Java CustomOutputCommitter类代码示例

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本文整理汇总了Java中org.apache.hadoop.CustomOutputCommitter类的典型用法代码示例。如果您正苦于以下问题：Java CustomOutputCommitter类的具体用法？Java CustomOutputCommitter怎么用？Java CustomOutputCommitter使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

CustomOutputCommitter类属于org.apache.hadoop包，在下文中一共展示了CustomOutputCommitter类的7个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Java代码示例。

示例1: testLoadMapper

import org.apache.hadoop.CustomOutputCommitter; //导入依赖的package包/类
@SuppressWarnings({"rawtypes", "unchecked"})
@Test (timeout=10000)
public void testLoadMapper() throws Exception {

  Configuration conf = new Configuration();
  conf.setInt(JobContext.NUM_REDUCES, 2);

  CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
  conf.setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);

  TaskAttemptID taskId = new TaskAttemptID();
  RecordReader<NullWritable, GridmixRecord> reader = new FakeRecordReader();

  LoadRecordGkGrWriter writer = new LoadRecordGkGrWriter();

  OutputCommitter committer = new CustomOutputCommitter();
  StatusReporter reporter = new TaskAttemptContextImpl.DummyReporter();
  LoadSplit split = getLoadSplit();

  MapContext<NullWritable, GridmixRecord, GridmixKey, GridmixRecord> mapContext = new MapContextImpl<NullWritable, GridmixRecord, GridmixKey, GridmixRecord>(
          conf, taskId, reader, writer, committer, reporter, split);
  // context
  Context ctx = new WrappedMapper<NullWritable, GridmixRecord, GridmixKey, GridmixRecord>()
          .getMapContext(mapContext);

  reader.initialize(split, ctx);
  ctx.getConfiguration().setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);
  CompressionEmulationUtil.setCompressionEmulationEnabled(
          ctx.getConfiguration(), true);

  LoadJob.LoadMapper mapper = new LoadJob.LoadMapper();
  // setup, map, clean
  mapper.run(ctx);

  Map<GridmixKey, GridmixRecord> data = writer.getData();
  // check result
  assertEquals(2, data.size());

}

开发者ID:yncxcw，项目名称:big-c，代码行数:40，代码来源:TestGridMixClasses.java

示例2: testJobSucceed

import org.apache.hadoop.CustomOutputCommitter; //导入依赖的package包/类
@Test
public void testJobSucceed() throws IOException, InterruptedException,
    ClassNotFoundException { 

  LOG.info("\n\n\nStarting testJobSucceed().");

  if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) {
    LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR
             + " not found. Not running test.");
    return;
  }

  JobConf conf = new JobConf(mrCluster.getConfig());
  
  Path in = new Path(mrCluster.getTestWorkDir().getAbsolutePath(),
    "in");
  Path out = new Path(mrCluster.getTestWorkDir().getAbsolutePath(),
    "out"); 
  runJobSucceed(conf, in, out);
  
  FileSystem fs = FileSystem.get(conf);
  Assert.assertTrue(fs.exists(new Path(out, CustomOutputCommitter.JOB_SETUP_FILE_NAME)));
  Assert.assertFalse(fs.exists(new Path(out, CustomOutputCommitter.JOB_ABORT_FILE_NAME)));
  Assert.assertTrue(fs.exists(new Path(out, CustomOutputCommitter.JOB_COMMIT_FILE_NAME)));
  Assert.assertTrue(fs.exists(new Path(out, CustomOutputCommitter.TASK_SETUP_FILE_NAME)));
  Assert.assertFalse(fs.exists(new Path(out, CustomOutputCommitter.TASK_ABORT_FILE_NAME)));
  Assert.assertTrue(fs.exists(new Path(out, CustomOutputCommitter.TASK_COMMIT_FILE_NAME)));
}

开发者ID:naver，项目名称:hadoop，代码行数:29，代码来源:TestMROldApiJobs.java

示例3: testJobFail

import org.apache.hadoop.CustomOutputCommitter; //导入依赖的package包/类
@Test
public void testJobFail() throws IOException, InterruptedException,
    ClassNotFoundException { 

  LOG.info("\n\n\nStarting testJobFail().");

  if (!(new File(MiniMRYarnCluster.APPJAR)).exists()) {
    LOG.info("MRAppJar " + MiniMRYarnCluster.APPJAR
             + " not found. Not running test.");
    return;
  }

