[FLINK-17018] Allocates slots in bulks on pipelined region scheduling

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.11.0
• Fix Version/s: 1.12.0
• Component/s: Runtime / Coordination
• Labels: pull-request-available
• Assignee: Zhu Zhu
• Reporter: Zhu Zhu
• Created: 07/Apr/20 06:30
• Updated: 16/Jun/20 09:14
• Resolved: 16/Jun/20 09:14

Description

The DefaultExecutionSlotAllocator should allocate slot in bulks, that means the bulks of slot requests will be sent together and fail if any of the request fails.

Note this is a first step to fully functional bulk slot allocation. Current limitations would be:
1. Slot sharing will be ignored
2. Co-location constraints are not allowed
3. intra-bulk input location preferences will be ignored

Issue Links

• links to: GitHub Pull Request #12256