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From "huaxiang sun (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-15261) Make Throwable t in DaughterOpener volatile
Date Sat, 13 Feb 2016 16:26:18 GMT

    [ https://issues.apache.org/jira/browse/HBASE-15261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15146044#comment-15146044
] 

huaxiang sun commented on HBASE-15261:
--------------------------------------

Thanks [~tedyu] for reviewing. I do not know how to reproduce this, any suggestion is welcome.
A user run into an exception which could be caused by this. However, there is no logs, I am
not sure if this is the real cause. 

> Make Throwable t in DaughterOpener volatile
> -------------------------------------------
>
>                 Key: HBASE-15261
>                 URL: https://issues.apache.org/jira/browse/HBASE-15261
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>            Reporter: huaxiang sun
>            Assignee: huaxiang sun
>            Priority: Minor
>         Attachments: HBASE-15261-001.patch
>
>
> In the region split process, daughter regions are opened in different threads, Throwable
t is set in these threads and it is checked in the calling thread. Need to make it volatile
so the checking will not miss any exceptions from opening daughter regions.



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