| /** |
| * 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 |
| * <p/> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p/> |
| * 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.mapred.gridmix; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.mapred.ClusterStatus; |
| import org.apache.hadoop.mapred.JobClient; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.apache.hadoop.mapred.gridmix.GenerateData.GenSplit; |
| import org.apache.hadoop.mapreduce.InputSplit; |
| import org.apache.hadoop.security.UserGroupInformation; |
| import org.apache.hadoop.tools.rumen.JobStory; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Random; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| public enum JobCreator { |
| |
| LOADJOB { |
| @Override |
| public GridmixJob createGridmixJob( |
| Configuration conf, long submissionMillis, JobStory jobdesc, Path outRoot, |
| UserGroupInformation ugi, int seq) throws IOException { |
| return new LoadJob(conf, submissionMillis, jobdesc, outRoot, ugi, seq); |
| }}, |
| |
| SLEEPJOB { |
| private String[] hosts; |
| |
| @Override |
| public GridmixJob createGridmixJob( |
| Configuration conf, long submissionMillis, JobStory jobdesc, Path outRoot, |
| UserGroupInformation ugi, int seq) throws IOException { |
| int numLocations = conf.getInt(SLEEPJOB_RANDOM_LOCATIONS, 0); |
| if (numLocations < 0) numLocations=0; |
| if ((numLocations > 0) && (hosts == null)) { |
| final JobClient client = new JobClient(new JobConf(conf)); |
| ClusterStatus stat = client.getClusterStatus(true); |
| final int nTrackers = stat.getTaskTrackers(); |
| final ArrayList<String> hostList = new ArrayList<String>(nTrackers); |
| final Pattern trackerPattern = Pattern.compile("tracker_([^:]*):.*"); |
| final Matcher m = trackerPattern.matcher(""); |
| for (String tracker : stat.getActiveTrackerNames()) { |
| m.reset(tracker); |
| if (!m.find()) { |
| continue; |
| } |
| final String name = m.group(1); |
| hostList.add(name); |
| } |
| hosts = hostList.toArray(new String[hostList.size()]); |
| } |
| return new SleepJob(conf, submissionMillis, jobdesc, outRoot, ugi, seq, |
| numLocations, hosts); |
| }}; |
| |
| public static final String GRIDMIX_JOB_TYPE = "gridmix.job.type"; |
| public static final String SLEEPJOB_RANDOM_LOCATIONS = |
| "gridmix.sleep.fake-locations"; |
| |
| public abstract GridmixJob createGridmixJob( |
| final Configuration conf, long submissionMillis, final JobStory jobdesc, |
| Path outRoot, UserGroupInformation ugi, final int seq) throws IOException; |
| |
| public static JobCreator getPolicy( |
| Configuration conf, JobCreator defaultPolicy) { |
| return conf.getEnum(GRIDMIX_JOB_TYPE, defaultPolicy); |
| } |
| } |