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https://issues.apache.org/jira/browse/HIVE-2109?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13018714#comment-13018714
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Namit Jain commented on HIVE-2109:
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Add a new configuration parameter, where the DDLs do not need a lock.
This parmeter's default value can be false, i.e the current behavior is
not changed.
> No lock for some non-mapred tasks.
> ----------------------------------
>
> Key: HIVE-2109
> URL: https://issues.apache.org/jira/browse/HIVE-2109
> Project: Hive
> Issue Type: Improvement
> Reporter: He Yongqiang
> Assignee: He Yongqiang
> Attachments: HIVE-2109.1.patch
>
>
> do not do lock for some DDLTask or data move task.
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