brijrajk opened a new pull request, #12333: URL: https://github.com/apache/gluten/pull/12333
## What changes are proposed in this pull request? When `spark.io.compression.codec` is set to a codec not natively supported by the Gluten shuffle writer (e.g. `snappy`, `none`), `GlutenShuffleUtils.getCompressionCodec()` was throwing `IllegalArgumentException` inside executor tasks, crashing the job. Root cause: the `case None =>` path (no explicit Gluten codec configured) picked up `spark.io.compression.codec` and validated it against the backend's supported set (`lz4`, `zstd` for Velox). Because Gluten's native Arrow IPC-based shuffle is independent of Spark's RDD/shuffle compression, an unsupported value in `spark.io.compression.codec` should not be fatal. Fix: when `spark.io.compression.codec` contains an unsupported codec and no explicit Gluten codec is set, log a warning and fall back to `zstd`. The strict error is preserved for `spark.gluten.sql.columnar.shuffle.codec` (the user explicitly asked Gluten to use that codec). ## How was this patch tested? Unit-style test in `MiscOperatorSuite` that sets `spark.io.compression.codec=snappy` in a cloned `SparkConf` and asserts `getCompressionCodec` returns `"zstd"`. ## Was this patch authored or co-authored using generative AI tooling? Generated-by: Claude Code Related issue: #11539 -- 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]
