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https://issues.apache.org/jira/browse/OOZIE-1533?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13798738#comment-13798738
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Srikanth Sundarrajan commented on OOZIE-1533:
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Hi [~chitnis], Coord job level locks for materialization is perfectly fine,
however action update is also blocked as they are also serialized through the
coord job level lock. In practice my observation is that when individual
actions want to update their status as the action makes progress from one state
to another, and these update they are required to acquire a coord job level
lock. Instead if action updates were to simply be blocked on coord action
themselves, this will greatly improve the backlog catch up scenarios without
being unfair to any other coordinator or compromising on correctness of the
system.
> 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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