vanzin commented on a change in pull request #23698: [SPARK-26766][CORE] Remove
the list of filesystems from
HadoopDelegationTokenProvider.obtainDelegationTokens
URL: https://github.com/apache/spark/pull/23698#discussion_r252862407
##########
File path:
core/src/main/scala/org/apache/spark/deploy/security/HadoopFSDelegationTokenProvider.scala
##########
@@ -133,3 +133,45 @@ private[deploy] class HadoopFSDelegationTokenProvider
if (renewIntervals.isEmpty) None else Some(renewIntervals.min)
}
}
+
+private[deploy] object HadoopFSDelegationTokenProvider {
+ def hadoopFSsToAccess(
+ sparkConf: SparkConf,
+ hadoopConf: Configuration): Set[FileSystem] = {
+ val filesystemsToAccess = sparkConf.get(KERBEROS_FILESYSTEMS_TO_ACCESS)
+
+ val defaultFS = FileSystem.get(hadoopConf)
+ val master = sparkConf.get("spark.master", null)
+ val stagingFS = if (master != null && master.contains("yarn")) {
+ sparkConf.get(STAGING_DIR)
+ .map(new Path(_).getFileSystem(hadoopConf))
+ .getOrElse(defaultFS)
Review comment:
Feels weird to have this fall back to `defaultFS` when the default FS is
treated separately. An `Option` seems better.
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