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https://issues.apache.org/jira/browse/OOZIE-1533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13798292#comment-13798292
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Mona Chitnis commented on OOZIE-1533:
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This was a design decision to allow stability in multi-tenancy, and not having
one users' coord materialization cannibalize another (if first user has high
number of coord actions eligible to be materialized)
> Coordinator action materialization is too slow due to coarse job level locks
> ----------------------------------------------------------------------------
>
> Key: OOZIE-1533
> URL: https://issues.apache.org/jira/browse/OOZIE-1533
> Project: Oozie
> Issue Type: Improvement
> Reporter: Srikanth Sundarrajan
>
> Coord job level lock introduces high contention. Instead introduce coord
> action level locking whenever appropriate
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