| /** |
| * 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.tez.mapreduce.examples; |
| |
| import java.io.IOException; |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import com.google.common.collect.Maps; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.conf.Configured; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.IntWritable; |
| import org.apache.hadoop.io.NullWritable; |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.mapred.JobConf; |
| import org.apache.hadoop.mapreduce.InputFormat; |
| import org.apache.hadoop.mapreduce.InputSplit; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.JobContext; |
| import org.apache.hadoop.mapreduce.MRJobConfig; |
| import org.apache.hadoop.mapreduce.Mapper; |
| import org.apache.hadoop.mapreduce.Partitioner; |
| import org.apache.hadoop.mapreduce.RecordReader; |
| import org.apache.hadoop.mapreduce.Reducer; |
| import org.apache.hadoop.mapreduce.TaskAttemptContext; |
| import org.apache.hadoop.mapreduce.TaskAttemptID; |
| import org.apache.hadoop.mapreduce.lib.input.FileInputFormat; |
| import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat; |
| import org.apache.hadoop.mapreduce.security.TokenCache; |
| import org.apache.hadoop.security.Credentials; |
| import org.apache.hadoop.util.ClassUtil; |
| import org.apache.hadoop.util.Tool; |
| import org.apache.hadoop.util.ToolRunner; |
| import org.apache.hadoop.yarn.api.records.LocalResource; |
| import org.apache.hadoop.yarn.api.records.LocalResourceType; |
| import org.apache.hadoop.yarn.api.records.LocalResourceVisibility; |
| import org.apache.hadoop.yarn.exceptions.YarnException; |
| import org.apache.hadoop.yarn.util.ConverterUtils; |
| import org.apache.tez.client.TezClientUtils; |
| import org.apache.tez.client.TezClient; |
| import org.apache.tez.common.TezUtils; |
| import org.apache.tez.dag.api.DAG; |
| import org.apache.tez.dag.api.DataSourceDescriptor; |
| import org.apache.tez.dag.api.Edge; |
| import org.apache.tez.dag.api.ProcessorDescriptor; |
| import org.apache.tez.dag.api.TezConfiguration; |
| import org.apache.tez.dag.api.TezUncheckedException; |
| import org.apache.tez.dag.api.UserPayload; |
| import org.apache.tez.dag.api.Vertex; |
| import org.apache.tez.dag.api.client.DAGClient; |
| import org.apache.tez.dag.api.client.DAGStatus; |
| import org.apache.tez.mapreduce.hadoop.MRHelpers; |
| import org.apache.tez.mapreduce.hadoop.MRInputHelpers; |
| import org.apache.tez.mapreduce.hadoop.MultiStageMRConfigUtil; |
| import org.apache.tez.mapreduce.input.MRInputLegacy; |
| import org.apache.tez.mapreduce.output.MROutputLegacy; |
| import org.apache.tez.mapreduce.processor.map.MapProcessor; |
| import org.apache.tez.mapreduce.processor.reduce.ReduceProcessor; |
| import org.apache.tez.runtime.library.conf.OrderedPartitionedKVEdgeConfig; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| |
| import org.apache.tez.runtime.library.partitioner.HashPartitioner; |
| |
| /** |
| * Dummy class for testing MR framefork. Sleeps for a defined period |
| * of time in mapper and reducer. Generates fake input for map / reduce |
| * jobs. Note that generated number of input pairs is in the order |
| * of <code>numMappers * mapSleepTime / 100</code>, so the job uses |
| * some disk space. |
| */ |
| public class MRRSleepJob extends Configured implements Tool { |
| |
| private static final Log LOG = LogFactory.getLog(MRRSleepJob.class); |
| |
| public static final String MAP_SLEEP_COUNT = "mrr.sleepjob.map.sleep.count"; |
| public static final String REDUCE_SLEEP_COUNT = |
