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Posted to dev@hive.apache.org by "Paul Yang (JIRA)" <ji...@apache.org> on 2011/03/02 06:08:36 UTC

[jira] Commented: (HIVE-2022) Making JDO thread-safe by default

    [ 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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