Github user lianhuiwang commented on a diff in the pull request:
https://github.com/apache/spark/pull/1385#discussion_r15055059
--- Diff: core/src/main/scala/org/apache/spark/rdd/HadoopRDD.scala ---
@@ -128,25 +123,13 @@ class HadoopRDD[K, V](
// Returns a JobConf that will be used on slaves to obtain input splits
for Hadoop reads.
protected def getJobConf(): JobConf = {
- val conf: Configuration = broadcastedConf.value.value
- if (conf.isInstanceOf[JobConf]) {
- // A user-broadcasted JobConf was provided to the HadoopRDD, so
always use it.
- conf.asInstanceOf[JobConf]
- } else if (HadoopRDD.containsCachedMetadata(jobConfCacheKey)) {
+ val conf: JobConf = broadcastedConf.value.value
+ if (HadoopRDD.containsCachedMetadata(jobConfCacheKey)) {
--- End diff --
yes,i agree with you. broadcastedConf is cached by blockManager in Broadcast
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