zhijiangW commented on issue #7713: [FLINK-10995][network] Copy intermediate serialization results only once for broadcast mode URL: https://github.com/apache/flink/pull/7713#issuecomment-469110871 @pnowojski , thanks for the kindly suggestion! The current broadcast usages for `RecordWriter` is only for emitting `Watermark` and `StreamStatus`. Your worries might be right and I also ever considered that it might bring bad effects for special scenarios if switching frequently. Maybe the conservative way is only making the special improvement path for `BroadcastRecordWriter` which switches the mode in emitting `LatencyMarker` currently. If you approve this way, I would adjust the codes then. :)
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