waitinfuture commented on code in PR #2609:
URL: https://github.com/apache/celeborn/pull/2609#discussion_r1699315638


##########
client-spark/spark-2/src/main/java/org/apache/spark/shuffle/celeborn/SparkUtils.java:
##########
@@ -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:
   BTW, encoding stageAttemptId into attemptNumber as this PR does is also 
accessible for me :)



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