wForget commented on PR #2283:
URL: 
https://github.com/apache/incubator-uniffle/pull/2283#issuecomment-2533685340

   > Nothing will happen, because we bypass the getReader in the 
DelegationRssShuffleManager, so the acutall getReader invoking will happen in 
the underlying concrate shuffle manager. But this is an obvious bug, if someone 
wants to implement custom shuffle manager, he will follow the incorrect 
examples.
   
   I prefer to infer the appropriate shuffle manager from ShuffleHandle rather 
than overriding the shuffle manager configuration on the dirver side, so that 
we can implement stage-level fallback.


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