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https://issues.apache.org/jira/browse/HIVE-789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12792249#action_12792249
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Todd Lipcon commented on HIVE-789:
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I'd be fine if you closed this as wontfix - it was depended on by some stuff a
while ago, but if you have better solutions, I'm all for them :)
> Add get_unique_id() call to metastore
> -------------------------------------
>
> Key: HIVE-789
> URL: https://issues.apache.org/jira/browse/HIVE-789
> Project: Hadoop Hive
> Issue Type: Improvement
> Components: Metastore
> Reporter: Todd Lipcon
> Attachments: hive-789.patch
>
>
> As noted in HIVE-718, it can be tough to avoid race conditions when multiple
> clients are trying to move files into the same directory. This patch adds a
> get_unique_id() call to the metastore that returns the current value from an
> incrementing JDO Sequence so that clients can avoid some races without locks.
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