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https://issues.apache.org/jira/browse/HBASE-4059?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ted Yu resolved HBASE-4059.
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Resolution: Fixed
Hadoop Flags: [Reviewed]
> If a region is split during RS shutdown process, the daughter regions are NOT
> made online by master
> ---------------------------------------------------------------------------------------------------
>
> Key: HBASE-4059
> URL: https://issues.apache.org/jira/browse/HBASE-4059
> Project: HBase
> Issue Type: Bug
> Components: master, regionserver
> Affects Versions: 0.90.1, 0.90.2, 0.90.3
> Reporter: Weihua Jiang
> Assignee: Ted Yu
> Attachments: 4059.txt
>
>
> When a region is splitted during the RS shutdown process, RS just written the
> daughter region infos to META, but not make them online. Then, for master, in
> its ServerShutdownHandler, the function isDaughterMissing() uses
> FindDaughterVisitor to check whether daughter region is OK. However, this
> visitor doesn't check whether the value for HConstants.SERVER_QUALIFIER
> carries non-null value.
> Therefore for the scenario, isDaughterMissing() returns false, skipping the
> following line:
> assignmentManager.assign(daughter, true);
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