Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/4507#discussion_r24427208
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -285,7 +285,7 @@ private[spark] object Utils extends Logging {
} else {
// Restrict file permissions via chmod if available.
// For Windows this step is ignored.
- if (!isWindows && !chmod700(dir)) {
+ if (!isWindows && (conf==null ||
!isRunningInYarnContainer(conf)) && !chmod700(dir)) {
--- End diff --
I'd open a new PR vs master. The logic here is getting a little hairy,
although it's not crazy. How about just setting permission to 750?
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