Ngone51 commented on a change in pull request #33451:
URL: https://github.com/apache/spark/pull/33451#discussion_r676734662
##########
File path:
common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/ExternalShuffleBlockResolver.java
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@@ -374,6 +379,27 @@ public int removeBlocks(String appId, String execId,
String[] blockIds) {
.collect(Collectors.toMap(Pair::getKey, Pair::getValue));
}
+ /**
+ * Diagnose the possible cause of the shuffle data corruption by verify the
shuffle checksums
+ */
+ public Cause diagnoseShuffleBlockCorruption(
+ String appId,
+ String execId,
+ int shuffleId,
+ long mapId,
+ int reduceId,
+ long checksumByReader,
+ String algorithm) {
+ ExecutorShuffleInfo executor = executors.get(new AppExecId(appId, execId));
+ String fileName = "shuffle_" + shuffleId + "_" + mapId + "_0.checksum." +
algorithm;
Review comment:
After we pass the `algorithm` to the server, finding the checksum file
is no longer an issue. cc @mridulm @otterc
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