void checkFormat(Job job) throws Exception {
    TaskAttemptContext attemptContext =
        new TaskAttemptContext(job.getConfiguration(), new TaskAttemptID("123", 0, false, 1, 2));

    MyClassMessagePackBase64LineInputFormat format = new MyClassMessagePackBase64LineInputFormat();
    FileInputFormat.setInputPaths(job, workDir);

    List<InputSplit> splits = format.getSplits(job);
    for (int j = 0; j < splits.size(); j++) {
      RecordReader<LongWritable, MyClassWritable> reader =
          format.createRecordReader(splits.get(j), attemptContext);
      reader.initialize(splits.get(j), attemptContext);

      int count = 0;
      try {
        while (reader.nextKeyValue()) {
          LongWritable key = reader.getCurrentKey();
          MyClassWritable val = reader.getCurrentValue();
          MyClass mc = val.get();
          assertEquals(mc.v, count);
          assertEquals(mc.s, Integer.toString(count));
          count++;
        }
      } finally {
        reader.close();
      }
    }
  }
예제 #2
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  /**
   * Generate the list of files and make them into FileSplits. This needs to be copied to insert a
   * filter on acceptable data
   */
  @Override
  public List<InputSplit> getSplits(JobContext job) throws IOException {
    long minSize = Math.max(getFormatMinSplitSize(), getMinSplitSize(job));
    long maxSize = getMaxSplitSize(job);
    long desiredMappers =
        job.getConfiguration().getLong("org.systemsbiology.jxtandem.DesiredXMLInputMappers", 0);

    // generate splits
    List<InputSplit> splits = new ArrayList<InputSplit>();
    List<FileStatus> fileStatuses = listStatus(job);
    boolean forceNumberMappers = fileStatuses.size() == 1;
    for (FileStatus file : fileStatuses) {
      Path path = file.getPath();
      if (!isPathAcceptable(path)) // filter acceptable data
      continue;
      FileSystem fs = path.getFileSystem(job.getConfiguration());
      long length = file.getLen();
      BlockLocation[] blkLocations = fs.getFileBlockLocations(file, 0, length);
      if ((length != 0) && isSplitable(job, path)) {
        long blockSize = file.getBlockSize();
        // use desired mappers to force more splits
        if (forceNumberMappers && desiredMappers > 0)
          maxSize = Math.min(maxSize, (length / desiredMappers));

        long splitSize = computeSplitSize(blockSize, minSize, maxSize);

        long bytesRemaining = length;
        while (withinSlop(splitSize, bytesRemaining)) {
          int blkIndex = getBlockIndex(blkLocations, length - bytesRemaining);
          splits.add(
              new FileSplit(
                  path, length - bytesRemaining, splitSize, blkLocations[blkIndex].getHosts()));
          bytesRemaining -= splitSize;
        }

        if (bytesRemaining != 0) {
          splits.add(
              new FileSplit(
                  path,
                  length - bytesRemaining,
                  bytesRemaining,
                  blkLocations[blkLocations.length - 1].getHosts()));
        }
      } else if (length != 0) {
        splits.add(new FileSplit(path, 0, length, blkLocations[0].getHosts()));
      } else {
        // Create empty hosts array for zero length files
        splits.add(new FileSplit(path, 0, length, new String[0]));
      }
    }
    System.out.println("Total # of splits: " + splits.size());
    //     LOG.debug("Total # of splits: " + splits.size());
    return splits;
  }
예제 #3
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    public void reduce(IntWritable key, Iterable<Text> values, Context context)
        throws IOException, InterruptedException {
      List<Double> newCentroid = null;
      int numPoints = 0;

      for (Text value : values) {
        ++numPoints;

        List<Double> p = GetPoint(value.toString());

        if (newCentroid == null) {
          // initialize the new centroid to the first element
          newCentroid = new ArrayList<Double>(p);
        } else {
          for (int i = 0; i < newCentroid.size(); i++) {
            newCentroid.set(i, newCentroid.get(i) + p.get(i));
          }
        }
      }

