This jira tracks the effort to add additional deSelect params to the GetAppReport to make it lighter and faster.
With the current one we are facing a scalability issues.
E.g. with ~500 applications running the AppReport can reach up to 300MB in size due to the ResourceRequest in the AppInfo.
Yarn RM will return the new result faster and it will use less compute cycles to create the report and it will improve the YARN RM and Client's performances.