Github user ifilonenko commented on a diff in the pull request:
https://github.com/apache/spark/pull/20669#discussion_r174630216
--- Diff:
examples/src/main/scala/org/apache/spark/examples/SparkRemoteFileTest.scala ---
@@ -0,0 +1,48 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// scalastyle:off println
+package org.apache.spark.examples
+
+import java.io.File
+
+import org.apache.spark.SparkFiles
+import org.apache.spark.sql.SparkSession
+
+/** Usage: SparkRemoteFileTest [file] */
+object SparkRemoteFileTest {
--- End diff --
To test the presence of a remote file being mounted on the executors via
the spark-submit being run by the driver. Should I add a Javadoc
(`HDFSTest.scala` didn't include one) but I can if necessary
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