Ngone51 commented on a change in pull request #33034:
URL: https://github.com/apache/spark/pull/33034#discussion_r660750549
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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:
Although Spark always cancels tasks from the failed stage, there could
be a race condition between canceling and task running, right? So, it seems
possible to me to fetch the older shuffle data.
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