jiang13021 commented on code in PR #2609:
URL: https://github.com/apache/celeborn/pull/2609#discussion_r1672297292
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client-spark/spark-2/src/main/java/org/apache/spark/shuffle/celeborn/SparkUtils.java:
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@@ -136,6 +136,11 @@ public static int celebornShuffleId(
}
}
+ public static int getMapAttemptNumber(TaskContext context) {
+ assert (context.stageAttemptNumber() < (1 << 15) &&
context.attemptNumber() < (1 << 16));
+ return (context.stageAttemptNumber() << 16) | context.attemptNumber();
+ }
+
Review Comment:
I reproducing the issue at https://github.com/apache/celeborn/pull/2611,
without that PR, the barrier stage will reuse shuffleId and we will get 2
success MapperEnd, "stage 1 stageAttempt 0 map 0 taskAttempt 0" and "stage 1
stageAttempt 1 map 0 taskAttempt 0"
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