Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/4636#discussion_r137213196
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/util/HadoopUtils.java ---
@@ -0,0 +1,114 @@
+/*
+ * 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.
+ */
+package org.apache.flink.runtime.util;
+
+import org.apache.flink.configuration.ConfigConstants;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.io.Text;
+import org.apache.hadoop.security.UserGroupInformation;
+import org.apache.hadoop.security.token.Token;
+import org.apache.hadoop.security.token.TokenIdentifier;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.File;
+import java.util.Collection;
+
+/**
+ * Utility class for working with Hadoop-related classes. This should only
be used if Hadoop
+ * is on the classpath.
+ */
+public class HadoopUtils {
+
+ private static final Logger LOG =
LoggerFactory.getLogger(HadoopUtils.class);
+
+ private static final Text HDFS_DELEGATION_TOKEN_KIND = new
Text("HDFS_DELEGATION_TOKEN");
+
+ public static Configuration
getHadoopConfiguration(org.apache.flink.configuration.Configuration
flinkConfiguration) {
+
+ Configuration retConf = new Configuration();
+
+ // We need to load both core-site.xml and hdfs-site.xml to
determine the default fs path and
+ // the hdfs configuration
+ // Try to load HDFS configuration from Hadoop's own
configuration files
+ // 1. approach: Flink configuration
+ final String hdfsDefaultPath =
flinkConfiguration.getString(ConfigConstants
+ .HDFS_DEFAULT_CONFIG, null);
--- End diff --
indeed, I'm fixing
---
