waitinfuture commented on PR #2335:
URL: 
https://github.com/apache/incubator-celeborn/pull/2335#issuecomment-1966206151

   > > additionally, conditional mapping spark internal configuration may 
involve a lot of inconsistency. for example, should we map 
`spark.shuffle.service.port` to celeborn's something? due the different 
implementation details, Celeborn won't benefit from zstd buffer pool feature, 
if we map `spark.io.compression.codec` to `celeborn.shuffle.compression.codec`, 
how could the user know that `spark.io.compression.zstd.bufferPool.enabled` 
does not take effect?
   > 
   > Make sense! So should we add some logs to show that spark.shuffle.xxx will 
not take effect when using celeborn?
   
   Thanks @JinHelin404 for looking into this. Another reason why Celeborn 
doesn't automatically map Spark's configuration is that Celeborn supports 
multiple engines (i.e. Spark, Flink, MR, MR3), it unreasonable to respect a 
particular engine's configuration :)


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