Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/19102#discussion_r136626161
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala ---
@@ -496,7 +496,7 @@ object SparkSubmit extends CommandLineUtils with
Logging {
sysProp = "spark.executor.memory"),
OptionAssigner(args.totalExecutorCores, STANDALONE | MESOS,
ALL_DEPLOY_MODES,
sysProp = "spark.cores.max"),
- OptionAssigner(args.files, LOCAL | STANDALONE | MESOS,
ALL_DEPLOY_MODES,
+ OptionAssigner(args.files, ALL_CLUSTER_MGRS, ALL_DEPLOY_MODES,
--- End diff --
I think @jerryshao mentioned this in your other PR, but this is not
correct. YARN distributes these files through other means, so doing this might
cause other issues.
What you want to do here to make the files show up in the driver is to add
some code in `SparkContext`. There's this code at the end of `def addFile`,
which was added in SPARK-16787:
```
val timestamp = System.currentTimeMillis
if (addedFiles.putIfAbsent(key, timestamp).isEmpty) {
logInfo(s"Added file $path at $key with timestamp $timestamp")
// Fetch the file locally so that closures which are run on the
driver can still use the
// SparkFiles API to access files.
Utils.fetchFile(uri.toString, new
File(SparkFiles.getRootDirectory()), conf,
env.securityManager, hadoopConfiguration, timestamp, useCache =
false)
postEnvironmentUpdate()
}
```
You basically want to do that for all files in `spark.yarn.dist.files` when
in YARN client mode.
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