yrun.commands.Ykill.java Source code

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Here is the source code for yrun.commands.Ykill.java

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/**
 * 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 yrun.commands;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.hadoop.yarn.api.records.ApplicationId;
import org.apache.hadoop.yarn.client.api.YarnClient;
import org.apache.hadoop.yarn.conf.YarnConfiguration;

import com.google.common.base.Splitter;

public class Ykill {
    static {
        LogUtil.setupLog();
    }

    public static void main(String[] args) throws IOException {
        YarnClient yarnClient = YarnClient.createYarnClient();
        YarnConfiguration yarnConfiguration = new YarnConfiguration();
        yarnClient.init(yarnConfiguration);
        yarnClient.start();
        boolean debug = false;
        try {
            Splitter splitter = Splitter.on('_');
            for (String arg : args) {
                List<String> list = toList(splitter.split(arg));
                if (list.size() != 3) {
                    System.err.println("Application Id " + arg + " is not a valid application id.");
                } else {
                    String prefix = list.get(0);
                    if (!prefix.equals("application")) {
                        System.err.println("Application Id " + arg + " is not a valid application id.");
                    } else {
                        try {
                            long clusterTimestamp = Long.parseLong(list.get(1));
                            int id = Integer.parseInt(list.get(2));
                            ApplicationId applicationId = ApplicationId.newInstance(clusterTimestamp, id);
                            yarnClient.killApplication(applicationId);
                            System.out.println("Killed\t" + arg + "");
                        } catch (Exception e) {
                            if (debug) {
                                e.printStackTrace();
                            }
                            System.err.println("Error while trying to kill " + arg + ".");
                        }
                    }
                }
            }
        } finally {
            yarnClient.stop();
            yarnClient.close();
        }
    }

    private static List<String> toList(Iterable<String> split) {
        List<String> lst = new ArrayList<String>();
        for (String s : split) {
            lst.add(s);
        }
        return lst;
    }
}