0
>
>         Attachments: HBASE-18796-addendum.branch-1.patch, HBASE-18796-addendum.master.patch,
HBASE-18796.branch-1.001.patch, HBASE-18796.branch-1.001.patch, HBASE-18796.branch-1.002.patch,
HBASE-18796.branch-1.003.patch, HBASE-18796.master.001.patch
>
>
> Admin#isTableAvailable checks if it can getServerName for the meta entries it reads.
During the time of split server location are added to the meta entries in MetaTableAccessor#splitRegion
although the description of the method says "Does not add the location information to the
daughter regions since they are not open yet.". At this point during the split daughter regions
are not actually open, so we can get to a state where parent is offline, daughters are not
yet open but isTableAvailable returns true.



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