Java Code Examples for org.apache.hadoop.mapreduce.RecordWriter#close()

The following examples show how to use org.apache.hadoop.mapreduce.RecordWriter#close() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: SafeFileOutputCommitterTest.java From datawave with Apache License 2.0

6 votes

private void writeOutput(RecordWriter theRecordWriter, TaskAttemptContext context) throws IOException, InterruptedException {
    NullWritable nullWritable = NullWritable.get();
    
    try {
        theRecordWriter.write(key1, val1);
        theRecordWriter.write(null, nullWritable);
        theRecordWriter.write(null, val1);
        theRecordWriter.write(nullWritable, val2);
        theRecordWriter.write(key2, nullWritable);
        theRecordWriter.write(key1, null);
        theRecordWriter.write(null, null);
        theRecordWriter.write(key2, val2);
    } finally {
        theRecordWriter.close(context);
    }
}

Example 2

Source File: MneMapreduceBufferDataTest.java From mnemonic with Apache License 2.0

6 votes

@Test(enabled = true)
public void testWriteBufferData() throws Exception {
  NullWritable nada = NullWritable.get();
  MneDurableOutputSession<DurableBuffer<?>> sess =
      new MneDurableOutputSession<DurableBuffer<?>>(m_tacontext, null,
          MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX);
  MneDurableOutputValue<DurableBuffer<?>> mdvalue =
      new MneDurableOutputValue<DurableBuffer<?>>(sess);
  OutputFormat<NullWritable, MneDurableOutputValue<DurableBuffer<?>>> outputFormat =
      new MneOutputFormat<MneDurableOutputValue<DurableBuffer<?>>>();
  RecordWriter<NullWritable, MneDurableOutputValue<DurableBuffer<?>>> writer =
      outputFormat.getRecordWriter(m_tacontext);
  DurableBuffer<?> dbuf = null;
  Checksum cs = new CRC32();
  cs.reset();
  for (int i = 0; i < m_reccnt; ++i) {
    dbuf = genupdDurableBuffer(sess, cs);
    Assert.assertNotNull(dbuf);
    writer.write(nada, mdvalue.of(dbuf));
  }
  m_checksum = cs.getValue();
  writer.close(m_tacontext);
  sess.close();
}

Example 3

Source File: TestFileOutputCommitter.java From big-c with Apache License 2.0

6 votes

private void writeOutput(RecordWriter theRecordWriter,
    TaskAttemptContext context) throws IOException, InterruptedException {
  NullWritable nullWritable = NullWritable.get();

  try {
    theRecordWriter.write(key1, val1);
    theRecordWriter.write(null, nullWritable);
    theRecordWriter.write(null, val1);
    theRecordWriter.write(nullWritable, val2);
    theRecordWriter.write(key2, nullWritable);
    theRecordWriter.write(key1, null);
    theRecordWriter.write(null, null);
    theRecordWriter.write(key2, val2);
  } finally {
    theRecordWriter.close(context);
  }
}

Example 4

Source File: MneMapreducePersonDataTest.java From mnemonic with Apache License 2.0

6 votes

@Test(enabled = true)
public void testWritePersonData() throws Exception {
  NullWritable nada = NullWritable.get();
  MneDurableOutputSession<Person<Long>> sess =
      new MneDurableOutputSession<Person<Long>>(m_tacontext, null,
          MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX);
  MneDurableOutputValue<Person<Long>> mdvalue =
      new MneDurableOutputValue<Person<Long>>(sess);
  OutputFormat<NullWritable, MneDurableOutputValue<Person<Long>>> outputFormat =
      new MneOutputFormat<MneDurableOutputValue<Person<Long>>>();
  RecordWriter<NullWritable, MneDurableOutputValue<Person<Long>>> writer =
      outputFormat.getRecordWriter(m_tacontext);
  Person<Long> person = null;
  for (int i = 0; i < m_reccnt; ++i) {
    person = sess.newDurableObjectRecord();
    person.setAge((short) m_rand.nextInt(50));
    person.setName(String.format("Name: [%s]", Utils.genRandomString()), true);
    m_sumage += person.getAge();
    writer.write(nada, mdvalue.of(person));
  }
  writer.close(m_tacontext);
  sess.close();
}

