gaoyajun02 commented on code in PR #38333:
URL: https://github.com/apache/spark/pull/38333#discussion_r1012468152
##########
core/src/main/scala/org/apache/spark/storage/ShuffleBlockFetcherIterator.scala:
##########
@@ -794,7 +794,15 @@ final class ShuffleBlockFetcherIterator(
// since the last call.
val msg = s"Received a zero-size buffer for block $blockId from
$address " +
s"(expectedApproxSize = $size,
isNetworkReqDone=$isNetworkReqDone)"
- throwFetchFailedException(blockId, mapIndex, address, new
IOException(msg))
+ if (blockId.isShuffleChunk) {
+ logWarning(msg)
+
pushBasedFetchHelper.initiateFallbackFetchForPushMergedBlock(blockId, address)
Review Comment:
And then the size of the original shuffle block is not 0, because there is
no FetchFailedException in the stage
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