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https://issues.apache.org/jira/browse/HBASE-10745?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jimmy Xiang updated HBASE-10745:
--------------------------------

       Resolution: Fixed
    Fix Version/s: 0.94.18
                   0.99.0
                   0.98.1
                   0.96.2
     Hadoop Flags: Reviewed
           Status: Resolved  (was: Patch Available)

> Access ShutdownHook#fsShutdownHooks should be synchronized
> ----------------------------------------------------------
>
>                 Key: HBASE-10745
>                 URL: https://issues.apache.org/jira/browse/HBASE-10745
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Jimmy Xiang
>            Assignee: Jimmy Xiang
>            Priority: Minor
>             Fix For: 0.96.2, 0.98.1, 0.99.0, 0.94.18
>
>         Attachments: hbase-10745.patch
>
>
> Sometimes, I got weird RuntimeException. It turns out that 
> ShutdownHook#fsShutdownHooks is a HashMap. We should synchronize its access.



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