Example 5

Source File: MneMapreduceLongDataTest.java From mnemonic with Apache License 2.0

6 votes

@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(m_tacontext);
  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(m_tacontext);
  sess.close();
}

Example 6

Source File: MneMapreduceChunkDataTest.java From mnemonic with Apache License 2.0

6 votes

@Test(enabled = true)
public void testWriteChunkData() throws Exception {
  NullWritable nada = NullWritable.get();
  MneDurableOutputSession<DurableChunk<?>> sess =
      new MneDurableOutputSession<DurableChunk<?>>(m_tacontext, null,
          MneConfigHelper.DEFAULT_OUTPUT_CONFIG_PREFIX);
  MneDurableOutputValue<DurableChunk<?>> mdvalue =
      new MneDurableOutputValue<DurableChunk<?>>(sess);
  OutputFormat<NullWritable, MneDurableOutputValue<DurableChunk<?>>> outputFormat =
      new MneOutputFormat<MneDurableOutputValue<DurableChunk<?>>>();
  RecordWriter<NullWritable, MneDurableOutputValue<DurableChunk<?>>> writer =
      outputFormat.getRecordWriter(m_tacontext);
  DurableChunk<?> dchunk = null;
  Checksum cs = new CRC32();
  cs.reset();
  for (int i = 0; i < m_reccnt; ++i) {
    dchunk = genupdDurableChunk(sess, cs);
    Assert.assertNotNull(dchunk);
    writer.write(nada, mdvalue.of(dchunk));
  }
  m_checksum = cs.getValue();
  writer.close(m_tacontext);
  sess.close();
}

Example 7

Source File: TestMRCJCFileOutputCommitter.java From hadoop with Apache License 2.0

6 votes

@SuppressWarnings("unchecked")
private void writeOutput(RecordWriter theRecordWriter,
    TaskAttemptContext context) throws IOException, InterruptedException {
  NullWritable nullWritable = NullWritable.get();

  try {
    theRecordWriter.write(key1, val1);
    theRecordWriter.write(null, nullWritable);
    theRecordWriter.write(null, val1);
    theRecordWriter.write(nullWritable, val2);
    theRecordWriter.write(key2, nullWritable);
    theRecordWriter.write(key1, null);
    theRecordWriter.write(null, null);
    theRecordWriter.write(key2, val2);
  } finally {
    theRecordWriter.close(context);
  }
}

Example 8

Source File: Chain.java From hadoop with Apache License 2.0

5 votes

@SuppressWarnings("unchecked")
void runMapper(TaskInputOutputContext context, int index) throws IOException,
    InterruptedException {
  Mapper mapper = mappers.get(index);
  RecordReader rr = new ChainRecordReader(context);
  RecordWriter rw = new ChainRecordWriter(context);
  Mapper.Context mapperContext = createMapContext(rr, rw, context,
      getConf(index));
  mapper.run(mapperContext);
  rr.close();
  rw.close(context);
}

Example 9

Source File: Chain.java From hadoop with Apache License 2.0

5 votes

@SuppressWarnings("unchecked")
<KEYIN, VALUEIN, KEYOUT, VALUEOUT> void runReducer(
    TaskInputOutputContext<KEYIN, VALUEIN, KEYOUT, VALUEOUT> context)
    throws IOException, InterruptedException {
  RecordWriter<KEYOUT, VALUEOUT> rw = new ChainRecordWriter<KEYOUT, VALUEOUT>(
      context);
  Reducer.Context reducerContext = createReduceContext(rw,
      (ReduceContext) context, rConf);
  reducer.run(reducerContext);
  rw.close(context);
}

Example 10

Source File: TestFileOutputCommitter.java From hadoop with Apache License 2.0

5 votes

private void writeMapFileOutput(RecordWriter theRecordWriter,
    TaskAttemptContext context) throws IOException, InterruptedException {
  try {
    int key = 0;
    for (int i = 0 ; i < 10; ++i) {
      key = i;
      Text val = (i%2 == 1) ? val1 : val2;
      theRecordWriter.write(new LongWritable(key),
          val);        
    }
  } finally {
    theRecordWriter.close(context);
  }
}

