zuston opened a new pull request, #6623: URL: https://github.com/apache/hadoop/pull/6623
### Description of PR When using the `SingleConstraintAppPlacementAllocator` with scheduling request in our internal cluster, I found the huge performance regression from the metric of `allocateAvgTime`. After digging this bug, I found this dangerous bug that will always checking the non-pending resource apps due to missing of desc pending resource for one app for the async scheduling threads. ### How was this patch tested? Has been applied in our internal cluster ### For code changes: - [ ] Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')? - [ ] Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation? - [ ] If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under [ASF 2.0](http://www.apache.org/legal/resolved.html#category-a)? - [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`, `NOTICE-binary` files? -- 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: common-issues-unsubscr...@hadoop.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org