[YARN-11663] [Federation] Add Cache Entity Nums Limit.

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.1, 3.5.0
• Component/s: federation, yarn
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Assignee: Shilun Fan
• Reporter: Yuan Luo
• Created: 14/Mar/24 10:10
• Updated: 01/Apr/24 23:49
• Resolved: 01/Apr/24 23:48

Description

hi slfan1989 After apply this feature to our prod env, I found the memory of the router keeps growing over time. This is because after jobs finished, we won't access the expired key to trigger cleanup mechanism. Is it better to add cache maximum number limit？

Issue Links

• is caused by: YARN-10885 Make FederationStateStoreFacade#getApplicationHomeSubCluster use JCache
• links to: GitHub Pull Request #6662