Github user szhem commented on a diff in the pull request:
https://github.com/apache/spark/pull/19294#discussion_r140165731
--- Diff:
core/src/main/scala/org/apache/spark/internal/io/HadoopMapReduceCommitProtocol.scala
---
@@ -130,17 +130,21 @@ class HadoopMapReduceCommitProtocol(jobId: String,
path: String)
val filesToMove = taskCommits.map(_.obj.asInstanceOf[Map[String,
String]])
.foldLeft(Map[String, String]())(_ ++ _)
logDebug(s"Committing files staged for absolute locations
$filesToMove")
- val fs = absPathStagingDir.getFileSystem(jobContext.getConfiguration)
- for ((src, dst) <- filesToMove) {
- fs.rename(new Path(src), new Path(dst))
+ if (addedAbsPathFiles != null && addedAbsPathFiles.nonEmpty) {
--- End diff --
Introduced method
/**
* Checks whether there are files to be committed to an absolute output
location.
*/
private def hasAbsPathFiles: Boolean = addedAbsPathFiles != null &&
addedAbsPathFiles.nonEmpty
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