  JobConf conf = new JobConf(mrCluster.getConfig());
  
  Path in = new Path(mrCluster.getTestWorkDir().getAbsolutePath(),
    "fail-in");
  Path out = new Path(mrCluster.getTestWorkDir().getAbsolutePath(),
    "fail-out"); 
  runJobFail(conf, in, out);
  
  FileSystem fs = FileSystem.get(conf);
  Assert.assertTrue(fs.exists(new Path(out, CustomOutputCommitter.JOB_SETUP_FILE_NAME)));
  Assert.assertTrue(fs.exists(new Path(out, CustomOutputCommitter.JOB_ABORT_FILE_NAME)));
  Assert.assertFalse(fs.exists(new Path(out, CustomOutputCommitter.JOB_COMMIT_FILE_NAME)));
  Assert.assertTrue(fs.exists(new Path(out, CustomOutputCommitter.TASK_SETUP_FILE_NAME)));
  Assert.assertTrue(fs.exists(new Path(out, CustomOutputCommitter.TASK_ABORT_FILE_NAME)));
  Assert.assertFalse(fs.exists(new Path(out, CustomOutputCommitter.TASK_COMMIT_FILE_NAME)));
}

开发者ID:naver，项目名称:hadoop，代码行数:29，代码来源:TestMROldApiJobs.java

示例4: runJob

import org.apache.hadoop.CustomOutputCommitter; //导入依赖的package包/类
static boolean runJob(JobConf conf, Path inDir, Path outDir, int numMaps, 
                         int numReds) throws IOException, InterruptedException {

  FileSystem fs = FileSystem.get(conf);
  if (fs.exists(outDir)) {
    fs.delete(outDir, true);
  }
  if (!fs.exists(inDir)) {
    fs.mkdirs(inDir);
  }
  String input = "The quick brown fox\n" + "has many silly\n"
      + "red fox sox\n";
  for (int i = 0; i < numMaps; ++i) {
    DataOutputStream file = fs.create(new Path(inDir, "part-" + i));
    file.writeBytes(input);
    file.close();
  }

  DistributedCache.addFileToClassPath(TestMRJobs.APP_JAR, conf, fs);
  conf.setOutputCommitter(CustomOutputCommitter.class);
  conf.setInputFormat(TextInputFormat.class);
  conf.setOutputKeyClass(LongWritable.class);
  conf.setOutputValueClass(Text.class);

  FileInputFormat.setInputPaths(conf, inDir);
  FileOutputFormat.setOutputPath(conf, outDir);
  conf.setNumMapTasks(numMaps);
  conf.setNumReduceTasks(numReds);

  JobClient jobClient = new JobClient(conf);
  
  RunningJob job = jobClient.submitJob(conf);
  return jobClient.monitorAndPrintJob(conf, job);
}

开发者ID:naver，项目名称:hadoop，代码行数:35，代码来源:TestMROldApiJobs.java

示例5: testCombinerShouldUpdateTheReporter

import org.apache.hadoop.CustomOutputCommitter; //导入依赖的package包/类
@Test
public void testCombinerShouldUpdateTheReporter() throws Exception {
  JobConf conf = new JobConf(mrCluster.getConfig());
  int numMaps = 5;
  int numReds = 2;
  Path in = new Path(mrCluster.getTestWorkDir().getAbsolutePath(),
      "testCombinerShouldUpdateTheReporter-in");
  Path out = new Path(mrCluster.getTestWorkDir().getAbsolutePath(),
      "testCombinerShouldUpdateTheReporter-out");
  createInputOutPutFolder(in, out, numMaps);
  conf.setJobName("test-job-with-combiner");
  conf.setMapperClass(IdentityMapper.class);
  conf.setCombinerClass(MyCombinerToCheckReporter.class);
  //conf.setJarByClass(MyCombinerToCheckReporter.class);
  conf.setReducerClass(IdentityReducer.class);
  DistributedCache.addFileToClassPath(TestMRJobs.APP_JAR, conf);
  conf.setOutputCommitter(CustomOutputCommitter.class);
  conf.setInputFormat(TextInputFormat.class);
  conf.setOutputKeyClass(LongWritable.class);
  conf.setOutputValueClass(Text.class);

