Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/8358#discussion_r42297847
--- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala ---
@@ -655,15 +655,19 @@ private[spark] object Utils extends Logging {
// created the directories already, and that they are secured so
that only the
// user has access to them.
getYarnLocalDirs(conf).split(",")
+ } else if (conf.getenv("SPARK_LOCAL_DIRS") != null) {
+ conf.getenv("SPARK_LOCAL_DIRS").split(",")
} else if (conf.getenv("SPARK_EXECUTOR_DIRS") != null) {
conf.getenv("SPARK_EXECUTOR_DIRS").split(File.pathSeparator)
+ } else if (conf.getenv("MESOS_DIRECTORY") != null
+ && !conf.getBoolean("spark.shuffle.service.enabled", false)) {
+ // running inside Mesos and have a local directory to use
--- End diff --
This needs to be expanded:
```
// Mesos already creates a directory per Mesos task. Spark should use that
directory
// instead so all temporary files are automatically cleaned up when the
Mesos task ends.
// Note that we don't want this if the shuffle service is enabled because
we want to
// continue to serve shuffle files after the executors that wrote them have
already exited.
```
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