Example 11

Source File: TestRecovery.java From big-c with Apache License 2.0

5 votes

private void writeBadOutput(TaskAttempt attempt, Configuration conf)
  throws Exception {
  TaskAttemptContext tContext = new TaskAttemptContextImpl(conf, 
      TypeConverter.fromYarn(attempt.getID()));
 
  TextOutputFormat<?, ?> theOutputFormat = new TextOutputFormat();
  RecordWriter theRecordWriter = theOutputFormat
      .getRecordWriter(tContext);
  
  NullWritable nullWritable = NullWritable.get();
  try {
    theRecordWriter.write(key2, val2);
    theRecordWriter.write(null, nullWritable);
    theRecordWriter.write(null, val2);
    theRecordWriter.write(nullWritable, val1);
    theRecordWriter.write(key1, nullWritable);
    theRecordWriter.write(key2, null);
    theRecordWriter.write(null, null);
    theRecordWriter.write(key1, val1);
  } finally {
    theRecordWriter.close(tContext);
  }
  
  OutputFormat outputFormat = ReflectionUtils.newInstance(
      tContext.getOutputFormatClass(), conf);
  OutputCommitter committer = outputFormat.getOutputCommitter(tContext);
  committer.commitTask(tContext);
}

Example 12

Source File: TestRecovery.java From big-c with Apache License 2.0

5 votes

private void writeOutput(TaskAttempt attempt, Configuration conf)
  throws Exception {
  TaskAttemptContext tContext = new TaskAttemptContextImpl(conf, 
      TypeConverter.fromYarn(attempt.getID()));
  
  TextOutputFormat<?, ?> theOutputFormat = new TextOutputFormat();
  RecordWriter theRecordWriter = theOutputFormat
      .getRecordWriter(tContext);
  
  NullWritable nullWritable = NullWritable.get();
  try {
    theRecordWriter.write(key1, val1);
    theRecordWriter.write(null, nullWritable);
    theRecordWriter.write(null, val1);
    theRecordWriter.write(nullWritable, val2);
    theRecordWriter.write(key2, nullWritable);
    theRecordWriter.write(key1, null);
    theRecordWriter.write(null, null);
    theRecordWriter.write(key2, val2);
  } finally {
    theRecordWriter.close(tContext);
  }
  
  OutputFormat outputFormat = ReflectionUtils.newInstance(
      tContext.getOutputFormatClass(), conf);
  OutputCommitter committer = outputFormat.getOutputCommitter(tContext);
  committer.commitTask(tContext);
}

Example 13

Source File: TestRecovery.java From hadoop with Apache License 2.0

5 votes

private void writeOutput(TaskAttempt attempt, Configuration conf)
  throws Exception {
  TaskAttemptContext tContext = new TaskAttemptContextImpl(conf, 
      TypeConverter.fromYarn(attempt.getID()));
  
  TextOutputFormat<?, ?> theOutputFormat = new TextOutputFormat();
  RecordWriter theRecordWriter = theOutputFormat
      .getRecordWriter(tContext);
  
  NullWritable nullWritable = NullWritable.get();
  try {
    theRecordWriter.write(key1, val1);
    theRecordWriter.write(null, nullWritable);
    theRecordWriter.write(null, val1);
    theRecordWriter.write(nullWritable, val2);
    theRecordWriter.write(key2, nullWritable);
    theRecordWriter.write(key1, null);
    theRecordWriter.write(null, null);
    theRecordWriter.write(key2, val2);
  } finally {
    theRecordWriter.close(tContext);
  }
  
  OutputFormat outputFormat = ReflectionUtils.newInstance(
      tContext.getOutputFormatClass(), conf);
  OutputCommitter committer = outputFormat.getOutputCommitter(tContext);
  committer.commitTask(tContext);
}

Example 14

Source File: TestRecovery.java From hadoop with Apache License 2.0

5 votes

private void writeBadOutput(TaskAttempt attempt, Configuration conf)
  throws Exception {
  TaskAttemptContext tContext = new TaskAttemptContextImpl(conf, 
      TypeConverter.fromYarn(attempt.getID()));
 
  TextOutputFormat<?, ?> theOutputFormat = new TextOutputFormat();
  RecordWriter theRecordWriter = theOutputFormat
      .getRecordWriter(tContext);
  
