Github user jerryshao commented on a diff in the pull request:
https://github.com/apache/spark/pull/18962#discussion_r133609050
--- Diff: core/src/main/scala/org/apache/spark/deploy/SparkSubmit.scala ---
@@ -330,18 +330,45 @@ object SparkSubmit extends CommandLineUtils {
args.archives = Option(args.archives).map(resolveGlobPaths(_,
hadoopConf)).orNull
// In client mode, download remote files.
+ var localPrimaryResource: String = null
+ var localJars: String = null
+ var localPyFiles: String = null
if (deployMode == CLIENT) {
- args.primaryResource = Option(args.primaryResource).map {
+ localPrimaryResource = Option(args.primaryResource).map {
downloadFile(_, targetDir, args.sparkProperties, hadoopConf)
}.orNull
- args.jars = Option(args.jars).map {
+ localJars = Option(args.jars).map {
downloadFileList(_, targetDir, args.sparkProperties, hadoopConf)
}.orNull
- args.pyFiles = Option(args.pyFiles).map {
+ localPyFiles = Option(args.pyFiles).map {
downloadFileList(_, targetDir, args.sparkProperties, hadoopConf)
}.orNull
}
+ if (clusterManager == YARN) {
+ def isNoneFsFileExist(paths: String): Boolean = {
+ Option(paths).exists { p =>
+ p.split(",").map(_.trim).filter(_.nonEmpty).exists { path =>
+ val url = Utils.resolveURI(path)
+ url.getScheme match {
+ case "http" | "https" | "ftp" => true
+ case _ => false
+ }
+ }
+ }
+ }
+
+ // Spark on YARN doesn't support upload remote resources from http,
https or ftp server
+ // directly to distributed cache, so print a warning and exit the
process.
+ if (isNoneFsFileExist(args.jars) ||
--- End diff --
The code
[here](https://github.com/apache/spark/blob/b8ffb51055108fd606b86f034747006962cd2df3/resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala#L346)
compare two FSs and copy src to dest if FS is different. AFAIK there's no http
scheme in Hadoop, so `val srcFs = srcPath.getFileSystem(hadoopConf)` this
probably will throw exception.
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