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https://issues.apache.org/jira/browse/OOZIE-592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13142741#comment-13142741
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Mohammad Kamrul Islam commented on OOZIE-592:
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As part of storing and displaying the pig stats and job counter(#OOZIE-588), we
might need to modify the WFInstance.
Therefore, we want to know your plan of when the change might be available. We
don't want to modify the same thing that would create possible merging issue.
> new WF library implementation (lite2)
> -------------------------------------
>
> Key: OOZIE-592
> URL: https://issues.apache.org/jira/browse/OOZIE-592
> Project: Oozie
> Issue Type: Improvement
> Reporter: Alejandro Abdelnur
> Assignee: Alejandro Abdelnur
>
> Current WF library implementation (lite) has the following issues/limitations:
> * Under certain conditions kill/failure all running actions are not being
> properly killed (leaving things in odd states and/or runaway actions)
> * Exceptions are properly propagated handled
> * start/end/kill/fork/join nodes do not provide hooks to create entries in
> the DB in the WF actions table (useful for WF visualization)
> In addition, the following new features would allow more flexible WF
> programming:
> * support for a SUSPEND node, to programmatically suspend a WF in certain
> condition.
> * support for SHARD/UNSHARD nodes, similar to FORK/JOIN but it is a single
> execution lane that gets multiplexed N times
> These 2 new features would be exposed in a new schema.
> The implementation approach for this would be broken down into a few JIRAs:
> * WF lite2 implementation with testcases
> * WF lite2 node handlers
> * WF lite2 service
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