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From "Paul Yang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-2022) Making JDO thread-safe by default
Date Wed, 02 Mar 2011 05:08:36 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13001283#comment-13001283
] 

Paul Yang commented on HIVE-2022:
---------------------------------

+1 Will commit once tests pass.

> Making JDO thread-safe by default
> ---------------------------------
>
>                 Key: HIVE-2022
>                 URL: https://issues.apache.org/jira/browse/HIVE-2022
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Ning Zhang
>            Assignee: Ning Zhang
>         Attachments: HIVE-2022.patch
>
>
> If there are multiple thread accessing metastore concurrently, there are cases that JDO
threw exceptions because of concurrent access of HashMap inside JDO. Setting javax.jdo.option.Multithreaded
to true solves this issue. 

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