StephanEwen commented on issue #6608: [FLINK-10203]Support truncate method for old Hadoop versions in HadoopRecoverableFsDataOutputStream URL: https://github.com/apache/flink/pull/6608#issuecomment-415507439 I see, that is a fair reason. There are parallel efforts to add Parquet support to the old BucketingSink, but I see the point. Before going into a deep review, can you update the description with how exactly the legacy truncater should be working: what copy and rename steps it does and how it behaves under failure / repeated calls. Also, I would suggest to name it `Truncater` rather than `TruncateManager`. Too many managers all around already ;-)
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