| /** |
| * 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 org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.mapreduce.v2.MiniMRYarnCluster; |
| import org.apache.hadoop.mapreduce.v2.jobhistory.JHAdminConfig; |
| import org.apache.hadoop.yarn.conf.YarnConfiguration; |
| import org.apache.hadoop.yarn.service.Service.STATE; |
| |
| /** |
| * An adapter for MiniMRYarnCluster providing a MiniMRClientCluster interface. |
| * This interface could be used by tests across both MR1 and MR2. |
| */ |
| public class MiniMRYarnClusterAdapter implements MiniMRClientCluster { |
| |
| private MiniMRYarnCluster miniMRYarnCluster; |
| |
| private static final Log LOG = LogFactory.getLog(MiniMRYarnClusterAdapter.class); |
| |
| public MiniMRYarnClusterAdapter(MiniMRYarnCluster miniMRYarnCluster) { |
| this.miniMRYarnCluster = miniMRYarnCluster; |
| } |
| |
| @Override |
| public Configuration getConfig() { |
| return miniMRYarnCluster.getConfig(); |
| } |
| |
| @Override |
| public void start() { |
| miniMRYarnCluster.start(); |
| } |
| |
| @Override |
| public void stop() { |
| miniMRYarnCluster.stop(); |
| } |
| |
| @Override |
| public void restart() { |
| if (!miniMRYarnCluster.getServiceState().equals(STATE.STARTED)){ |
| LOG.warn("Cannot restart the mini cluster, start it first"); |
| return; |
| } |
| Configuration oldConf = new Configuration(getConfig()); |
| String callerName = oldConf.get("minimrclientcluster.caller.name", |
| this.getClass().getName()); |
| int noOfNMs = oldConf.getInt("minimrclientcluster.nodemanagers.number", 1); |
| oldConf.setBoolean(YarnConfiguration.YARN_MINICLUSTER_FIXED_PORTS, true); |
| oldConf.setBoolean(JHAdminConfig.MR_HISTORY_MINICLUSTER_FIXED_PORTS, true); |
| stop(); |
| miniMRYarnCluster = new MiniMRYarnCluster(callerName, noOfNMs); |
| miniMRYarnCluster.init(oldConf); |
| miniMRYarnCluster.start(); |
| } |
| |
| } |