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https://issues.apache.org/jira/browse/SPARK-24015?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyukjin Kwon resolved SPARK-24015.
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Resolution: Invalid
Let me leave this resolved but please let me know if I am mistaken.
> 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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