Ngone51 commented on a change in pull request #33034:
URL: https://github.com/apache/spark/pull/33034#discussion_r661094997
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File path:
common/network-common/src/main/java/org/apache/spark/network/client/TransportClient.java
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@@ -222,7 +223,7 @@ public void sendMergedBlockMetaReq(
handler.addRpcRequest(requestId, callback);
RpcChannelListener listener = new RpcChannelListener(requestId, callback);
channel.writeAndFlush(
- new MergedBlockMetaRequest(requestId, appId, shuffleId,
reduceId)).addListener(listener);
+ new MergedBlockMetaRequest(requestId, appId, shuffleId,
shuffleSequenceId, reduceId)).addListener(listener);
Review comment:
> Even if a task continues to fetch older shuffle data, it wont be
allowed to 'commit' the results since the stage it ended up fetching for would
have been cancelled (both for ResultStage and for ShuffleMapStage, the result
of the task will end up being ignored).
That's true.
I just want to confirm that there could be a case for the task to fetch
older shuffle data.
(The thread is too long. Sorry if I miss some context which already
mentioned before. )
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