  NullWritable nullWritable = NullWritable.get();
  try {
    theRecordWriter.write(key2, val2);
    theRecordWriter.write(null, nullWritable);
    theRecordWriter.write(null, val2);
    theRecordWriter.write(nullWritable, val1);
    theRecordWriter.write(key1, nullWritable);
    theRecordWriter.write(key2, null);
    theRecordWriter.write(null, null);
    theRecordWriter.write(key1, val1);
  } finally {
    theRecordWriter.close(tContext);
  }
  
  OutputFormat outputFormat = ReflectionUtils.newInstance(
      tContext.getOutputFormatClass(), conf);
  OutputCommitter committer = outputFormat.getOutputCommitter(tContext);
  committer.commitTask(tContext);
}

Example 15

Source File: Chain.java From big-c with Apache License 2.0

5 votes

@SuppressWarnings("unchecked")
<KEYIN, VALUEIN, KEYOUT, VALUEOUT> void runReducer(
    TaskInputOutputContext<KEYIN, VALUEIN, KEYOUT, VALUEOUT> context)
    throws IOException, InterruptedException {
  RecordWriter<KEYOUT, VALUEOUT> rw = new ChainRecordWriter<KEYOUT, VALUEOUT>(
      context);
  Reducer.Context reducerContext = createReduceContext(rw,
      (ReduceContext) context, rConf);
  reducer.run(reducerContext);
  rw.close(context);
}

Example 16

Source File: SafeFileOutputCommitterTest.java From datawave with Apache License 2.0

5 votes

private void writeMapFileOutput(RecordWriter theRecordWriter, TaskAttemptContext context) throws IOException, InterruptedException {
    try {
        int key = 0;
        for (int i = 0; i < 10; ++i) {
            key = i;
            Text val = (i % 2 == 1) ? val1 : val2;
            theRecordWriter.write(new LongWritable(key), val);
        }
    } finally {
        theRecordWriter.close(context);
    }
}

Example 17

Source File: TestFileOutputCommitter.java From big-c with Apache License 2.0

5 votes

private void writeMapFileOutput(RecordWriter theRecordWriter,
    TaskAttemptContext context) throws IOException, InterruptedException {
  try {
    int key = 0;
    for (int i = 0 ; i < 10; ++i) {
      key = i;
      Text val = (i%2 == 1) ? val1 : val2;
      theRecordWriter.write(new LongWritable(key),
          val);        
    }
  } finally {
    theRecordWriter.close(context);
  }
}

Example 18

Source File: TestMRSequenceFileAsBinaryOutputFormat.java From hadoop with Apache License 2.0

4 votes

public void testBinary() throws IOException, InterruptedException {
  Configuration conf = new Configuration();
  Job job = Job.getInstance(conf);
  
  Path outdir = new Path(System.getProperty("test.build.data", "/tmp"),
                  "outseq");
  Random r = new Random();
  long seed = r.nextLong();
  r.setSeed(seed);

  FileOutputFormat.setOutputPath(job, outdir);

  SequenceFileAsBinaryOutputFormat.setSequenceFileOutputKeyClass(job, 
                                        IntWritable.class );
  SequenceFileAsBinaryOutputFormat.setSequenceFileOutputValueClass(job, 
                                        DoubleWritable.class ); 

  SequenceFileAsBinaryOutputFormat.setCompressOutput(job, true);
  SequenceFileAsBinaryOutputFormat.setOutputCompressionType(job, 
                                                     CompressionType.BLOCK);

  BytesWritable bkey = new BytesWritable();
  BytesWritable bval = new BytesWritable();

  TaskAttemptContext context = 
    MapReduceTestUtil.createDummyMapTaskAttemptContext(job.getConfiguration());
  OutputFormat<BytesWritable, BytesWritable> outputFormat = 
    new SequenceFileAsBinaryOutputFormat();
  OutputCommitter committer = outputFormat.getOutputCommitter(context);
  committer.setupJob(job);
  RecordWriter<BytesWritable, BytesWritable> writer = outputFormat.
    getRecordWriter(context);

