Github user zsxwing commented on a diff in the pull request:
https://github.com/apache/spark/pull/17024#discussion_r111830180
--- Diff:
core/src/main/scala/org/apache/spark/rdd/ReliableCheckpointRDD.scala ---
@@ -133,9 +136,14 @@ private[spark] object ReliableCheckpointRDD extends
Logging {
val broadcastedConf = sc.broadcast(
new SerializableConfiguration(sc.hadoopConfiguration))
// TODO: This is expensive because it computes the RDD again
unnecessarily (SPARK-8582)
+ val startTime = System.currentTimeMillis()
--- End diff --
nit: please use `nanoTime` to measure the duration. See
https://github.com/databricks/scala-style-guide/tree/f6cce9ab32e7b288638f2f1615d20a3b6d16ef2e#misc_currentTimeMillis_vs_nanoTime
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