Github user liyinan926 commented on a diff in the pull request:
https://github.com/apache/spark/pull/22608#discussion_r229371556
--- Diff:
resource-managers/kubernetes/docker/src/test/scripts/populate-data.sh ---
@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+#
+# 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.
+#
+export JAVA_HOME=/usr/lib/jvm/jre-1.8.0-openjdk
+export PATH=/hadoop/bin:$PATH
+export HADOOP_CONF_DIR=/hadoop/etc/hadoop
+export HADOOP_OPTS="-Djava.net.preferIPv4Stack=true
-Dsun.security.krb5.debug=true ${HADOOP_OPTS}"
+export KRB5CCNAME=KRBCONF
+mkdir -p /hadoop/etc/data
+cp ${TMP_KRB_LOC} /etc/krb5.conf
+cp ${TMP_CORE_LOC} /hadoop/etc/hadoop/core-site.xml
+cp ${TMP_HDFS_LOC} /hadoop/etc/hadoop/hdfs-site.xml
+
+until kinit -kt /var/keytabs/hdfs.keytab
hdfs/nn.${NAMESPACE}.svc.cluster.local; do sleep 2; done
+
+until (echo > /dev/tcp/nn.${NAMESPACE}.svc.cluster.local/9000) >/dev/null
2>&1; do sleep 2; done
+
+hdfs dfsadmin -safemode wait
+
+
+hdfs dfs -mkdir -p /user/ifilonenko/
--- End diff --
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