| /** |
| * 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.mapred; |
| |
| import java.io.IOException; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.fs.permission.FsPermission; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.v2.MiniMRYarnCluster; |
| import org.apache.hadoop.util.JarFinder; |
| |
| /** |
| * A MiniMRCluster factory. In MR2, it provides a wrapper MiniMRClientCluster |
| * interface around the MiniMRYarnCluster. While in MR1, it provides such |
| * wrapper around MiniMRCluster. This factory should be used in tests to provide |
| * an easy migration of tests across MR1 and MR2. |
| */ |
| public class MiniMRClientClusterFactory { |
| |
| public static MiniMRClientCluster create(Class<?> caller, int noOfNMs, |
| Configuration conf) throws IOException { |
| return create(caller, caller.getName(), noOfNMs, conf); |
| } |
| |
| public static MiniMRClientCluster create(Class<?> caller, String identifier, |
| int noOfNMs, |
| Configuration conf) throws IOException { |
| |
| if (conf == null) { |
| conf = new Configuration(); |
| } |
| |
| FileSystem fs = FileSystem.get(conf); |
| |
| Path testRootDir = new Path("target", identifier + "-tmpDir") |
| .makeQualified(fs); |
| Path appJar = new Path(testRootDir, "MRAppJar.jar"); |
| |
| // Copy MRAppJar and make it private. |
| Path appMasterJar = new Path(MiniMRYarnCluster.APPJAR); |
| |
| fs.copyFromLocalFile(appMasterJar, appJar); |
| fs.setPermission(appJar, new FsPermission("744")); |
| |
| Job job = Job.getInstance(conf); |
| |
| job.addFileToClassPath(appJar); |
| |
| Path callerJar = new Path(JarFinder.getJar(caller)); |
| Path remoteCallerJar = new Path(testRootDir, callerJar.getName()); |
| fs.copyFromLocalFile(callerJar, remoteCallerJar); |
| fs.setPermission(remoteCallerJar, new FsPermission("744")); |
| job.addFileToClassPath(remoteCallerJar); |
| |
| MiniMRYarnCluster miniMRYarnCluster = |
| new MiniMRYarnCluster(identifier, noOfNMs); |
| job.getConfiguration().set("minimrclientcluster.caller.name", |
| identifier); |
| job.getConfiguration().setInt("minimrclientcluster.nodemanagers.number", |
| noOfNMs); |
| miniMRYarnCluster.init(job.getConfiguration()); |
| miniMRYarnCluster.start(); |
| |
| return new MiniMRYarnClusterAdapter(miniMRYarnCluster); |
| } |
| |
| } |