charliec05 opened a new pull request, #59191: URL: https://github.com/apache/spark/pull/59191
### What changes were proposed in this pull request? Add one entry to the Spark Core 4.3-to-4.4 migration guide describing the RDD checkpoint-file filtering change from #58535. The note explains that names such as `part-00000.bak`, `part-backup`, and `part-` are now ignored instead of causing `NumberFormatException`. Validation of numeric partition names and the contiguous partition sequence is unchanged. ### Why are the changes needed? This documents the behavior change already merged for [SPARK-58881](https://issues.apache.org/jira/browse/SPARK-58881), following the [post-merge review request](https://github.com/apache/spark/pull/58535#issuecomment-5870625252). The fix was merged into master and branch-4.x; the latter targets Spark 4.4. ### Does this PR introduce _any_ user-facing change? No. Documentation only; no additional runtime behavior change. ### How was this patch tested? - Checked the wording against the merged `ReliableCheckpointRDD.getPartitions` / `isCheckpointFile` implementation and the SPARK-58881 regression in `CheckpointStorageSuite`. - `git diff --check` passed; the only changed file is `docs/core-migration-guide.md`. - Parsed the page's YAML front matter and checked for unresolved conflict markers. - Did not rerun runtime tests because no code changes. - The full Jekyll documentation build was not run locally: the machine has Ruby 2.6 and does not have the required Bundler 2.4.22 / Ruby 3 documentation environment. Remote documentation CI is pending. ### Was this patch authored or co-authored using generative AI tooling? Generated-by: OpenAI Codex (GPT-5) This contribution is submitted under the project's Apache License 2.0. -- 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] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
