/**
* 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.hadoop.hdfs.web;
import java.net.URI;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hdfs.DFSConfigKeys;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.MiniDFSNNTopology;
import org.apache.hadoop.hdfs.server.namenode.ha.HATestUtil;
import org.junit.Assert;
import org.junit.Test;
/** Test whether WebHDFS can connect to an HA cluster */
public class TestWebHDFSForHA {
private static final String LOGICAL_NAME = "minidfs";
@Test
public void test() throws Exception {
Configuration conf = new Configuration();
conf.setBoolean(DFSConfigKeys.DFS_WEBHDFS_ENABLED_KEY, true);
MiniDFSNNTopology topo = new MiniDFSNNTopology()
.addNameservice(new MiniDFSNNTopology.NSConf(LOGICAL_NAME).addNN(
new MiniDFSNNTopology.NNConf("nn1")).addNN(
new MiniDFSNNTopology.NNConf("nn2")));
MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf).nnTopology(topo)
.numDataNodes(3).build();
HATestUtil.setFailoverConfigurations(cluster, conf, LOGICAL_NAME);
FileSystem fs = null;
try {
cluster.waitActive();
final String uri = WebHdfsFileSystem.SCHEME + "://" + LOGICAL_NAME;
fs = (WebHdfsFileSystem) FileSystem.get(new URI(uri), conf);
cluster.transitionToActive(0);
final Path dir = new Path("/test");
Assert.assertTrue(fs.mkdirs(dir));
cluster.shutdownNameNode(0);
cluster.transitionToActive(1);
final Path dir2 = new Path("/test2");
Assert.assertTrue(fs.mkdirs(dir2));
} finally {
if (fs != null) {
fs.close();
}
cluster.shutdown();
}
}
}