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https://issues.apache.org/jira/browse/OOZIE-3561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16979281#comment-16979281
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Denes Bodo commented on OOZIE-3561:
-----------------------------------

cc [~pbacsko], [~rkanter]

> Forkjoin validation is slow when there are many actions in chain
> ----------------------------------------------------------------
>
>                 Key: OOZIE-3561
>                 URL: https://issues.apache.org/jira/browse/OOZIE-3561
>             Project: Oozie
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 5.1.0
>            Reporter: Denes Bodo
>            Assignee: Denes Bodo
>            Priority: Critical
>              Labels: performance
>
> In case we have a workflow which has, let's say, 80 actions after each other:
> {{a1 -> a2 -> ... a80}}
> then the validator code "never" finishes.
> Currently the validation (in my understanding) does depth first checks from 
> the start node and runs in time of n! . This is confirmed as when we split 
> this huge workflow into two 40-element workflow then we get 2x ~40!-step in 
> validation instead of ~80! steps.
> Guys, could you please confirm or disprove my theory?
> Thanks



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