xumingming opened a new pull request, #3708: URL: https://github.com/apache/celeborn/pull/3708
### What changes were proposed in this pull request? When an AQE-skewed partition is split into N sub-ranges, the first sub-range's CommitMetadata object was stored by reference in both subRangeToCommitMetadataMap and currentCommitMetadataForReducer. Each subsequent sibling RPC mutated that object in-place via addCommitData(), silently inflating the TreeMap entry from bytes(A) to bytes(A)+bytes(siblings). Any task retry then sent the correct bytes(A) but found the inflated value, causing a permanent CelebornIOException mismatch and job abort. ### Why are the changes needed? This is a bug of E2E Integrity Check. ### Does this PR resolve a correctness bug? - [ ] Yes ### Does this PR introduce _any_ user-facing change? - [ ] Yes ### How was this patch tested? Added Unit Test. -- 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]
