tgravescs commented on a change in pull request #35085:
URL: https://github.com/apache/spark/pull/35085#discussion_r799868266
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File path: core/src/main/scala/org/apache/spark/storage/DiskBlockManager.scala
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@@ -94,7 +95,13 @@ private[spark] class DiskBlockManager(
} else {
val newDir = new File(localDirs(dirId), "%02x".format(subDirId))
if (!newDir.exists()) {
- Files.createDirectory(newDir.toPath)
+ // SPARK-37618: Create dir as group writable so files within can be
deleted by the
+ // shuffle service
+ val path = newDir.toPath
+ Files.createDirectory(path)
+ val currentPerms = Files.getPosixFilePermissions(path)
+ currentPerms.add(PosixFilePermission.GROUP_WRITE)
Review comment:
A DAG does not mean the entire application, so it removes the
intermediate data before the yarn application finishes. It is for the same
purpose as this PR, when you have very large or long running jobs it wants to
cleanup that data. https://issues.apache.org/jira/browse/TEZ-3362
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