Package org.apache.accumulo.server.tabletserver.log

Examples of org.apache.accumulo.server.tabletserver.log.MultiReader

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        } finally {
          f.close();
        }
      } else {
        // read the log entries sorted in a map file
        MultiReader input = new MultiReader(fs, conf, file);
        while (input.next(key, value)) {
          printLogEvent(key, value, row, rowMatcher, ke, tabletIds, opts.maxMutations);
        }
      }
    }
  }
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          }
        }
      } else {
        try {
          // read the log entries sorted in a map file
          MultiReader input = new MultiReader(fs, conf, file);
          while (input.next(key, value)) {
            printLogEvent(key, value, row, rowMatcher, ke, tabletIds, max);
          }
        } catch (FileNotFoundException ex) {
          SequenceFile.Reader input = new SequenceFile.Reader(local, new Path(file), conf);
          while (input.next(key, value)) {
            printLogEvent(key, value, row, rowMatcher, ke, tabletIds, max);
          }
          input.close();
        }
      }
    }
  }
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        } finally {
          f.close();
        }
      } else {
        // read the log entries sorted in a map file
        MultiReader input = new MultiReader(fs, conf, file);
        while (input.next(key, value)) {
          printLogEvent(key, value, row, rowMatcher, ke, tabletIds, opts.maxMutations);
        }
      }
    }
  }
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          printLogEvent(key, value, row, rowMatcher, ke, tabletIds, max);
        }
      } else {
        try {
          // read the log entries sorted in a map file
          MultiReader input = new MultiReader(fs, conf, file);
          while (input.next(key, value)) {
            printLogEvent(key, value, row, rowMatcher, ke, tabletIds, max);
          }
        } catch (FileNotFoundException ex) {
          SequenceFile.Reader input = new SequenceFile.Reader(local, new Path(file), conf);
          while (input.next(key, value)) {
            printLogEvent(key, value, row, rowMatcher, ke, tabletIds, max);
          }
        }
      }
    }
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    }
  }
 
  @Test
  public void testMultiReader() throws IOException {
    MultiReader reader = new MultiReader(fs, conf, "manyMaps");
    IntWritable key = new IntWritable();
    BytesWritable value = new BytesWritable();
   
    for (int i = 0; i < 1000; i++) {
      if (i == 10)
        continue;
      assertTrue(reader.next(key, value));
      assertEquals(i, key.get());
    }
    assertEquals(value.compareTo(new BytesWritable("someValue".getBytes())), 0);
    assertFalse(reader.next(key, value));
   
    key.set(500);
    assertTrue(reader.seek(key));
    scan(reader, 500);
    key.set(10);
    assertFalse(reader.seek(key));
    scan(reader, 10);
    key.set(1000);
    assertFalse(reader.seek(key));
    assertFalse(reader.next(key, value));
    key.set(-1);
    assertFalse(reader.seek(key));
    key.set(0);
    assertTrue(reader.next(key, value));
    assertEquals(0, key.get());
    reader.close();
   
    fs.delete(new Path("manyMaps/even"), true);
    reader = new MultiReader(fs, conf, "manyMaps");
    key.set(501);
    assertTrue(reader.seek(key));
    scanOdd(reader, 501);
    key.set(1000);
    assertFalse(reader.seek(key));
    assertFalse(reader.next(key, value));
    key.set(-1);
    assertFalse(reader.seek(key));
    key.set(1);
    assertTrue(reader.next(key, value));
    assertEquals(1, key.get());
    reader.close();
   
  }
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        } finally {
          f.close();
        }
      } else {
        // read the log entries sorted in a map file
        MultiReader input = new MultiReader(fs, conf, file);
        while (input.next(key, value)) {
          printLogEvent(key, value, row, rowMatcher, ke, tabletIds, opts.maxMutations);
        }
      }
    }
  }
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          printLogEvent(key, value, row, max);
        }
      } else {
        try {
          // read the log entries sorted in a map file
          MultiReader input = new MultiReader(fs, conf, file);
          while (input.next(key, value)) {
            printLogEvent(key, value, row, max);
          }
        } catch (FileNotFoundException ex) {
          SequenceFile.Reader input = new SequenceFile.Reader(local, new Path(file), conf);
          while (input.next(key, value)) {
            printLogEvent(key, value, row, max);
          }
        }
      }
    }
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Related Classes of org.apache.accumulo.server.tabletserver.log.MultiReader

  • org.apache.accumulo.server.logger.LogReader
  • org.apache.accumulo.server.tabletserver.log.MultiReaderTest
  • org.apache.commons.collections.buffer.PriorityBuffer
  • org.apache.hadoop.fs.Path
  • org.apache.hadoop.io.DataInputBuffer
  • org.apache.hadoop.io.DataOutputBuffer
  • org.apache.hadoop.io.MapFile.Reader
  • org.apache.hadoop.io.WritableComparable
  • java.io.IOException
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