zenfenan edited a comment on issue #11307: [FLINK-16371] [BulkWriter] Fix Hadoop Compression BulkWriter URL: https://github.com/apache/flink/pull/11307#issuecomment-596946292 @kl0u None of the existing tests fail.. not when they are triggered in IDE or during mvn build/test phase but when a job is built and deployed, it immediately fails with the `NotSerializableException` pointing to the CompressionCodec which is being used. I guess the test cases dint fail because they are running locally i.e. in a `MockEnvironment`. I'm not entirely sure though if that is the reason. P.S. We deployed on Yarn and it failed.
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