zhengruifeng commented on code in PR #43247:
URL: https://github.com/apache/spark/pull/43247#discussion_r1452024364


##########
sql/core/src/main/scala/org/apache/spark/sql/Dataset.scala:
##########
@@ -684,6 +684,14 @@ class Dataset[T] private[sql](
    * plan may grow exponentially. It will be saved to files inside the 
checkpoint
    * directory set with `SparkContext#setCheckpointDir`.
    *
+   * @param eager Whether to checkpoint this dataframe immediately
+   *
+   * @note When checkpoint is used with eager = false, the final data that is 
checkpointed after
+   *       the first action may be different from the data that was used 
during the job due to non
+   *       deteminism of the underlying operation and retries. If checkpoint 
is used to achieve

Review Comment:
   typo `deteminism`: fix in https://github.com/apache/spark/pull/44733



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