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From "Ning Zhang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-2022) Making JDO thread-safe by default
Date Wed, 02 Mar 2011 04:48:36 GMT

     [ https://issues.apache.org/jira/browse/HIVE-2022?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ning Zhang updated HIVE-2022:
-----------------------------

    Status: Patch Available  (was: Open)

> 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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