[YARN-4348] ZKRMStateStore.syncInternal shouldn't wait for sync completion for avoiding blocking ZK's event thread

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.7.2, 2.6.2
• Fix Version/s: 2.7.2, 2.6.3
• Target Version/s: 2.6.3, 2.7.3
• Hadoop Flags: Reviewed
• Assignee: Tsuyoshi Ozawa
• Reporter: Tsuyoshi Ozawa
• Created: 12/Nov/15 00:23
• Updated: 25/Oct/19 20:26
• Resolved: 08/Dec/15 15:07

Description

Jian mentioned that the current internal ZK configuration of ZKRMStateStore can cause a following situation:

1. syncInternal timeouts,
2. but sync succeeded later on.

We should use zkResyncWaitTime as the timeout value.

Issue Links

• is related to: YARN-3798 ZKRMStateStore shouldn't create new session without occurrance of SESSIONEXPIED
• is related to: YARN-4312 TestSubmitApplicationWithRMHA fails on branch-2.7 and branch-2.6 as some of the test cases time out