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Diffstat (limited to 'sandbox/ctrezzo/src/Test2.java')
| -rw-r--r-- | sandbox/ctrezzo/src/Test2.java | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sandbox/ctrezzo/src/Test2.java b/sandbox/ctrezzo/src/Test2.java new file mode 100644 index 0000000000..2142b3e0d2 --- /dev/null +++ b/sandbox/ctrezzo/src/Test2.java @@ -0,0 +1,70 @@ +/* + * 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. + */ + +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.fs.Path; +import org.apache.hadoop.io.IntWritable; +import org.apache.hadoop.io.Text; +import org.apache.hadoop.mapred.JobClient; +import org.apache.hadoop.mapred.JobConf; + + +public class Test2 { + + /* + * This submits a Map-Reduce job without using runJar, or the main method in WordCount. + */ + public static void main(String[] args) { + + //this path is a HDFS path + Path inputPath = new Path("/file01.txt"); + //this path is a HDFS path + Path outputPath = new Path("/output7"); + + org.apache.hadoop.examples.WordCount myCount = new org.apache.hadoop.examples.WordCount(); + Configuration conf = new Configuration(); + + myCount.setConf(conf); + + JobConf mapredConf = new JobConf(myCount.getConf(), org.apache.hadoop.examples.WordCount.class); + mapredConf.setJobName("wordcount"); + + // the keys are words (strings) + mapredConf.setOutputKeyClass(Text.class); + // the values are counts (ints) + mapredConf.setOutputValueClass(IntWritable.class); + + mapredConf.setMapperClass(org.apache.hadoop.examples.WordCount.MapClass.class); + mapredConf.setCombinerClass(org.apache.hadoop.examples.WordCount.Reduce.class); + mapredConf.setReducerClass(org.apache.hadoop.examples.WordCount.Reduce.class); + + mapredConf.setInputPath(inputPath); + mapredConf.setOutputPath(outputPath); + + try { + JobClient.runJob(mapredConf); + } + catch(Exception e) { + System.out.println("ERROR: " + e); + } + } + +} + + |