| "mrr.sleepjob.reduce.sleep.count"; |
| public static final String MAP_SLEEP_TIME = "mrr.sleepjob.map.sleep.time"; |
| public static final String REDUCE_SLEEP_TIME = |
| "mrr.sleepjob.reduce.sleep.time"; |
| public static final String IREDUCE_SLEEP_COUNT = |
| "mrr.sleepjob.ireduce.sleep.count"; |
| public static final String IREDUCE_SLEEP_TIME = |
| "mrr.sleepjob.ireduce.sleep.time"; |
| public static final String IREDUCE_STAGES_COUNT = |
| "mrr.sleepjob.ireduces.stages.count"; |
| public static final String IREDUCE_TASKS_COUNT = |
| "mrr.sleepjob.ireduces.tasks.count"; |
| |
| // Flags to inject failures |
| public static final String MAP_THROW_ERROR = "mrr.sleepjob.map.throw.error"; |
| public static final String MAP_FATAL_ERROR = "mrr.sleepjob.map.fatal.error"; |
| public static final String MAP_ERROR_TASK_IDS = |
| "mrr.sleepjob.map.error.task.ids"; |
| |
| public static class MRRSleepJobPartitioner extends |
| Partitioner<IntWritable, IntWritable> { |
| public int getPartition(IntWritable k, IntWritable v, int numPartitions) { |
| return k.get() % numPartitions; |
| } |
| } |
| |
| public static class EmptySplit extends InputSplit implements Writable { |
| public void write(DataOutput out) throws IOException { } |
| public void readFields(DataInput in) throws IOException { } |
| public long getLength() { return 0L; } |
| public String[] getLocations() { return new String[0]; } |
| } |
| |
| public static class SleepInputFormat |
| extends InputFormat<IntWritable,IntWritable> { |
| |
| public List<InputSplit> getSplits(JobContext jobContext) { |
| List<InputSplit> ret = new ArrayList<InputSplit>(); |
| int numSplits = jobContext.getConfiguration(). |
| getInt(MRJobConfig.NUM_MAPS, 1); |
| for (int i = 0; i < numSplits; ++i) { |
| ret.add(new EmptySplit()); |
| } |
| return ret; |
| } |
| |
| public RecordReader<IntWritable,IntWritable> createRecordReader( |
| InputSplit ignored, TaskAttemptContext taskContext) |
| throws IOException { |
| Configuration conf = taskContext.getConfiguration(); |
| |
| final int count = conf.getInt(MAP_SLEEP_COUNT, 1); |
| if (count < 0) { |
| throw new IOException("Invalid map count: " + count); |
| } |
| |
| int totalIReduces = conf.getInt(IREDUCE_STAGES_COUNT, 1); |
| |
| int reduceTasks = totalIReduces == 0? |
| taskContext.getNumReduceTasks() : |
| conf.getInt(IREDUCE_TASKS_COUNT, 1); |
| int sleepCount = totalIReduces == 0? |
| conf.getInt(REDUCE_SLEEP_COUNT,1) : |
| conf.getInt(IREDUCE_SLEEP_COUNT,1); |
| final int emitPerMapTask = sleepCount * reduceTasks; |
| |
| return new RecordReader<IntWritable,IntWritable>() { |
| private int records = 0; |
| private int emitCount = 0; |
| private IntWritable key = null; |
| private IntWritable value = null; |
| |
| public void initialize(InputSplit split, TaskAttemptContext context) { |
| } |
| |
| public boolean nextKeyValue() |
| throws IOException { |
| if (count == 0) { |
| return false; |
| } |
| key = new IntWritable(); |
| key.set(emitCount); |
| int emit = emitPerMapTask / count; |
| if ((emitPerMapTask) % count > records) { |
| ++emit; |
| } |
| emitCount += emit; |
| value = new IntWritable(); |
| value.set(emit); |
| return records++ < count; |
| } |
| public IntWritable getCurrentKey() { return key; } |
| public IntWritable getCurrentValue() { return value; } |
| public void close() throws IOException { } |
| public float getProgress() throws IOException { |
| return count == 0 ? 100 : records / ((float)count); |
| } |
| }; |
| } |
| } |
| |
| public static class SleepMapper |
| extends Mapper<IntWritable, IntWritable, IntWritable, IntWritable> { |
