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https://issues.apache.org/jira/browse/HIVE-6710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13949649#comment-13949649
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Alan Gates commented on HIVE-6710:
----------------------------------

It should be noted that this looks like I rewrote large sections of the code, 
but I did not.  Each public method was wrapped in a try/catch block to handle 
deadlocks and retry.

> Deadlocks seen in transaction handler using mysql
> -------------------------------------------------
>
>                 Key: HIVE-6710
>                 URL: https://issues.apache.org/jira/browse/HIVE-6710
>             Project: Hive
>          Issue Type: Bug
>          Components: Locking
>    Affects Versions: 0.13.0
>            Reporter: Alan Gates
>            Assignee: Alan Gates
>             Fix For: 0.13.0
>
>         Attachments: HIVE-6710.patch
>
>
> When multiple clients attempt to obtain locks a deadlock on the mysql 
> database occasionally occurs.



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