Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/17858#discussion_r115587051
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/execution/InsertIntoHiveTable.scala
---
@@ -97,12 +97,23 @@ case class InsertIntoHiveTable(
val inputPathUri: URI = inputPath.toUri
val inputPathName: String = inputPathUri.getPath
val fs: FileSystem = inputPath.getFileSystem(hadoopConf)
- val stagingPathName: String =
+ var stagingPathName: String =
if (inputPathName.indexOf(stagingDir) == -1) {
new Path(inputPathName, stagingDir).toString
} else {
inputPathName.substring(0, inputPathName.indexOf(stagingDir) +
stagingDir.length)
}
+
+ // SPARK-20594: The staging directory should be a child directory
starts with "." to avoid
+ // being deleted if we set hive.exec.stagingdir under the table
directory.
+ if (FileUtils.isSubDir(new Path(stagingPathName), inputPath, fs)
+ &&
!stagingPathName.stripPrefix(inputPathName).stripPrefix(File.separator).startsWith("."))
{
--- End diff --
fs.deleteOnExit(dir) deletes dir, but the parent directory is still there.
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