| private long mapSleepDuration = 100; |
| private int mapSleepCount = 1; |
| private int count = 0; |
| private String vertexName; |
| private boolean throwError = false; |
| private boolean throwFatal = false; |
| private boolean finalAttempt = false; |
| |
| protected void setup(Context context) |
| throws IOException, InterruptedException { |
| Configuration conf = context.getConfiguration(); |
| this.mapSleepCount = |
| conf.getInt(MAP_SLEEP_COUNT, mapSleepCount); |
| this.mapSleepDuration = mapSleepCount == 0 ? 0 : |
| conf.getLong(MAP_SLEEP_TIME , 100) / mapSleepCount; |
| vertexName = conf.get( |
| org.apache.tez.mapreduce.hadoop.MRJobConfig.VERTEX_NAME); |
| |
| TaskAttemptID taId = context.getTaskAttemptID(); |
| |
| String[] taskIds = conf.getStrings(MAP_ERROR_TASK_IDS); |
| if (taId.getId()+1 >= context.getMaxMapAttempts()) { |
| finalAttempt = true; |
| } |
| boolean found = false; |
| if (taskIds != null) { |
| if (taskIds.length == 1 && taskIds[0].equals("*")) { |
| found = true; |
| } |
| if (!found) { |
| for (String taskId : taskIds) { |
| if (Integer.valueOf(taskId).intValue() == |
| taId.getTaskID().getId()) { |
| found = true; |
| break; |
| } |
| } |
| } |
| } |
| if (found) { |
| if (!finalAttempt) { |
| throwError = conf.getBoolean(MAP_THROW_ERROR, false); |
| } |
| throwFatal = conf.getBoolean(MAP_FATAL_ERROR, false); |
| } |
| } |
| |
| public void map(IntWritable key, IntWritable value, Context context |
| ) throws IOException, InterruptedException { |
| //it is expected that every map processes mapSleepCount number of records. |
| try { |
| LOG.info("Reading in " + vertexName |
| + " taskid " + context.getTaskAttemptID().getTaskID().getId() |
| + " key " + key.get()); |
| LOG.info("Sleeping in InitialMap" |
| + ", vertexName=" + vertexName |
| + ", taskAttemptId=" + context.getTaskAttemptID() |
| + ", mapSleepDuration=" + mapSleepDuration |
| + ", mapSleepCount=" + mapSleepCount |
| + ", sleepLeft=" |
| + (mapSleepDuration * (mapSleepCount - count))); |
| context.setStatus("Sleeping... (" + |
| (mapSleepDuration * (mapSleepCount - count)) + ") ms left"); |
| if ((mapSleepCount - count) > 0) { |
| Thread.sleep(mapSleepDuration); |
| } |
| if (throwError || throwFatal) { |
| throw new IOException("Throwing a simulated error from map"); |
| } |
| } |
| catch (InterruptedException ex) { |
| throw (IOException)new IOException( |
| "Interrupted while sleeping").initCause(ex); |
| } |
| ++count; |
| // output reduceSleepCount * numReduce number of random values, so that |
| // each reducer will get reduceSleepCount number of keys. |
| int k = key.get(); |
| for (int i = 0; i < value.get(); ++i) { |
| LOG.info("Writing in " + vertexName |
| + " taskid " + context.getTaskAttemptID().getTaskID().getId() |
| + " key " + (k+i) + " value 1"); |
| context.write(new IntWritable(k + i), new IntWritable(1)); |
| } |
| } |
| } |
| |
| public static class ISleepReducer |
| extends Reducer<IntWritable, IntWritable, IntWritable, IntWritable> { |
| private long iReduceSleepDuration = 100; |
| private int iReduceSleepCount = 1; |
| private int count = 0; |
| private String vertexName; |
| |
| protected void setup(Context context) |
| throws IOException, InterruptedException { |
| Configuration conf = context.getConfiguration(); |
| this.iReduceSleepCount = |
| conf.getInt(IREDUCE_SLEEP_COUNT, iReduceSleepCount); |
| this.iReduceSleepDuration = iReduceSleepCount == 0 ? 0 : |
| conf.getLong(IREDUCE_SLEEP_TIME , 100) / iReduceSleepCount; |
| vertexName = conf.get( |
