steveloughran commented on code in PR #36070:
URL: https://github.com/apache/spark/pull/36070#discussion_r1029595674
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core/src/main/scala/org/apache/spark/internal/io/HadoopMapReduceCommitProtocol.scala:
##########
@@ -194,19 +196,33 @@ class HadoopMapReduceCommitProtocol(
if (hasValidPath) {
val (allAbsPathFiles, allPartitionPaths) =
taskCommits.map(_.obj.asInstanceOf[(Map[String, String],
Set[String])]).unzip
- val fs = stagingDir.getFileSystem(jobContext.getConfiguration)
+ val hadoopConf = jobContext.getConfiguration
+ val fs = stagingDir.getFileSystem(hadoopConf)
val filesToMove = allAbsPathFiles.foldLeft(Map[String, String]())(_ ++ _)
logDebug(s"Committing files staged for absolute locations $filesToMove")
val absParentPaths = filesToMove.values.map(new Path(_).getParent).toSet
if (dynamicPartitionOverwrite) {
logDebug(s"Clean up absolute partition directories for overwriting:
$absParentPaths")
- absParentPaths.foreach(fs.delete(_, true))
+ absParentPaths.foreach(path => path.getFileSystem(hadoopConf)
+ .delete(path, true))
}
logDebug(s"Create absolute parent directories: $absParentPaths")
- absParentPaths.foreach(fs.mkdirs)
+ absParentPaths.foreach(path =>
path.getFileSystem(hadoopConf).mkdirs(path))
for ((src, dst) <- filesToMove) {
- if (!fs.rename(new Path(src), new Path(dst))) {
+ val srcPath = new Path(src)
+ val dstPath = new Path(dst)
+ val srcFs = srcPath.getFileSystem(hadoopConf)
+ val dstFs = dstPath.getFileSystem(hadoopConf)
+ // Copying files across different file systems
+ if (needCopy(srcPath, dstPath, srcFs, dstFs)) {
+ if (!FileUtil.copy(srcFs, srcFs.listStatus(srcPath).map(_.getPath),
dstFs, dstPath,
Review Comment:
can i highlight something i've noticed here, that copy() command stos on src
read() returning -1, without doing any checks to validate file length, not
great.
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