docs/pyspark4.x: fix spark-submit GCS config for Spark 4.2#186
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…park 4.2 Hadoop 3.5.0's core-default.xml sets fs.gs.block.size=64m, which gcs-connector <=4.0.4/3.1.18 fails to parse via Configuration.getLong(), causing a NumberFormatException on any gs:// read. Document the --conf workaround and the upstream fix (GoogleCloudDataproc/hadoop-connectors@2dd981a, PR #1731). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
…ty matrix Spark 4.2's Docker image bundles Hadoop 3.5.0 (hadoop-client-api-3.5.0.jar), not the 3.4.1 already documented for Spark 4.0.x. Add matrix rows for it and flag the fs.gs.block.size issue affecting both gcs-connector 4.0.x and 3.1.x on that combo. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Summary
Document the
fs.gs.block.sizefix needed when runningspark-submitagainst the Spark 4.2 standalone cluster: Hadoop 3.5.0'score-default.xmldefaultsfs.gs.block.size=64m, whichgcs-connector<=4.0.4/3.1.18 fails to parse viaConfiguration.getLong(), causing aNumberFormatExceptionon anygs://read. Add the--conf spark.hadoop.fs.gs.block.size=67108864workaround to the recommended command, with a note pointing to the upstream fix (GoogleCloudDataproc/hadoop-connectors@2dd981a, PR #1731) that hasn't shipped in a release yet.Add Spark 4.2.x / Hadoop 3.5.0 rows to the GCS compatibility matrix, which previously only documented Spark 4.0.x / Hadoop 3.4.1.
Test plan
NumberFormatExceptionwith the documentedspark-submitcommand against the Spark 4.2 standalone cluster.spark-submitwith--conf spark.hadoop.fs.gs.block.size=67108864added resolves the error and the job completes.hadoop-client-api-3.5.0.jar) viadocker exec.🤖 Generated with Claude Code