| org.apache.tez.mapreduce.hadoop.MRJobConfig.VERTEX_NAME); |
| } |
| |
| public void reduce(IntWritable key, Iterable<IntWritable> values, |
| Context context) |
| throws IOException, InterruptedException { |
| try { |
| LOG.info("Reading in " + vertexName |
| + " taskid " + context.getTaskAttemptID().getTaskID().getId() |
| + " key " + key.get()); |
| |
| LOG.info("Sleeping in IntermediateReduce" |
| + ", vertexName=" + vertexName |
| + ", taskAttemptId=" + context.getTaskAttemptID() |
| + ", iReduceSleepDuration=" + iReduceSleepDuration |
| + ", iReduceSleepCount=" + iReduceSleepCount |
| + ", sleepLeft=" |
| + (iReduceSleepDuration * (iReduceSleepCount - count))); |
| context.setStatus("Sleeping... (" + |
| (iReduceSleepDuration * (iReduceSleepCount - count)) + ") ms left"); |
| if ((iReduceSleepCount - count) > 0) { |
| Thread.sleep(iReduceSleepDuration); |
| } |
| } |
| catch (InterruptedException ex) { |
| throw (IOException)new IOException( |
| "Interrupted while sleeping").initCause(ex); |
| } |
| ++count; |
| // output reduceSleepCount * numReduce number of random values, so that |
| // each reducer will get reduceSleepCount number of keys. |
| int k = key.get(); |
| for (IntWritable value : values) { |
| for (int i = 0; i < value.get(); ++i) { |
| LOG.info("Writing in " + vertexName |
| + " taskid " + context.getTaskAttemptID().getTaskID().getId() |
| + " key " + (k+i) + " value 1"); |
| context.write(new IntWritable(k + i), new IntWritable(1)); |
| } |
| } |
| } |
| } |
| |
| public static class SleepReducer |
| extends Reducer<IntWritable, IntWritable, NullWritable, NullWritable> { |
| private long reduceSleepDuration = 100; |
| private int reduceSleepCount = 1; |
| private int count = 0; |
| private String vertexName; |
| |
| protected void setup(Context context) |
| throws IOException, InterruptedException { |
| Configuration conf = context.getConfiguration(); |
| this.reduceSleepCount = |
| conf.getInt(REDUCE_SLEEP_COUNT, reduceSleepCount); |
| this.reduceSleepDuration = reduceSleepCount == 0 ? 0 : |
| conf.getLong(REDUCE_SLEEP_TIME , 100) / reduceSleepCount; |
| vertexName = conf.get( |
| org.apache.tez.mapreduce.hadoop.MRJobConfig.VERTEX_NAME); |
| } |
| |
| public void reduce(IntWritable key, Iterable<IntWritable> values, |
| Context context) |
| throws IOException { |
| try { |
| LOG.info("Reading in " + vertexName |
| + " taskid " + context.getTaskAttemptID().getTaskID().getId() |
| + " key " + key.get()); |
| LOG.info("Sleeping in FinalReduce" |
| + ", vertexName=" + vertexName |
| + ", taskAttemptId=" + context.getTaskAttemptID() |
| + ", reduceSleepDuration=" + reduceSleepDuration |
| + ", reduceSleepCount=" + reduceSleepCount |
| + ", sleepLeft=" |
| + (reduceSleepDuration * (reduceSleepCount - count))); |
| context.setStatus("Sleeping... (" + |
| (reduceSleepDuration * (reduceSleepCount - count)) + ") ms left"); |
| if ((reduceSleepCount - count) > 0) { |
| Thread.sleep(reduceSleepDuration); |
| } |
| } |
| catch (InterruptedException ex) { |
| throw (IOException)new IOException( |
| "Interrupted while sleeping").initCause(ex); |
| } |
| count++; |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| int res = ToolRunner.run(new Configuration(), new MRRSleepJob(), args); |
| System.exit(res); |
| } |
| |
| private Credentials credentials = new Credentials(); |
| |
| public DAG createDAG(FileSystem remoteFs, Configuration conf, Path remoteStagingDir, |
| int numMapper, int numReducer, int iReduceStagesCount, |
| int numIReducer, long mapSleepTime, int mapSleepCount, |
| long reduceSleepTime, int reduceSleepCount, |