  IntWritable iwritable = new IntWritable();
  DoubleWritable dwritable = new DoubleWritable();
  DataOutputBuffer outbuf = new DataOutputBuffer();
  LOG.info("Creating data by SequenceFileAsBinaryOutputFormat");
  try {
    for (int i = 0; i < RECORDS; ++i) {
      iwritable = new IntWritable(r.nextInt());
      iwritable.write(outbuf);
      bkey.set(outbuf.getData(), 0, outbuf.getLength());
      outbuf.reset();
      dwritable = new DoubleWritable(r.nextDouble());
      dwritable.write(outbuf);
      bval.set(outbuf.getData(), 0, outbuf.getLength());
      outbuf.reset();
      writer.write(bkey, bval);
    }
  } finally {
    writer.close(context);
  }
  committer.commitTask(context);
  committer.commitJob(job);

  InputFormat<IntWritable, DoubleWritable> iformat =
    new SequenceFileInputFormat<IntWritable, DoubleWritable>();
  int count = 0;
  r.setSeed(seed);
  SequenceFileInputFormat.setInputPaths(job, outdir);
  LOG.info("Reading data by SequenceFileInputFormat");
  for (InputSplit split : iformat.getSplits(job)) {
    RecordReader<IntWritable, DoubleWritable> reader =
      iformat.createRecordReader(split, context);
    MapContext<IntWritable, DoubleWritable, BytesWritable, BytesWritable> 
      mcontext = new MapContextImpl<IntWritable, DoubleWritable,
        BytesWritable, BytesWritable>(job.getConfiguration(), 
        context.getTaskAttemptID(), reader, null, null, 
        MapReduceTestUtil.createDummyReporter(), 
        split);
    reader.initialize(split, mcontext);
    try {
      int sourceInt;
      double sourceDouble;
      while (reader.nextKeyValue()) {
        sourceInt = r.nextInt();
        sourceDouble = r.nextDouble();
        iwritable = reader.getCurrentKey();
        dwritable = reader.getCurrentValue();
        assertEquals(
            "Keys don't match: " + "*" + iwritable.get() + ":" + 
                                         sourceInt + "*",
            sourceInt, iwritable.get());
        assertTrue(
            "Vals don't match: " + "*" + dwritable.get() + ":" +
                                         sourceDouble + "*",
            Double.compare(dwritable.get(), sourceDouble) == 0 );
        ++count;
      }
    } finally {
      reader.close();
    }
  }
  assertEquals("Some records not found", RECORDS, count);
}

Example 19

Source File: TestMRSequenceFileAsBinaryOutputFormat.java From big-c with Apache License 2.0

4 votes

public void testBinary() throws IOException, InterruptedException {
  Configuration conf = new Configuration();
  Job job = Job.getInstance(conf);
  
  Path outdir = new Path(System.getProperty("test.build.data", "/tmp"),
                  "outseq");
  Random r = new Random();
  long seed = r.nextLong();
  r.setSeed(seed);

  FileOutputFormat.setOutputPath(job, outdir);

  SequenceFileAsBinaryOutputFormat.setSequenceFileOutputKeyClass(job, 
                                        IntWritable.class );
  SequenceFileAsBinaryOutputFormat.setSequenceFileOutputValueClass(job, 
                                        DoubleWritable.class ); 

  SequenceFileAsBinaryOutputFormat.setCompressOutput(job, true);
  SequenceFileAsBinaryOutputFormat.setOutputCompressionType(job, 
                                                     CompressionType.BLOCK);

  BytesWritable bkey = new BytesWritable();
  BytesWritable bval = new BytesWritable();

  TaskAttemptContext context = 
    MapReduceTestUtil.createDummyMapTaskAttemptContext(job.getConfiguration());
  OutputFormat<BytesWritable, BytesWritable> outputFormat = 
    new SequenceFileAsBinaryOutputFormat();
  OutputCommitter committer = outputFormat.getOutputCommitter(context);
  committer.setupJob(job);
  RecordWriter<BytesWritable, BytesWritable> writer = outputFormat.
    getRecordWriter(context);

