Package org.apache.hadoop.mapreduce

Examples of org.apache.hadoop.mapreduce.Counter

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      return;
    }

    try {
      for (Map.Entry<String, Long> entry:scanMetrics.getMetricsMap().entrySet()) {
        Counter ct = (Counter)getCounter.invoke(context,
            HBASE_COUNTER_GROUP_NAME, entry.getKey());

        ct.increment(entry.getValue());
      }
      ((Counter) getCounter.invoke(context, HBASE_COUNTER_GROUP_NAME,
          "NUM_SCANNER_RESTARTS")).increment(numScannerRestarts);
    } catch (Exception e) {
      LOG.debug("can't update counter." + StringUtils.stringifyException(e));
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  @Test(expected = IOException.class)
  public final void testMapperForNullKeyValue() throws IOException,
      InterruptedException {
    Mapper.Context context = mock(Mapper.Context.class);
    Counters counters = new Counters();
    Counter counter = counters.findCounter(MergeRecordCounter.BAD_RECORD);
    when(context.getCounter(MergeRecordCounter.BAD_RECORD)).thenReturn(
        counter);
    MergeKeyMapper mapper = new MergeKeyMapper();
    Text val = new Text("valueOfKey");
    mapper.map(null, val, context);
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  @Test
  public final void testMapperValidValues() throws IOException,
      InterruptedException {
    Mapper.Context context = mock(Mapper.Context.class);
    Counters counters = new Counters();
    Counter counter = counters
        .findCounter(MergeRecordCounter.TOTAL_RECORDS_NEW);
    when(context.getCounter(MergeRecordCounter.TOTAL_RECORDS_NEW))
        .thenReturn(counter);

    MergeKeyMapper mapper = new MergeKeyMapper();
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    values.add(value2);
    values.add(value3);

    Reducer.Context context = mock(Reducer.Context.class);
    Counters counters = new Counters();
    Counter counter = counters.findCounter(DedupRecordCounter.OUTPUT);
    when(context.getCounter(DedupRecordCounter.OUTPUT)).thenReturn(counter);
    DedupValueReducer dedupValueReducer = new DedupValueReducer();
    dedupValueReducer.reduce(hihoTuple, values, context);
    verify(context).write(value1, key);
    assertEquals(1, context.getCounter(DedupRecordCounter.OUTPUT)
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    ArrayList<String> values = new ArrayList<String>();
    values.add(value1);

    Reducer.Context context = mock(Reducer.Context.class);
    Counters counters = new Counters();
    Counter counter = counters.findCounter(DedupRecordCounter.OUTPUT);
    when(context.getCounter(DedupRecordCounter.OUTPUT)).thenReturn(counter);
    DedupValueReducer dedupValueReducer = new DedupValueReducer();
    dedupValueReducer.reduce(hihoTuple, values, context);
    verify(context).write(value1, key);
    assertEquals(1, context.getCounter(DedupRecordCounter.OUTPUT)
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    ArrayList<Text> values = new ArrayList<Text>();
    values.add(value1);

    Reducer.Context context = mock(Reducer.Context.class);
    Counters counters = new Counters();
    Counter counter = counters.findCounter(DedupRecordCounter.OUTPUT);
    when(context.getCounter(DedupRecordCounter.OUTPUT)).thenReturn(counter);
    DedupValueReducer dedupReducer = new DedupValueReducer();
    dedupReducer.reduce(hihoTuple, values, context);
    verify(context).write(value1, key);
    assertEquals(1, context.getCounter(DedupRecordCounter.OUTPUT)
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    ArrayList<BytesWritable> values = new ArrayList<BytesWritable>();
    values.add(value1);

    Reducer.Context context = mock(Reducer.Context.class);
    Counters counters = new Counters();
    Counter counter = counters.findCounter(DedupRecordCounter.OUTPUT);
    when(context.getCounter(DedupRecordCounter.OUTPUT)).thenReturn(counter);
    DedupValueReducer dedupReducer = new DedupValueReducer();
    dedupReducer.reduce(hihoTuple, values, context);
    verify(context).write(value1, key);
    assertEquals(1, context.getCounter(DedupRecordCounter.OUTPUT)
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    ArrayList<IntWritable> values = new ArrayList<IntWritable>();
    values.add(value1);

    Reducer.Context context = mock(Reducer.Context.class);
    Counters counters = new Counters();
    Counter counter = counters.findCounter(DedupRecordCounter.OUTPUT);
    when(context.getCounter(DedupRecordCounter.OUTPUT)).thenReturn(counter);
    DedupValueReducer dedupReducer = new DedupValueReducer();
    dedupReducer.reduce(hihoTuple, values, context);
    verify(context).write(value1, key);
    assertEquals(1, context.getCounter(DedupRecordCounter.OUTPUT)
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  @Test
  public final void testMapperValidValues() throws IOException,
      InterruptedException {
    Mapper.Context context = mock(Mapper.Context.class);
    Counters counters = new Counters();
    Counter counter = counters
        .findCounter(DedupRecordCounter.TOTAL_RECORDS_READ);
    when(context.getCounter(DedupRecordCounter.TOTAL_RECORDS_READ))
        .thenReturn(counter);
    DedupKeyMapper<Text, String> mapper = new DedupKeyMapper<Text, String>();
    Text key = new Text("abc123");
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  @Test(expected = IOException.class)
  public final void testMapperForNullKeyValue() throws IOException,
      InterruptedException {
    Mapper.Context context = mock(Mapper.Context.class);
    Counters counters = new Counters();
    Counter counter = counters.findCounter(DedupRecordCounter.BAD_RECORD);
    when(context.getCounter(DedupRecordCounter.BAD_RECORD)).thenReturn(
        counter);
    DedupKeyMapper mapper = new DedupKeyMapper();
    String val = "valueOfKey";
    mapper.map(null, val, context);
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Related Classes of org.apache.hadoop.mapreduce.Counter

  • co.nubetech.hiho.dedup.TestDedupKeyMapper
  • co.nubetech.hiho.dedup.TestDedupKeyReducer
  • co.nubetech.hiho.dedup.TestDedupValueMapper
  • co.nubetech.hiho.dedup.TestDedupValueReducer
  • co.nubetech.hiho.merge.TestMergeKeyMapper
  • co.nubetech.hiho.merge.TestMergeKeyReducer
  • co.nubetech.hiho.merge.TestMergeValueMapper
  • co.nubetech.hiho.merge.TestMergeValueReducer
  • com.asakusafw.runtime.compatibility.JobCompatibility$MockStatusReporter
  • com.ebay.erl.mobius.core.mapred.CounterUpdateThread
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