gaoyajun02 commented on PR #46934:
URL: https://github.com/apache/spark/pull/46934#issuecomment-2176127394

   Additionally, I have also encountered scenarios of data duplication: 
updateChunkInfo is also called after the block merge is completed. In this case 
(see code: 
[link](https://github.com/apache/spark/blob/80bba4463eba29a56cdd90642f0681c3710ce87c/common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/RemoteBlockPushResolver.java#L1571)),
 if updating the metaFile fails due to IOException: No space left on device, 
the mapTracker will not record the mapId, but the chunkTracker is not reset. 
When finalizePartition is executed later and disk space is restored, the 
metaFile update succeeds, but the mapTracker does not lack this mapId.


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