  IntWritable iwritable = new IntWritable();
  DoubleWritable dwritable = new DoubleWritable();
  DataOutputBuffer outbuf = new DataOutputBuffer();
  LOG.info("Creating data by SequenceFileAsBinaryOutputFormat");
  try {
    for (int i = 0; i < RECORDS; ++i) {
      iwritable = new IntWritable(r.nextInt());
      iwritable.write(outbuf);
      bkey.set(outbuf.getData(), 0, outbuf.getLength());
      outbuf.reset();
      dwritable = new DoubleWritable(r.nextDouble());
      dwritable.write(outbuf);
      bval.set(outbuf.getData(), 0, outbuf.getLength());
      outbuf.reset();
      writer.write(bkey, bval);
    }
  } finally {
    writer.close(context);
  }
  committer.commitTask(context);
  committer.commitJob(job);

  InputFormat<IntWritable, DoubleWritable> iformat =
    new SequenceFileInputFormat<IntWritable, DoubleWritable>();
  int count = 0;
  r.setSeed(seed);
  SequenceFileInputFormat.setInputPaths(job, outdir);
  LOG.info("Reading data by SequenceFileInputFormat");
  for (InputSplit split : iformat.getSplits(job)) {
    RecordReader<IntWritable, DoubleWritable> reader =
      iformat.createRecordReader(split, context);
    MapContext<IntWritable, DoubleWritable, BytesWritable, BytesWritable> 
      mcontext = new MapContextImpl<IntWritable, DoubleWritable,
        BytesWritable, BytesWritable>(job.getConfiguration(), 
        context.getTaskAttemptID(), reader, null, null, 
        MapReduceTestUtil.createDummyReporter(), 
        split);
    reader.initialize(split, mcontext);
    try {
      int sourceInt;
      double sourceDouble;
      while (reader.nextKeyValue()) {
        sourceInt = r.nextInt();
        sourceDouble = r.nextDouble();
        iwritable = reader.getCurrentKey();
        dwritable = reader.getCurrentValue();
        assertEquals(
            "Keys don't match: " + "*" + iwritable.get() + ":" + 
                                         sourceInt + "*",
            sourceInt, iwritable.get());
        assertTrue(
            "Vals don't match: " + "*" + dwritable.get() + ":" +
                                         sourceDouble + "*",
            Double.compare(dwritable.get(), sourceDouble) == 0 );
        ++count;
      }
    } finally {
      reader.close();
    }
  }
  assertEquals("Some records not found", RECORDS, count);
}

Example 20

Source File: CBMutationOutputFormatterTest.java From datawave with Apache License 2.0

2 votes

@Test
public void testRecordWriterClose() throws IOException, InterruptedException {
    
    CBMutationOutputFormatterTest.logger.info("testRecordWriterClose called...");
    
    try {
        
        CBMutationOutputFormatter uut = new CBMutationOutputFormatter();
        
        Assert.assertNotNull("CBMutationOutputFormatter constructor failed to generate an instance.", uut);
        
        Configuration conf = new Configuration();
        
        String simulationKey = String.format("%s.%s.%s", AccumuloOutputFormat.class.getSimpleName(), Features.SIMULATION_MODE.getDeclaringClass()
                        .getSimpleName(), StringUtils.camelize(Features.SIMULATION_MODE.name().toLowerCase()));
        
        conf.set(simulationKey, Boolean.TRUE.toString());
        conf.setInt("AccumuloOutputFormat.GeneralOpts.LogLevel", Level.ALL.toInt());
        
        TaskAttemptContext attempt = new TaskAttemptContextImpl(conf, new TaskAttemptID());
        
        RecordWriter<Text,Mutation> rw = uut.getRecordWriter(attempt);
        
        Assert.assertNotNull("CBMutationOutputFormatter#getRecordWriter failed to create an instance of RecordWriter", rw);
        
        TaskAttemptContext context = null;
        
        rw.close(context);
        
        List<String> entries = uutAppender.retrieveLogsEntries();
        
        Assert.assertTrue("CBMutationOutputFormatter$getRecordWriter#close failed to create simulation warning message.",
                        processOutputContains(entries, "Simulating output only. No writes to tables will occur"));
        Assert.assertTrue("CBMutationOutputFormatter$getRecordWriter#close failed to create Event Table name message.",
                        processOutputContains(entries, "Event Table Name property for "));
        Assert.assertTrue("CBMutationOutputFormatter$getRecordWriter#close failed to create simulation warning message.",
                        processOutputContains(entries, "mutations written: "));
        
    } finally {
        
        CBMutationOutputFormatterTest.logger.info("testRecordWriterClose completed.");
    }
}