sunchao commented on a change in pull request #30019:
URL: https://github.com/apache/spark/pull/30019#discussion_r508730399
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File path: core/src/main/scala/org/apache/spark/util/HadoopFSUtils.scala
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@@ -207,18 +207,14 @@ private[spark] object HadoopFSUtils extends Logging {
// Note that statuses only include FileStatus for the files and dirs
directly under path,
// and does not include anything else recursively.
val statuses: Array[FileStatus] = try {
- fs match {
- // DistributedFileSystem overrides listLocatedStatus to make 1 single
call to namenode
- // to retrieve the file status with the file block location. The
reason to still fallback
- // to listStatus is because the default implementation would
potentially throw a
- // FileNotFoundException which is better handled by doing the lookups
manually below.
- case (_: DistributedFileSystem | _: ViewFileSystem) if !ignoreLocality
=>
- val remoteIter = fs.listLocatedStatus(path)
- new Iterator[LocatedFileStatus]() {
- def next(): LocatedFileStatus = remoteIter.next
- def hasNext(): Boolean = remoteIter.hasNext
- }.toArray
- case _ => fs.listStatus(path)
+ if (ignoreLocality) {
+ fs.listStatus(path)
Review comment:
sg - I'll switch to `listStatusIterator` and create a wrapper class for
the returned `RemoteIterator` in both cases.
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