SteNicholas opened a new pull request, #3026: URL: https://github.com/apache/celeborn/pull/3026
### What changes were proposed in this pull request? Introduce `ApplicationTotalCount` and `ApplicationFallbackCount` metric to record the total and fallback count of application. ### Why are the changes needed? There is no any metric to record the total count of application running with celeborn shuffle and engine bulit-in shuffle and the fallback count of application. Meanwhile, the fallback of Flink shuffle is based on job granularity rather than shuffle granularity. Follw up https://github.com/apache/celeborn/pull/3012#issuecomment-2553488532. ### Does this PR introduce _any_ user-facing change? No. ### How was this patch tested? - `DefaultMetaSystemSuiteJ#testShuffleAndApplicationCountWithFallback` - `RatisMasterStatusSystemSuiteJ#testShuffleAndApplicationCountWithFallback` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