| long iReduceSleepTime, int iReduceSleepCount, boolean writeSplitsToDFS, |
| boolean generateSplitsInAM) |
| throws IOException, YarnException { |
| |
| |
| Configuration mapStageConf = new JobConf(conf); |
| mapStageConf.setInt(MRJobConfig.NUM_MAPS, numMapper); |
| mapStageConf.setLong(MAP_SLEEP_TIME, mapSleepTime); |
| mapStageConf.setLong(REDUCE_SLEEP_TIME, reduceSleepTime); |
| mapStageConf.setLong(IREDUCE_SLEEP_TIME, iReduceSleepTime); |
| mapStageConf.setInt(MAP_SLEEP_COUNT, mapSleepCount); |
| mapStageConf.setInt(REDUCE_SLEEP_COUNT, reduceSleepCount); |
| mapStageConf.setInt(IREDUCE_SLEEP_COUNT, iReduceSleepCount); |
| mapStageConf.setInt(IREDUCE_STAGES_COUNT, iReduceStagesCount); |
| mapStageConf.setInt(IREDUCE_TASKS_COUNT, numIReducer); |
| mapStageConf.set(MRJobConfig.MAP_CLASS_ATTR, SleepMapper.class.getName()); |
| mapStageConf.set(MRJobConfig.INPUT_FORMAT_CLASS_ATTR, |
| SleepInputFormat.class.getName()); |
| if (numIReducer == 0 && numReducer == 0) { |
| mapStageConf.set(MRJobConfig.OUTPUT_FORMAT_CLASS_ATTR, |
| NullOutputFormat.class.getName()); |
| } |
| |
| MRHelpers.translateMRConfToTez(mapStageConf); |
| |
| Configuration[] intermediateReduceStageConfs = null; |
| if (iReduceStagesCount > 0 |
| && numIReducer > 0) { |
| intermediateReduceStageConfs = new JobConf[iReduceStagesCount]; |
| for (int i = 1; i <= iReduceStagesCount; ++i) { |
| JobConf iReduceStageConf = new JobConf(conf); |
| iReduceStageConf.setLong(MRRSleepJob.REDUCE_SLEEP_TIME, iReduceSleepTime); |
| iReduceStageConf.setInt(MRRSleepJob.REDUCE_SLEEP_COUNT, iReduceSleepCount); |
| iReduceStageConf.setInt(MRJobConfig.NUM_REDUCES, numIReducer); |
| iReduceStageConf |
| .set(MRJobConfig.REDUCE_CLASS_ATTR, ISleepReducer.class.getName()); |
| iReduceStageConf.set(MRJobConfig.MAP_OUTPUT_KEY_CLASS, |
| IntWritable.class.getName()); |
| iReduceStageConf.set(MRJobConfig.MAP_OUTPUT_VALUE_CLASS, |
| IntWritable.class.getName()); |
| iReduceStageConf.set(MRJobConfig.PARTITIONER_CLASS_ATTR, |
| MRRSleepJobPartitioner.class.getName()); |
| |
| |
| MRHelpers.translateMRConfToTez(iReduceStageConf); |
| intermediateReduceStageConfs[i-1] = iReduceStageConf; |
| } |
| } |
| |
| Configuration finalReduceConf = null; |
| if (numReducer > 0) { |
| finalReduceConf = new JobConf(conf); |
| finalReduceConf.setLong(MRRSleepJob.REDUCE_SLEEP_TIME, reduceSleepTime); |
| finalReduceConf.setInt(MRRSleepJob.REDUCE_SLEEP_COUNT, reduceSleepCount); |
| finalReduceConf.setInt(MRJobConfig.NUM_REDUCES, numReducer); |
| finalReduceConf.set(MRJobConfig.REDUCE_CLASS_ATTR, SleepReducer.class.getName()); |
| finalReduceConf.set(MRJobConfig.MAP_OUTPUT_KEY_CLASS, |
| IntWritable.class.getName()); |
| finalReduceConf.set(MRJobConfig.MAP_OUTPUT_VALUE_CLASS, |
| IntWritable.class.getName()); |
| finalReduceConf.set(MRJobConfig.OUTPUT_FORMAT_CLASS_ATTR, |
| NullOutputFormat.class.getName()); |
| |
| MRHelpers.translateMRConfToTez(finalReduceConf); |
| } |
| |
| MRHelpers.configureMRApiUsage(mapStageConf); |
| if (iReduceStagesCount > 0 |
| && numIReducer > 0) { |
| for (int i = 0; i < iReduceStagesCount; ++i) { |
| MRHelpers.configureMRApiUsage(intermediateReduceStageConfs[i]); |
| } |
| } |
| if (numReducer > 0) { |
| MRHelpers.configureMRApiUsage(finalReduceConf); |
| } |
| |
| DataSourceDescriptor dataSource = null; |
| if (!generateSplitsInAM && writeSplitsToDFS) { |
| |
| LOG.info("Writing splits to DFS"); |
| dataSource = MRInputHelpers |
| .configureMRInputWithLegacySplitGeneration(mapStageConf, remoteStagingDir, true); |
| } else { |
