[jira] [Commented] (SPARK-24015) Does method SchedulerBackend.isReady is really well implemented?

["Hyukjin Kwon (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-24015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16443509#comment-16443509 ] 

Hyukjin Kwon commented on SPARK-24015:
--------------------------------------

[~chenk], is this a question? I think we would have a better answer if you ask this to a mailing list. We don't usually open a JIRA for a question.
I think it's better to ask it to the mailing list first before describing here as a bug.

> Does method SchedulerBackend.isReady is really well implemented?
> ----------------------------------------------------------------
>
>                 Key: SPARK-24015
>                 URL: https://issues.apache.org/jira/browse/SPARK-24015
>             Project: Spark
>          Issue Type: Bug
>          Components: Scheduler
>    Affects Versions: 2.3.0
>            Reporter: chenk
>            Priority: Minor
>
> The mothod *isReady* in the interface *SchedulerBackend*,which implement by *CoarseGrainedSchedulerBackend* , as well as has default value is True.
> And, the implemention in *CoarseGrainedSchedulerBackend* use *sufficientResourcesRegistered* mothed to check it , which default value is True too.
> So,What does the meaning of the *isReady* method? Because it will alway return true actually.



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