| #set( $symbol_pound = '#' ) |
| #set( $symbol_dollar = '$' ) |
| #set( $symbol_escape = '\' ) |
| /* |
| * 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 ${package}; |
| |
| import java.io.File; |
| import java.util.UUID; |
| |
| import org.apache.accumulo.minicluster.MiniAccumuloCluster; |
| import org.apache.accumulo.test.continuous.ContinuousIngest; |
| import org.apache.accumulo.test.continuous.ContinuousVerify; |
| import org.apache.commons.io.FileUtils; |
| |
| /** |
| * An example of running local map reduce against MiniAccumuloCluster |
| */ |
| public class MapReduceExample { |
| |
| public static void run(String instanceName, String zookeepers, String rootPassword, String args[]) throws Exception { |
| |
| // run continuous ingest to create data. This is not a map reduce job |
| ContinuousIngest.main(new String[] {"-i", instanceName, "-z", zookeepers, "-u", "root", "-p", rootPassword, "--table", "ci", "--num", "5000000", |
| "--batchMemory", "1000000"}); |
| |
| String outputDir = FileUtils.getTempDirectoryPath() + File.separator + "ci_verify" + UUID.randomUUID().toString(); |
| |
| try { |
| // run verify map reduce job locally. This jobs looks for holes in the linked list create by continuous ingest |
| ContinuousVerify.main(new String[] {"-D", "mapred.job.tracker=local", "-D", "fs.default.name=file:///", "-i", instanceName, "-z", zookeepers, "-u", |
| "root", "-p", rootPassword, "--table", "ci", "--output", outputDir, "--maxMappers", "4", "--reducers", "1"}); |
| } finally { |
| // delete output dir of mapreduce job |
| FileUtils.deleteQuietly(new File(outputDir)); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| File tmpDir = new File(FileUtils.getTempDirectory(), "macc-" + UUID.randomUUID().toString()); |
| |
| try { |
| MiniAccumuloCluster la = new MiniAccumuloCluster(tmpDir, "pass1234"); |
| la.start(); |
| |
| System.out.println("${symbol_escape}n ---- Running Mapred Against Accumulo${symbol_escape}n"); |
| |
| run(la.getInstanceName(), la.getZooKeepers(), "pass1234", args); |
| |
| System.out.println("${symbol_escape}n ---- Ran Mapred Against Accumulo${symbol_escape}n"); |
| |
| la.stop(); |
| } finally { |
| FileUtils.deleteQuietly(tmpDir); |
| } |
| } |
| } |