gengliangwang commented on issue #24682: [SPARK-27762][SQL] [FOLLOWUP] Add behavior change for Avro writer in migration guide URL: https://github.com/apache/spark/pull/24682#issuecomment-495059043 This should not be a big concern. The file writing job is almost transactional since Spark follows the `FileCommitProtocol`. If failure happens during writes, the existing output file won't show up in the target path.
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