| dataSource = MRInputLegacy.createConfigBuilder(mapStageConf, SleepInputFormat.class) |
| .generateSplitsInAM(generateSplitsInAM).build(); |
| } |
| |
| DAG dag = DAG.create("MRRSleepJob"); |
| String jarPath = ClassUtil.findContainingJar(getClass()); |
| if (jarPath == null) { |
| throw new TezUncheckedException("Could not find any jar containing" |
| + " MRRSleepJob.class in the classpath"); |
| } |
| Path remoteJarPath = remoteFs.makeQualified( |
| new Path(remoteStagingDir, "dag_job.jar")); |
| remoteFs.copyFromLocalFile(new Path(jarPath), remoteJarPath); |
| FileStatus jarFileStatus = remoteFs.getFileStatus(remoteJarPath); |
| |
| TokenCache.obtainTokensForNamenodes(this.credentials, new Path[] { remoteJarPath }, |
| mapStageConf); |
| |
| Map<String, LocalResource> commonLocalResources = |
| new HashMap<String, LocalResource>(); |
| LocalResource dagJarLocalRsrc = LocalResource.newInstance( |
| ConverterUtils.getYarnUrlFromPath(remoteJarPath), |
| LocalResourceType.FILE, |
| LocalResourceVisibility.APPLICATION, |
| jarFileStatus.getLen(), |
| jarFileStatus.getModificationTime()); |
| commonLocalResources.put("dag_job.jar", dagJarLocalRsrc); |
| |
| List<Vertex> vertices = new ArrayList<Vertex>(); |
| |
| |
| UserPayload mapUserPayload = TezUtils.createUserPayloadFromConf(mapStageConf); |
| int numTasks = generateSplitsInAM ? -1 : numMapper; |
| |
| Map<String, String> mapEnv = Maps.newHashMap(); |
| MRHelpers.updateEnvBasedOnMRTaskEnv(mapStageConf, mapEnv, true); |
| Map<String, String> reduceEnv = Maps.newHashMap(); |
| MRHelpers.updateEnvBasedOnMRTaskEnv(mapStageConf, reduceEnv, false); |
| |
| Vertex mapVertex = Vertex.create("map", ProcessorDescriptor.create( |
| MapProcessor.class.getName()).setUserPayload(mapUserPayload), numTasks, |
| MRHelpers.getResourceForMRMapper(mapStageConf)); |
| mapVertex.addTaskLocalFiles(commonLocalResources) |
| .addDataSource("MRInput", dataSource) |
| .setTaskLaunchCmdOpts(MRHelpers.getJavaOptsForMRMapper(mapStageConf)).setTaskEnvironment(mapEnv); |
| vertices.add(mapVertex); |
| |
| if (iReduceStagesCount > 0 |
| && numIReducer > 0) { |
| for (int i = 0; i < iReduceStagesCount; ++i) { |
| Configuration iconf = |
| intermediateReduceStageConfs[i]; |
| UserPayload iReduceUserPayload = TezUtils.createUserPayloadFromConf(iconf); |
| Vertex ivertex = Vertex.create("ireduce" + (i + 1), |
| ProcessorDescriptor.create(ReduceProcessor.class.getName()). |
| setUserPayload(iReduceUserPayload), numIReducer, |
| MRHelpers.getResourceForMRReducer(intermediateReduceStageConfs[i])); |
| ivertex.addTaskLocalFiles(commonLocalResources) |
| .setTaskLaunchCmdOpts(MRHelpers.getJavaOptsForMRReducer( |
| intermediateReduceStageConfs[i])).setTaskEnvironment(reduceEnv); |
| vertices.add(ivertex); |
| } |
| } |
| |
| Vertex finalReduceVertex = null; |
| if (numReducer > 0) { |
| UserPayload reducePayload = TezUtils.createUserPayloadFromConf(finalReduceConf); |
| finalReduceVertex = Vertex.create("reduce", ProcessorDescriptor.create( |
| ReduceProcessor.class.getName()).setUserPayload(reducePayload), numReducer, |
| MRHelpers.getResourceForMRReducer(finalReduceConf)); |
| finalReduceVertex.addTaskLocalFiles(commonLocalResources) |
| .addDataSink("MROutput", MROutputLegacy.createConfigBuilder( |
| finalReduceConf, NullOutputFormat.class).build()) |
| .setTaskLaunchCmdOpts(MRHelpers.getJavaOptsForMRReducer(finalReduceConf)) |
| .setTaskEnvironment(reduceEnv); |
| vertices.add(finalReduceVertex); |
| } else { |
| // Map only job |
| mapVertex.addDataSink("MROutput", |
| MROutputLegacy.createConfigBuilder(mapStageConf, NullOutputFormat.class).build()); |
