[YARN-11587] Fix the possible issue of duplicate registration in the metrics queue.

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 3.4.0
• Component/s: yarn
• Labels: pull-request-available

Environment

3.3.0

• Target Version/s: 3.5.0
• Assignee: Unassigned
• Reporter: Max Xie
• Created: 08/Oct/23 07:13
• Updated: 16/Jan/24 07:49

Description

In our cluster, there has been an issue of duplicate registration of queue metrics, causing the Resourcemanager to fail and exit. Through code analysis, it is possible that adding the synchronized keyword is required when registering the metrics queue method.

Issue Links

• links to: GitHub Pull Request #6157