[YARN-11509] The FederationInterceptor#launchUAM Added retry logic.

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: amrmproxy
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Shilun Fan
• Reporter: Shilun Fan
• Created: 09/Jun/23 12:22
• Updated: 27/Nov/23 09:33
• Resolved: 12/Jul/23 01:47

Description

There is a "todo" in the FederationInterceptor#registerAndAllocateWithNewSubClusters method. According to the "todo" description, the request needs to be retried to other subclusters, but changing the parameter requests  in registerAndAllocateWithNewSubClusters is not a good operation. It is better to add retry logic here. 

We don't need to worry about losing requests because when the request cannot be satisfied, the AM of the task will continue to apply, and these requests will be properly transferred to other clusters for execution.

Issue Links

• links to: GitHub Pull Request #5727