  FileInputFormat.setInputPaths(conf, in);
  FileOutputFormat.setOutputPath(conf, out);
  conf.setNumMapTasks(numMaps);
  conf.setNumReduceTasks(numReds);
  
  runJob(conf);
}

开发者ID:naver，项目名称:hadoop，代码行数:29，代码来源:TestMRAppWithCombiner.java

示例6: testSleepMapper

import org.apache.hadoop.CustomOutputCommitter; //导入依赖的package包/类
@SuppressWarnings({"unchecked", "rawtypes"})
@Test (timeout=30000)
public void testSleepMapper() throws Exception {
  SleepJob.SleepMapper test = new SleepJob.SleepMapper();

  Configuration conf = new Configuration();
  conf.setInt(JobContext.NUM_REDUCES, 2);

  CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
  conf.setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);
  TaskAttemptID taskId = new TaskAttemptID();
  FakeRecordLLReader reader = new FakeRecordLLReader();
  LoadRecordGkNullWriter writer = new LoadRecordGkNullWriter();
  OutputCommitter committer = new CustomOutputCommitter();
  StatusReporter reporter = new TaskAttemptContextImpl.DummyReporter();
  SleepSplit split = getSleepSplit();
  MapContext<LongWritable, LongWritable, GridmixKey, NullWritable> mapcontext = new MapContextImpl<LongWritable, LongWritable, GridmixKey, NullWritable>(
          conf, taskId, reader, writer, committer, reporter, split);
  Context context = new WrappedMapper<LongWritable, LongWritable, GridmixKey, NullWritable>()
          .getMapContext(mapcontext);

  long start = System.currentTimeMillis();
  LOG.info("start:" + start);
  LongWritable key = new LongWritable(start + 2000);
  LongWritable value = new LongWritable(start + 2000);
  // should slip 2 sec
  test.map(key, value, context);
  LOG.info("finish:" + System.currentTimeMillis());
  assertTrue(System.currentTimeMillis() >= (start + 2000));

  test.cleanup(context);
  assertEquals(1, writer.getData().size());
}

开发者ID:naver，项目名称:hadoop，代码行数:34，代码来源:TestGridMixClasses.java

示例7: testSleepMapper

import org.apache.hadoop.CustomOutputCommitter; //导入依赖的package包/类
@SuppressWarnings({"unchecked", "rawtypes"})
@Test (timeout=10000)
public void testSleepMapper() throws Exception {
  SleepJob.SleepMapper test = new SleepJob.SleepMapper();

  Configuration conf = new Configuration();
  conf.setInt(JobContext.NUM_REDUCES, 2);

  CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
  conf.setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);
  TaskAttemptID taskId = new TaskAttemptID();
  FakeRecordLLReader reader = new FakeRecordLLReader();
  LoadRecordGkNullWriter writer = new LoadRecordGkNullWriter();
  OutputCommitter committer = new CustomOutputCommitter();
  StatusReporter reporter = new TaskAttemptContextImpl.DummyReporter();
  SleepSplit split = getSleepSplit();
  MapContext<LongWritable, LongWritable, GridmixKey, NullWritable> mapcontext = new MapContextImpl<LongWritable, LongWritable, GridmixKey, NullWritable>(
          conf, taskId, reader, writer, committer, reporter, split);
  Context context = new WrappedMapper<LongWritable, LongWritable, GridmixKey, NullWritable>()
          .getMapContext(mapcontext);

  long start = System.currentTimeMillis();
  LOG.info("start:" + start);
  LongWritable key = new LongWritable(start + 2000);
  LongWritable value = new LongWritable(start + 2000);
  // should slip 2 sec
  test.map(key, value, context);
  LOG.info("finish:" + System.currentTimeMillis());
  assertTrue(System.currentTimeMillis() >= (start + 2000));

  test.cleanup(context);
  assertEquals(1, writer.getData().size());
}

开发者ID:ict-carch，项目名称:hadoop-plus，代码行数:34，代码来源:TestGridMixClasses.java

注：本文中的org.apache.hadoop.CustomOutputCommitter类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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Java CustomOutputCommitter类代码示例

示例1: testLoadMapper

示例2: testJobSucceed

示例3: testJobFail

示例4: runJob

示例5: testCombinerShouldUpdateTheReporter

示例6: testSleepMapper

示例7: testSleepMapper

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