[FLINK-14730] Add pending slots for job

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Component/s: Runtime / REST
• Assignee: Unassigned
• Reporter: lining
• Created: 13/Nov/19 02:29
• Updated: 06/Nov/20 10:34
• Resolved: 06/Nov/20 10:34

Description

Current

If the resource requested by the job can‘t be satisfied by the cluster, the job will remain in the scheduling state.

The user couldn't know the scheduler is blocked by which slot request.

Proposal

We could add a rest handler to show information about pending requests in SlotPoolImpl.