| } |
| |
| |
| Map<String, String> partitionerConf = Maps.newHashMap(); |
| partitionerConf.put(MRJobConfig.PARTITIONER_CLASS_ATTR, MRRSleepJobPartitioner.class.getName()); |
| OrderedPartitionedKVEdgeConfig edgeConf = OrderedPartitionedKVEdgeConfig |
| .newBuilder(IntWritable.class.getName(), IntWritable.class.getName(), |
| HashPartitioner.class.getName(), partitionerConf).configureInput().useLegacyInput() |
| .done().build(); |
| |
| for (int i = 0; i < vertices.size(); ++i) { |
| dag.addVertex(vertices.get(i)); |
| if (i != 0) { |
| dag.addEdge( |
| Edge.create(vertices.get(i - 1), vertices.get(i), edgeConf.createDefaultEdgeProperty())); |
| } |
| } |
| |
| return dag; |
| } |
| |
| @VisibleForTesting |
| public Job createJob(int numMapper, int numReducer, int iReduceStagesCount, |
| int numIReducer, long mapSleepTime, int mapSleepCount, |
| long reduceSleepTime, int reduceSleepCount, |
| long iReduceSleepTime, int iReduceSleepCount) |
| throws IOException { |
| Configuration conf = getConf(); |
| conf.setLong(MAP_SLEEP_TIME, mapSleepTime); |
| conf.setLong(REDUCE_SLEEP_TIME, reduceSleepTime); |
| conf.setLong(IREDUCE_SLEEP_TIME, iReduceSleepTime); |
| conf.setInt(MAP_SLEEP_COUNT, mapSleepCount); |
| conf.setInt(REDUCE_SLEEP_COUNT, reduceSleepCount); |
| conf.setInt(IREDUCE_SLEEP_COUNT, iReduceSleepCount); |
| conf.setInt(MRJobConfig.NUM_MAPS, numMapper); |
| conf.setInt(IREDUCE_STAGES_COUNT, iReduceStagesCount); |
| conf.setInt(IREDUCE_TASKS_COUNT, numIReducer); |
| |
| // Configure intermediate reduces |
| conf.setInt( |
| org.apache.tez.mapreduce.hadoop.MRJobConfig.MRR_INTERMEDIATE_STAGES, |
| iReduceStagesCount); |
| LOG.info("Running MRR with " + iReduceStagesCount + " IR stages"); |
| |
| for (int i = 1; i <= iReduceStagesCount; ++i) { |
| // Set reducer class for intermediate reduce |
| conf.setClass( |
| MultiStageMRConfigUtil.getPropertyNameForIntermediateStage(i, |
| "mapreduce.job.reduce.class"), ISleepReducer.class, Reducer.class); |
| // Set reducer output key class |
| conf.setClass( |
| MultiStageMRConfigUtil.getPropertyNameForIntermediateStage(i, |
| "mapreduce.map.output.key.class"), IntWritable.class, Object.class); |
| // Set reducer output value class |
| conf.setClass( |
| MultiStageMRConfigUtil.getPropertyNameForIntermediateStage(i, |
| "mapreduce.map.output.value.class"), IntWritable.class, Object.class); |
| conf.setInt( |
| MultiStageMRConfigUtil.getPropertyNameForIntermediateStage(i, |
| "mapreduce.job.reduces"), numIReducer); |
| } |
| |
| Job job = Job.getInstance(conf, "sleep"); |
| job.setNumReduceTasks(numReducer); |
| job.setJarByClass(MRRSleepJob.class); |
| job.setNumReduceTasks(numReducer); |
| job.setMapperClass(SleepMapper.class); |
| job.setMapOutputKeyClass(IntWritable.class); |
| job.setMapOutputValueClass(IntWritable.class); |
| job.setReducerClass(SleepReducer.class); |
| job.setOutputFormatClass(NullOutputFormat.class); |
| job.setInputFormatClass(SleepInputFormat.class); |
| job.setPartitionerClass(MRRSleepJobPartitioner.class); |
| job.setSpeculativeExecution(false); |
| job.setJobName("Sleep job"); |
| |
| FileInputFormat.addInputPath(job, new Path("ignored")); |
| return job; |
| } |
| |
| public int run(String[] args) throws Exception { |
| |
| if(args.length < 1) { |
| System.err.println("MRRSleepJob [-m numMapper] [-r numReducer]" + |
| " [-ir numIntermediateReducer]" + |
| " [-irs numIntermediateReducerStages]" + |
| " [-mt mapSleepTime (msec)] [-rt reduceSleepTime (msec)]" + |
| " [-irt intermediateReduceSleepTime]" + |
