huyuanfeng2018 opened a new pull request, #4166: URL: https://github.com/apache/flink-cdc/pull/4166
## What is the purpose of the change Optimize MySQL CDC binlog split lookup from O(n) to O(log n) using binary search, reducing CPU usage from 25% to nearly 0% for tables with thousands of splits. ## Brief change log - Add `sortFinishedSplitInfos()` and `findSplitByKeyBinary()` methods - Update `BinlogSplitReader` to use binary search instead of linear search - Add comprehensive unit tests ## Performance Impact - **Time Complexity**: O(n) → O(log n) ## Verifying this change Added 6 new unit tests covering various scenarios including edge cases and consistency verification with linear search. -- 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]
