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https://issues.apache.org/jira/browse/OOZIE-1538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13768471#comment-13768471
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Srikanth Sundarrajan commented on OOZIE-1538:
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Notes from my discussion with [~tucu00] offline:
Use Zookeeper as distributed countdown-locks/latches. Integration of Oozie and
Zookeeper to do this could be done using a zookeeper URIHandler implementation
and modeling the countdown-locks/latches as additional datasets in the
coordinator definition. Thus the materialization of the action will depend on
the zk://<URI> being available.
> Coordinator actions concurrency control across coord jobs at user level
> -----------------------------------------------------------------------
>
> Key: OOZIE-1538
> URL: https://issues.apache.org/jira/browse/OOZIE-1538
> Project: Oozie
> Issue Type: Improvement
> Reporter: Srikanth Sundarrajan
>
> Currently coord action concurrency is at coord job level. If the user has
> several coord jobs it can still flood the cluster.
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