Github user steveloughran commented on a diff in the pull request:
https://github.com/apache/spark/pull/9232#discussion_r42897540
--- Diff: yarn/src/main/scala/org/apache/spark/deploy/yarn/Client.scala ---
@@ -322,8 +322,10 @@ private[spark] class Client(
// multiple times, YARN will fail to launch containers for the app
with an internal
// error.
val distributedUris = new HashSet[String]
- obtainTokenForHiveMetastore(sparkConf, hadoopConf, credentials)
- obtainTokenForHBase(sparkConf, hadoopConf, credentials)
+ if (isClusterMode) {
--- End diff --
suggestion from @dougb , but yes, I didn't think that through. It's not for
the driver, its for the nodes. Will fix
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