| /** |
| * 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.hama.bsp; |
| |
| import java.io.IOException; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.LongWritable; |
| import org.apache.hadoop.io.NullWritable; |
| import org.apache.hadoop.io.Text; |
| import org.apache.hama.Constants; |
| import org.apache.hama.HamaCluster; |
| import org.apache.hama.HamaConfiguration; |
| import org.apache.hama.bsp.sync.SyncException; |
| import org.apache.hama.commons.util.KeyValuePair; |
| |
| public class TestPartitioning extends HamaCluster { |
| |
| public static final Log LOG = LogFactory.getLog(TestPartitioning.class); |
| |
| public static String TMP_OUTPUT = "/tmp/test-example/"; |
| public static final String TMP_OUTPUT_PATH = "/tmp/test-example/output.txt"; |
| public static Path OUTPUT_PATH = new Path(TMP_OUTPUT); |
| |
| protected HamaConfiguration configuration; |
| |
| // these variables are preventing from rebooting the whole stuff again since |
| // setup and teardown are called per method. |
| |
| public TestPartitioning() { |
| configuration = new HamaConfiguration(); |
| configuration.set("bsp.master.address", "localhost"); |
| configuration.set("hama.child.redirect.log.console", "true"); |
| assertEquals("Make sure master addr is set to localhost:", "localhost", |
| configuration.get("bsp.master.address")); |
| configuration.set("bsp.local.dir", "/tmp/hama-test"); |
| configuration.set(Constants.ZOOKEEPER_QUORUM, "localhost"); |
| configuration.setInt(Constants.ZOOKEEPER_CLIENT_PORT, 21810); |
| configuration.set("hama.sync.client.class", |
| org.apache.hama.bsp.sync.ZooKeeperSyncClientImpl.class |
| .getCanonicalName()); |
| } |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| } |
| |
| @Override |
| public void tearDown() throws Exception { |
| super.tearDown(); |
| } |
| |
| public void testPartitioner() throws Exception { |
| |
| Configuration conf = new Configuration(); |
| conf.set("bsp.local.dir", "/tmp/hama-test/partitioning"); |
| conf.setBoolean("bsp.input.runtime.partitioning", true); |
| BSPJob bsp = new BSPJob(new HamaConfiguration(conf)); |
| bsp.setJobName("Test partitioning with input"); |
| bsp.setBspClass(PartionedBSP.class); |
| bsp.setNumBspTask(2); |
| conf.setInt(Constants.ZOOKEEPER_SESSION_TIMEOUT, 600); |
| bsp.setInputFormat(TextInputFormat.class); |
| bsp.setOutputFormat(NullOutputFormat.class); |
| FileInputFormat.setInputPaths(bsp, "../CHANGES.txt,../README.md"); |
| bsp.setPartitioner(HashPartitioner.class); |
| assertTrue(bsp.waitForCompletion(true)); |
| |
| FileSystem fs = FileSystem.get(conf); |
| fs.delete(OUTPUT_PATH, true); |
| } |
| |
| public static class PartionedBSP extends |
| BSP<LongWritable, Text, NullWritable, NullWritable, NullWritable> { |
| |
| @Override |
| public void bsp( |
| BSPPeer<LongWritable, Text, NullWritable, NullWritable, NullWritable> peer) |
| throws IOException, SyncException, InterruptedException { |
| long numOfPairs = 0; |
| KeyValuePair<LongWritable, Text> readNext = null; |
| while ((readNext = peer.readNext()) != null) { |
| LOG.debug(readNext.getKey().get() + " / " |
| + readNext.getValue().toString()); |
| numOfPairs++; |
| } |
| |
| assertTrue(numOfPairs > 2); |
| } |
| } |
| |
| } |