Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/7021#discussion_r33970908
--- Diff: core/src/main/scala/org/apache/spark/rdd/RDDCheckpointData.scala
---
@@ -44,6 +46,26 @@ private[spark] class RDDCheckpointData[T:
ClassTag](@transient rdd: RDD[T])
import CheckpointState._
+ // Because SparkContext is transient in RDD, so we can't get the id and
checkpointDir later.
+ // So keep a copy of the id and checkpointDir.
+ // The id of RDD
+ val rddId: Int = rdd.id
+
+ // The path the checkpoint data will write to.
+ val checkpointDir = rdd.context.checkpointDir
+ @transient var checkpointPath: Path = null
+ @transient var fs: FileSystem = null
+ if (checkpointDir.isDefined) {
+ checkpointPath = new Path(checkpointDir.get, "rdd-" + rddId)
+ fs = checkpointPath.getFileSystem(rdd.context.hadoopConfiguration)
+ if (!fs.mkdirs(checkpointPath)) {
+ throw new SparkException("Failed to create checkpoint path " +
checkpointPath)
+ }
+ }
+
+ val broadcastedConf = rdd.context.broadcast(
--- End diff --
please make all of these private
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