/**
* 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.server.namenode;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.DFSTestUtil;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.protocol.FSConstants;
import org.apache.hadoop.hdfs.protocol.FSConstants.DatanodeReportType;
import org.apache.hadoop.net.NetworkTopology;
import org.junit.Test;
public class TestStartupDefaultRack {
private static Configuration conf;
private static MiniDFSCluster cluster;
@Test
public void testStartup() throws IOException {
conf = new Configuration();
conf.setClass("dfs.block.replicator.classname", BlockPlacementPolicyConfigurable.class,
BlockPlacementPolicy.class);
conf.set(FSConstants.DFS_HOSTS, "hosts");
cluster = new MiniDFSCluster(conf, 3,
new String[] { "/r1", "/r2", NetworkTopology.DEFAULT_RACK }, null, true, false);
DFSTestUtil util = new DFSTestUtil("/testStartup", 10, 10, 1024);
util.createFiles(cluster.getFileSystem(), "/");
util.checkFiles(cluster.getFileSystem(), "/");
assertEquals(2, cluster.getNameNode().getDatanodeReport(DatanodeReportType.LIVE).length);
cluster.shutdown();
}
}