[YARN-8482] [Router] Add cache for fast answers to getApps

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: federation, router
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Shilun Fan
• Reporter: Giovanni Matteo Fumarola
• Created: 29/Jun/18 20:41
• Updated: 12/Feb/24 06:46
• Resolved: 27/Aug/22 17:15

Issue Links

• links to: GitHub Pull Request #4769