| /* |
| * 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.pig.pigunit; |
| |
| import org.apache.pig.test.MiniGenericCluster; |
| |
| |
| /** |
| * Starts an on-demand mini cluster that requires no set up. |
| * |
| * <p>It can be useful if you don't want to restart the cluster between each run of test and don't |
| * want to set up a real cluster. |
| * |
| * <p>CLASSPATH needs to contain: pig.jar and piggybank.jar |
| * <pre> |
| * export CLASSPATH=/path/pig.jar:/path/piggybank.jar |
| * java org.apache.pig.pigunit.MiniClusterRunner |
| * </pre> |
| * |
| * <p>Possible improvements |
| * <ul> |
| * <li>add a main in MiniCluster</li> |
| * <li>make MiniCluster configurable (number of maps...)</li> |
| * <li>make MiniCluster use a default properties for chosing the hadoop conf dir |
| * (e.g. minicluster.conf.dir) instead of always using |
| * System.getProperty("user.home"), "pigtest/conf/"</li> |
| * <li>use CLI option</li> |
| * <li>make a shell wrapper</li> |
| * </ul> |
| */ |
| public class MiniClusterRunner { |
| public static void main(String[] args) { |
| System.setProperty("hadoop.log.dir", "/tmp/pigunit"); |
| MiniGenericCluster.buildCluster(); |
| } |
| } |