/*
* The MIT License
*
* Copyright (c) 2004-2009, Sun Microsystems, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package hudson.plugins.hadoop;
import hudson.remoting.Callable;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.server.namenode.NameNode;
import java.io.File;
import java.io.IOException;
import java.net.InetSocketAddress;
/**
* Starts a {@link NameNode}.
*/
class NameNodeStartTask implements Callable<Void,IOException> {
private final File hudsonRoot;
private final String hdfsUrl;
private final int hdfsPort;
private boolean format = Boolean.getBoolean("hadoop.format");
NameNodeStartTask(File hudsonRoot, String hdfsUrl, int hdfsPort) {
this.hudsonRoot = hudsonRoot;
this.hdfsUrl = hdfsUrl;
this.hdfsPort = hdfsPort;
}
public Void call() throws IOException {
File hadoopRoot = new File(hudsonRoot,"hadoop");
if(hadoopRoot.mkdirs())
format = true;
final Configuration conf = new Configuration();
// location of the name node
conf.set("fs.default.name",hdfsUrl);
conf.set("dfs.http.address", "0.0.0.0:"+HTTP_PORT);
// namespace node stores information here
File namedir = new File(hadoopRoot, "namedir");
if(namedir.mkdirs())
format = true;
conf.set("dfs.name.dir", namedir.getPath());
// dfs node stores information here
File datadir = new File(hadoopRoot, "datadir");
if(datadir.mkdirs())
format = true;
conf.set("dfs.data.dir", datadir.getPath());
conf.setInt("dfs.replication",1);
if(format) {
System.out.println("Formatting HDFS");
NameNode.format(conf);
}
System.out.println("Starting namenode");
NameNode.createNameNode(new String[0], conf);
return null;
}
private static final long serialVersionUID = 1L;
public static final int HTTP_PORT = 50070;
}