Github user liyinan926 commented on a diff in the pull request: https://github.com/apache/spark/pull/19717#discussion_r155047041 --- Diff: core/src/main/scala/org/apache/spark/util/Utils.scala --- @@ -2744,6 +2744,25 @@ private[spark] object Utils extends Logging { } } + /** + * Check the validity of the given Kubernetes master URL and return the resolved URL. + */ + def checkAndGetK8sMasterUrl(rawMasterURL: String): String = { + require(rawMasterURL.startsWith("k8s://"), + "Kubernetes master URL must start with k8s://.") + val masterWithoutK8sPrefix = rawMasterURL.substring("k8s://".length) --- End diff -- OK, did some changes to make all supported formats work. See https://github.com/apache/spark/pull/19717/commits/51844cc60753456cdf8c2d34a660c239a3c8aa13.
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