Examples with OutputCommitter org.apache.hadoop.mapreduce.OutputCommitter used on opensource projects

Example 16 with OutputCommitter

use of org.apache.hadoop.mapreduce.OutputCommitter in project hadoop by apache.

the class TestGridMixClasses method testLoadMapper.

/*
   * test LoadMapper loadMapper should write to writer record for each reduce
   */
@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());
}

Example 17 with OutputCommitter

use of org.apache.hadoop.mapreduce.OutputCommitter in project hadoop by apache.

the class TestGridMixClasses method testLoadJobLoadReducer.

/*
   * test LoadReducer
   */
@Test(timeout = 3000)
public void testLoadJobLoadReducer() throws Exception {
    LoadJob.LoadReducer test = new LoadJob.LoadReducer();
    Configuration conf = new Configuration();
    conf.setInt(JobContext.NUM_REDUCES, 2);
    CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
    conf.setBoolean(FileOutputFormat.COMPRESS, true);
    CompressionEmulationUtil.setCompressionEmulationEnabled(conf, true);
    conf.setBoolean(MRJobConfig.MAP_OUTPUT_COMPRESS, true);
    TaskAttemptID taskid = new TaskAttemptID();
    RawKeyValueIterator input = new FakeRawKeyValueIterator();
    Counter counter = new GenericCounter();
    Counter inputValueCounter = new GenericCounter();
    LoadRecordWriter output = new LoadRecordWriter();
    OutputCommitter committer = new CustomOutputCommitter();
    StatusReporter reporter = new DummyReporter();
    RawComparator<GridmixKey> comparator = new FakeRawComparator();
    ReduceContext<GridmixKey, GridmixRecord, NullWritable, GridmixRecord> reduceContext = new ReduceContextImpl<GridmixKey, GridmixRecord, NullWritable, GridmixRecord>(conf, taskid, input, counter, inputValueCounter, output, committer, reporter, comparator, GridmixKey.class, GridmixRecord.class);
    // read for previous data
    reduceContext.nextKeyValue();
    org.apache.hadoop.mapreduce.Reducer<GridmixKey, GridmixRecord, NullWritable, GridmixRecord>.Context<GridmixKey, GridmixRecord, NullWritable, GridmixRecord> context = new WrappedReducer<GridmixKey, GridmixRecord, NullWritable, GridmixRecord>().getReducerContext(reduceContext);
    // test.setup(context);
    test.run(context);
    // have been readed 9 records (-1 for previous)
    assertEquals(9, counter.getValue());
    assertEquals(10, inputValueCounter.getValue());
    assertEquals(1, output.getData().size());
    GridmixRecord record = output.getData().values().iterator().next();
    assertEquals(1593, record.getSize());
}

Example 18 with OutputCommitter

use of org.apache.hadoop.mapreduce.OutputCommitter in project hive by apache.

the class TestHCatOutputFormat method publishTest.

public void publishTest(Job job) throws Exception {
    HCatOutputFormat hcof = new HCatOutputFormat();
    TaskAttemptContext tac = ShimLoader.getHadoopShims().getHCatShim().createTaskAttemptContext(job.getConfiguration(), ShimLoader.getHadoopShims().getHCatShim().createTaskAttemptID());
    OutputCommitter committer = hcof.getOutputCommitter(tac);
    committer.setupJob(job);
    committer.setupTask(tac);
    committer.commitTask(tac);
    committer.commitJob(job);
    Partition part = client.getPartition(dbName, tblName, Arrays.asList("p1"));
    assertNotNull(part);
    StorerInfo storer = InternalUtil.extractStorerInfo(part.getSd(), part.getParameters());
    assertEquals(storer.getProperties().get("hcat.testarg"), "testArgValue");
    assertTrue(part.getSd().getLocation().indexOf("p1") != -1);
}

Example 19 with OutputCommitter

use of org.apache.hadoop.mapreduce.OutputCommitter in project ignite by apache.

the class HadoopV2SetupTask method run0.

/** {@inheritDoc} */
@SuppressWarnings("ConstantConditions")
@Override
protected void run0(HadoopV2TaskContext taskCtx) throws IgniteCheckedException {
    try {
        JobContextImpl jobCtx = taskCtx.jobContext();
        OutputFormat outputFormat = getOutputFormat(jobCtx);
        outputFormat.checkOutputSpecs(jobCtx);
        OutputCommitter committer = outputFormat.getOutputCommitter(hadoopContext());
        if (committer != null)
            committer.setupJob(jobCtx);
    } catch (ClassNotFoundException | IOException e) {
        throw new IgniteCheckedException(e);
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new IgniteInterruptedCheckedException(e);
    }
}

Example 20 with OutputCommitter

use of org.apache.hadoop.mapreduce.OutputCommitter in project ignite by apache.

the class HadoopV2Task method prepareWriter.

/**
     * Put write into Hadoop context and return associated output format instance.
     *
     * @param jobCtx Job context.
     * @return Output format.
     * @throws IgniteCheckedException In case of Grid exception.
     * @throws InterruptedException In case of interrupt.
     */
protected OutputFormat prepareWriter(JobContext jobCtx) throws IgniteCheckedException, InterruptedException {
    try {
        OutputFormat outputFormat = getOutputFormat(jobCtx);
        assert outputFormat != null;
        OutputCommitter outCommitter = outputFormat.getOutputCommitter(hadoopCtx);
        if (outCommitter != null)
            outCommitter.setupTask(hadoopCtx);
        RecordWriter writer = outputFormat.getRecordWriter(hadoopCtx);
        hadoopCtx.writer(writer);
        return outputFormat;
    } catch (IOException | ClassNotFoundException e) {
        throw new IgniteCheckedException(e);
    }
}