[FLINK-9827] ResourceManager may receive outdate report of slots status from task manager

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.5.0
• Component/s: Runtime / Coordination
• Assignee: shuai.xu
• Reporter: shuai.xu
• Created: 12/Jul/18 04:10
• Updated: 27/Mar/20 13:51
• Resolved: 27/Mar/20 13:51

Description

TaskExecutor will report its slot status to resource manager in heartbeat, but this is in a different thread with the main rpc  thread. So it may happen that rm request a slot from task executor but then receive a heartbeat saying the slot not assigned. This will cause the slot be freed and assigned again.

Issue Links

• duplicates: FLINK-12863 Race condition between slot offerings and AllocatedSlotReport