Package org.apache.hadoop.mapreduce.lib.output

Examples of org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter

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  public org.apache.hadoop.mapreduce.RecordWriter<WritableComparable<?>, BytesRefArrayWritable> getRecordWriter(
    TaskAttemptContext task) throws IOException, InterruptedException {

    //FileOutputFormat.getWorkOutputPath takes TaskInputOutputContext instead of
    //TaskAttemptContext, so can't use that here
    FileOutputCommitter committer = (FileOutputCommitter) getOutputCommitter(task);
    Path outputPath = committer.getWorkPath();

    FileSystem fs = outputPath.getFileSystem(task.getConfiguration());

    if (!fs.exists(outputPath)) {
      fs.mkdirs(outputPath);
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    String outputPath = context.getConfiguration().get("mapred.output.dir");
    //we need to do this to get the task path and set it for mapred implementation
    //since it can't be done automatically because of mapreduce->mapred abstraction
    if (outputPath != null)
      context.getConfiguration().set("mapred.work.output.dir",
        new FileOutputCommitter(new Path(outputPath), context).getWorkPath().toString());
  }
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      createRecordWriter(final TaskAttemptContext context)
          throws IOException, InterruptedException {

    // Get the path of the temporary output file
    final Path outputPath = FileOutputFormat.getOutputPath(context);
    final Path outputdir = new FileOutputCommitter(outputPath, context).getWorkPath();
    final Configuration conf = context.getConfiguration();
    final FileSystem fs = outputdir.getFileSystem(conf);
    // These configs. are from hbase-*.xml
    final long maxsize = conf.getLong(HConstants.HREGION_MAX_FILESIZE,
        HConstants.DEFAULT_MAX_FILE_SIZE);
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  public void checkOutputSpecs(JobContext context)
      throws IOException, InterruptedException {}

  public OutputCommitter getOutputCommitter(TaskAttemptContext context)
      throws IOException, InterruptedException {
    return new FileOutputCommitter(FileOutputFormat.getOutputPath(context),
                                   context);
  }
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  public OutputCommitter getOutputCommitter(TaskAttemptContext context)
      throws IOException {
    if (committer == null) {
      Path output = getOutputPath(context);
      committer = new FileOutputCommitter(output, context);
    }
    return committer;
  }
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        }

        @Override
        public Path getDefaultWorkFile(TaskAttemptContext context,
                String extension) throws IOException {
            FileOutputCommitter committer =
                    (FileOutputCommitter) super.getOutputCommitter(context);
            return new Path(committer.getWorkPath(), getUniqueFile(context,
                    "part", extension));
        }
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        }

        @Override
        public Path getDefaultWorkFile(TaskAttemptContext context,
                String extension) throws IOException {
            FileOutputCommitter committer =
                    (FileOutputCommitter) super.getOutputCommitter(context);
            return new Path(committer.getWorkPath(), getUniqueFile(context,
                    "part", extension));
        }
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  public RecordWriter<ImmutableBytesWritable, KeyValue> getRecordWriter(final TaskAttemptContext context)
  throws IOException, InterruptedException {
    // Get the path of the temporary output file
    final Path outputPath = FileOutputFormat.getOutputPath(context);
    final Path outputdir = new FileOutputCommitter(outputPath, context).getWorkPath();
    final Configuration conf = context.getConfiguration();
    final FileSystem fs = outputdir.getFileSystem(conf);
    // These configs. are from hbase-*.xml
    final long maxsize = conf.getLong(HConstants.HREGION_MAX_FILESIZE,
        HConstants.DEFAULT_MAX_FILE_SIZE);
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  public void checkOutputSpecs(JobContext context)
      throws IOException, InterruptedException {}

  public OutputCommitter getOutputCommitter(TaskAttemptContext context)
      throws IOException, InterruptedException {
    return new FileOutputCommitter(FileOutputFormat.getOutputPath(context),
                                   context);
  }
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  public OutputCommitter getOutputCommitter(TaskAttemptContext context)
      throws IOException {
    if (committer == null) {
      Path output = getOutputPath(context);
      committer = new FileOutputCommitter(output, context);
    }
    return committer;
  }
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