| " [-recordt recordSleepTime (msec)]" + |
| " [-generateSplitsInAM (false)/true]" + |
| " [-writeSplitsToDfs (false)/true]"); |
| ToolRunner.printGenericCommandUsage(System.err); |
| return 2; |
| } |
| |
| int numMapper = 1, numReducer = 1, numIReducer = 1; |
| long mapSleepTime = 100, reduceSleepTime = 100, recSleepTime = 100, |
| iReduceSleepTime=1; |
| int mapSleepCount = 1, reduceSleepCount = 1, iReduceSleepCount = 1; |
| int iReduceStagesCount = 1; |
| boolean writeSplitsToDfs = false; |
| boolean generateSplitsInAM = false; |
| boolean splitsOptionFound = false; |
| |
| for(int i=0; i < args.length; i++ ) { |
| if(args[i].equals("-m")) { |
| numMapper = Integer.parseInt(args[++i]); |
| } |
| else if(args[i].equals("-r")) { |
| numReducer = Integer.parseInt(args[++i]); |
| } |
| else if(args[i].equals("-ir")) { |
| numIReducer = Integer.parseInt(args[++i]); |
| } |
| else if(args[i].equals("-mt")) { |
| mapSleepTime = Long.parseLong(args[++i]); |
| } |
| else if(args[i].equals("-rt")) { |
| reduceSleepTime = Long.parseLong(args[++i]); |
| } |
| else if(args[i].equals("-irt")) { |
| iReduceSleepTime = Long.parseLong(args[++i]); |
| } |
| else if(args[i].equals("-irs")) { |
| iReduceStagesCount = Integer.parseInt(args[++i]); |
| } |
| else if (args[i].equals("-recordt")) { |
| recSleepTime = Long.parseLong(args[++i]); |
| } |
| else if (args[i].equals("-generateSplitsInAM")) { |
| if (splitsOptionFound) { |
| throw new RuntimeException("Cannot use both -generateSplitsInAm and -writeSplitsToDfs together"); |
| } |
| splitsOptionFound = true; |
| generateSplitsInAM = Boolean.parseBoolean(args[++i]); |
| |
| } |
| else if (args[i].equals("-writeSplitsToDfs")) { |
| if (splitsOptionFound) { |
| throw new RuntimeException("Cannot use both -generateSplitsInAm and -writeSplitsToDfs together"); |
| } |
| splitsOptionFound = true; |
| writeSplitsToDfs = Boolean.parseBoolean(args[++i]); |
| } |
| } |
| |
| if (numIReducer > 0 && numReducer <= 0) { |
| throw new RuntimeException("Cannot have intermediate reduces without" |
| + " a final reduce"); |
| } |
| |
| // sleep for *SleepTime duration in Task by recSleepTime per record |
| mapSleepCount = (int)Math.ceil(mapSleepTime / ((double)recSleepTime)); |
| reduceSleepCount = (int)Math.ceil(reduceSleepTime / ((double)recSleepTime)); |
| iReduceSleepCount = (int)Math.ceil(iReduceSleepTime / ((double)recSleepTime)); |
| |
| TezConfiguration conf = new TezConfiguration(getConf()); |
| FileSystem remoteFs = FileSystem.get(conf); |
| |
| conf.set(TezConfiguration.TEZ_AM_STAGING_DIR, |
| conf.get( |
| TezConfiguration.TEZ_AM_STAGING_DIR, |
| TezConfiguration.TEZ_AM_STAGING_DIR_DEFAULT)); |
| |
| Path remoteStagingDir = |
| remoteFs.makeQualified(new Path(conf.get( |
| TezConfiguration.TEZ_AM_STAGING_DIR, |
| TezConfiguration.TEZ_AM_STAGING_DIR_DEFAULT), |
| Long.toString(System.currentTimeMillis()))); |
| TezClientUtils.ensureStagingDirExists(conf, remoteStagingDir); |
| |
| DAG dag = createDAG(remoteFs, conf, remoteStagingDir, |
| numMapper, numReducer, iReduceStagesCount, numIReducer, |
| mapSleepTime, mapSleepCount, reduceSleepTime, reduceSleepCount, |
| iReduceSleepTime, iReduceSleepCount, writeSplitsToDfs, generateSplitsInAM); |
| |
| TezClient tezSession = TezClient.create("MRRSleep", conf, false, null, credentials); |
| tezSession.start(); |
| DAGClient dagClient = tezSession.submitDAG(dag); |
| dagClient.waitForCompletion(); |
| tezSession.stop(); |
| |
| return dagClient.getDAGStatus(null).getState().equals(DAGStatus.State.SUCCEEDED) ? 0 : 1; |
| } |
| |
| } |
