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From "Ajay Yadava (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FALCON-1233) Support co-existence of Oozie scheduler (coord) and Falcon native scheduler
Date Fri, 20 Nov 2015 05:19:10 GMT

    [ https://issues.apache.org/jira/browse/FALCON-1233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15015241#comment-15015241
] 

Ajay Yadava commented on FALCON-1233:
-------------------------------------

[~pallavi.rao]

What is the plan after the transition period? Will we always support both oozie and native
scheduler or the plan is to deprecate oozie after a while and move completely to native scheduler?

Also, I think instead of providing property like primary and secondary and lookup from startup.properties
the value of primary and secondary we should switch to explicitly specifying *native* and
*oozie* scheduler engine for the following reasons.

1. Primary and secondary have a notion of priority which will shift with time in favour of
the native scheduler(currently secondary). 
2. Saying schedule on native or oozie is much better and explicit expression of the intent
of the user. Otherwise users will always have to check startup.properties as which is which.

My 2 cents.


> Support co-existence of Oozie scheduler (coord) and Falcon native scheduler
> ---------------------------------------------------------------------------
>
>                 Key: FALCON-1233
>                 URL: https://issues.apache.org/jira/browse/FALCON-1233
>             Project: Falcon
>          Issue Type: Sub-task
>            Reporter: Pallavi Rao
>            Assignee: Pallavi Rao
>             Fix For: trunk
>
>         Attachments: FALCON-1233-v1.patch, FALCON-1233.patch, Migrating to Native Scheduler
- Approach v2.pdf, Migrating to Native Scheduler - Approach.pdf
>
>
> The migration should be as seamless as possible and the user should be able to migrate
to the native scheduler in a phased manner.



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