| /** |
| * 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.mnemonic.mapred; |
| |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.NullWritable; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.apache.hadoop.mapred.InputFormat; |
| import org.apache.hadoop.mapred.OutputFormat; |
| import org.apache.hadoop.mapred.RecordReader; |
| import org.apache.hadoop.mapred.RecordWriter; |
| import org.apache.hadoop.mapred.FileSplit; |
| import org.apache.hadoop.mapred.TaskAttemptID; |
| import org.apache.hadoop.mapred.TaskAttemptContext; |
| import org.apache.hadoop.mapred.TaskAttemptContextImpl; |
| import org.apache.hadoop.mapreduce.TaskType; |
| import org.apache.mnemonic.DurableType; |
| import org.apache.mnemonic.Utils; |
| import org.apache.mnemonic.hadoop.MneConfigHelper; |
| import org.apache.mnemonic.hadoop.MneDurableInputValue; |
| import org.apache.mnemonic.hadoop.MneDurableOutputSession; |
| import org.apache.mnemonic.hadoop.MneDurableOutputValue; |
| import org.apache.mnemonic.hadoop.mapred.MneInputFormat; |
| import org.apache.mnemonic.hadoop.mapred.MneOutputFormat; |
| import org.testng.AssertJUnit; |
| import org.testng.annotations.AfterClass; |
| import org.testng.annotations.BeforeClass; |
| import org.testng.annotations.Test; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.Random; |
| |
| public class MneMapredLongDataTest { |
| |
| private static final String DEFAULT_BASE_WORK_DIR = "target" + File.separator + "test" + File.separator + "tmp"; |
| private static final String DEFAULT_WORK_DIR = DEFAULT_BASE_WORK_DIR + File.separator + "long-data"; |
| private static final String SERVICE_NAME = "pmalloc"; |
| private static final long SLOT_KEY_ID = 7L; |
| private Path m_workdir; |
| private JobConf m_conf; |
| private FileSystem m_fs; |
| private Random m_rand; |
| private TaskAttemptID m_taid; |
| private TaskAttemptContext m_tacontext; |
| private long m_reccnt = 500000L; |
| private long m_sum = 0L; |
| |
| @BeforeClass |
| public void setUp() throws IOException { |
| m_workdir = new Path( |
| System.getProperty("test.tmp.dir", DEFAULT_WORK_DIR)); |
| m_conf = new JobConf(); |
| m_rand = Utils.createRandom(); |
| |
| try { |
| m_fs = FileSystem.getLocal(m_conf).getRaw(); |
| m_fs.delete(m_workdir, true); |
| m_fs.mkdirs(m_workdir); |
| } catch (IOException e) { |
| throw new IllegalStateException("bad fs init", e); |
| } |
| |
| m_taid = new TaskAttemptID("jt", 0, TaskType.MAP, 0, 0); |
| m_tacontext = new TaskAttemptContextImpl(m_conf, m_taid); |
| |
| MneConfigHelper.setDir(m_conf, MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX, m_workdir.toString()); |
| MneConfigHelper.setBaseOutputName(m_conf, null, "long-data"); |
| |
| MneConfigHelper.setMemServiceName(m_conf, MneConfigHelper.DEFAULT_INPUT_CONFIG_PREFIX, SERVICE_NAME); |
| MneConfigHelper.setSlotKeyId(m_conf, MneConfigHelper.DEFAULT_INPUT_CONFIG_PREFIX, SLOT_KEY_ID); |
| MneConfigHelper.setDurableTypes(m_conf, |
| MneConfigHelper.DEFAULT_INPUT_CONFIG_PREFIX, new DurableType[]{DurableType.LONG}); |
| MneConfigHelper.setEntityFactoryProxies(m_conf, |
| MneConfigHelper.DEFAULT_INPUT_CONFIG_PREFIX, new Class<?>[]{}); |
| MneConfigHelper.setMemServiceName(m_conf, MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX, SERVICE_NAME); |
| MneConfigHelper.setSlotKeyId(m_conf, MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX, SLOT_KEY_ID); |
| MneConfigHelper.setMemPoolSize(m_conf, |
| MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX, 1024L * 1024 * 1024 * 2); |
| MneConfigHelper.setDurableTypes(m_conf, |
| MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX, new DurableType[]{DurableType.LONG}); |
| MneConfigHelper.setEntityFactoryProxies(m_conf, |
| MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX, new Class<?>[]{}); |
| } |
| |
| @AfterClass |
| public void tearDown() { |
| |
| } |
| |
| @Test(enabled = true) |
| public void testWriteLongData() throws Exception { |
| NullWritable nada = NullWritable.get(); |
| MneDurableOutputSession<Long> sess = |
| new MneDurableOutputSession<Long>(m_tacontext, null, |
| MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX); |
| MneDurableOutputValue<Long> mdvalue = |
| new MneDurableOutputValue<Long>(sess); |
| OutputFormat<NullWritable, MneDurableOutputValue<Long>> outputFormat = |
| new MneOutputFormat<MneDurableOutputValue<Long>>(); |
| RecordWriter<NullWritable, MneDurableOutputValue<Long>> writer = |
| outputFormat.getRecordWriter(null, m_conf, null, null); |
| Long val = null; |
| for (int i = 0; i < m_reccnt; ++i) { |
| val = m_rand.nextLong(); |
| m_sum += val; |
| writer.write(nada, mdvalue.of(val)); |
| } |
| writer.close(null); |
| sess.close(); |
| } |
| |
| @Test(enabled = true, dependsOnMethods = {"testWriteLongData"}) |
| public void testReadLongData() throws Exception { |
| long sum = 0L; |
| long reccnt = 0L; |
| File folder = new File(m_workdir.toString()); |
| File[] listfiles = folder.listFiles(); |
| for (int idx = 0; idx < listfiles.length; ++idx) { |
| if (listfiles[idx].isFile() |
| && listfiles[idx].getName().startsWith(MneConfigHelper.getBaseOutputName(m_conf, null)) |
| && listfiles[idx].getName().endsWith(MneConfigHelper.DEFAULT_FILE_EXTENSION)) { |
| System.out.println(String.format("Verifying : %s", listfiles[idx].getName())); |
| FileSplit split = new FileSplit( |
| new Path(m_workdir, listfiles[idx].getName()), 0, 0L, new String[0]); |
| InputFormat<NullWritable, MneDurableInputValue<Long>> inputFormat = |
| new MneInputFormat<MneDurableInputValue<Long>, Long>(); |
| RecordReader<NullWritable, MneDurableInputValue<Long>> reader = |
| inputFormat.getRecordReader(split, m_conf, null); |
| MneDurableInputValue<Long> mdval = null; |
| NullWritable mdkey = reader.createKey(); |
| while (true) { |
| mdval = reader.createValue(); |
| if (reader.next(mdkey, mdval)) { |
| sum += mdval.getValue(); |
| ++reccnt; |
| } else { |
| break; |
| } |
| } |
| reader.close(); |
| } |
| } |
| AssertJUnit.assertEquals(m_sum, sum); |
| AssertJUnit.assertEquals(m_reccnt, reccnt); |
| System.out.println(String.format("The checksum of long data is %d", sum)); |
| } |
| } |