Github user aramesh117 commented on the issue: https://github.com/apache/spark/pull/17789 @zsxwing Sorry for the delay! Thank you so much for your review and I saw a bit of your patch - it looks very nice. I have just one question - would it be a good idea to separate the codecs for compressing checkpoints and for network communication? I see that you reuse the same codec. If we wanted to isolate the effect of the RDD checkpointing, we would not be able to do that easily if these are coupled.
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