[SPARK-24015] Does method SchedulerBackend.isReady is really well implemented?

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Invalid
• Affects Version/s: 2.3.0
• Component/s: Scheduler, Spark Core
• Assignee: Unassigned
• Reporter: chenk
• Created: 18/Apr/18 15:19
• Updated: 12/Dec/22 18:10
• Resolved: 19/Apr/18 03:07

Description

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.