[YARN-10970] Standby RM should expose prom endpoint

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0, 3.3.2
• Component/s: resourcemanager
• Labels: pull-request-available
• Assignee: Max Xie
• Reporter: Max Xie
• Created: 24/Sep/21 09:20
• Updated: 30/Sep/21 00:22
• Resolved: 29/Sep/21 06:48

Description

HADOOP-16398 exports Hadoop metrics to Prometheus. 

However, standby RM redirects prom metrics to the Active.  We need to separate out prom metrics displayed so the Standby RM can also be export metrics to prometheus.

Issue Links

• is caused by: HADOOP-16398 Exports Hadoop metrics to Prometheus
• links to: GitHub Pull Request #3480