      // now the newCentroid contains the sum of all the points
      // so to get the average of all the points, we need to
      // divide each entry by the total number of points

      for (int i = 0; i < newCentroid.size(); i++) {
        newCentroid.set(i, newCentroid.get(i) / (double) numPoints);
      }

      // now create a string containing all the new centroid's coordinates

      String s = null;
      for (Double d : newCentroid) {
        if (s == null) {
          s = d.toString();
        } else {
          s += " " + d.toString();
        }
      }

      newCentroids.add(s);

      if (newCentroids.size() == 10) {
        WriteNewCentroids(context);
      }

      // output the centroid ID and the centroid data
      context.write(key, new Text(s));
    }
예제 #4
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    protected static double Distance(List<Double> p1, List<Double> p2) {
      double sumOfSquaredDifferences = 0.0;

      for (int i = 0; i < p1.size(); i++) {
        sumOfSquaredDifferences += Math.pow(p1.get(i) - p2.get(i), 2.0);
      }

      return Math.pow(sumOfSquaredDifferences, 0.5);
    }
예제 #5
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  public int run(String[] args) throws Exception {
    // printUsage();
    /*
     * SETUP
     */
    Configuration argConf = getConf();
    Hashtable<String, String> confArg = new Hashtable<String, String>();
    setup(confArg, argConf);
    Date currentTime = new Date();
    Date endDate = new Date(new Long(confArg.get("timestamp_stop")));
    Boolean full_run = confArg.get("intermediate").matches("(?i).*true.*");
    Boolean quick_add = confArg.get("quick_add").matches("(?i).*true.*");
    logger.info("Running GeStore");

    // ZooKeeper setup
    Configuration config = HBaseConfiguration.create();
    zkWatcher = new ZooKeeperWatcher(config, "Testing", new HBaseAdmin(config));
    zkInstance =
        new ZooKeeper(
            ZKConfig.getZKQuorumServersString(config),
            config.getInt("zookeeper.session.timeout", -1),
            zkWatcher);

    if (!confArg.get("task_id").isEmpty()) {
      confArg.put("temp_path", confArg.get("temp_path") + confArg.get("task_id"));
    }

    String lockRequest = confArg.get("file_id");
    if (!confArg.get("run_id").isEmpty())
      lockRequest = lockRequest + "_" + confArg.get("run_id") + "_";
    if (!confArg.get("task_id").isEmpty())
      lockRequest = lockRequest + "_" + confArg.get("task_id") + "_";

    // Get type of movement
    toFrom type_move = checkArgs(confArg);
    if (type_move == toFrom.LOCAL2REMOTE && !confArg.get("format").equals("unknown")) {
      List<String> arguments = new ArrayList<String>();
      arguments.add("-Dinput=" + confArg.get("local_path"));
      arguments.add("-Dtable=" + confArg.get("file_id"));
      arguments.add("-Dtimestamp=" + confArg.get("timestamp_stop"));
      arguments.add("-Dtype=" + confArg.get("format"));
      arguments.add("-Dtarget_dir=" + confArg.get("base_path") + "_" + confArg.get("file_id"));
      arguments.add("-Dtemp_hdfs_path=" + confArg.get("temp_path"));
      arguments.add("-Drun_id=" + confArg.get("run_id"));
      if (!confArg.get("run_id").isEmpty()) arguments.add("-Drun_id=" + confArg.get("run_id"));
      if (!confArg.get("task_id").isEmpty()) arguments.add("-Dtask_id=" + confArg.get("task_id"));
      if (quick_add) arguments.add("-Dquick_add=" + confArg.get("quick_add"));
      String lockName = lock(lockRequest);
      String[] argumentString = arguments.toArray(new String[arguments.size()]);
      adddb.main(argumentString);
      unlock(lockName);
      System.exit(0);
    }

    // Database registration

    dbutil db_util = new dbutil(config);
    db_util.register_database(confArg.get("db_name_files"), true);
    db_util.register_database(confArg.get("db_name_runs"), true);
    db_util.register_database(confArg.get("db_name_updates"), true);
    FileSystem hdfs = FileSystem.get(config);
    FileSystem localFS = FileSystem.getLocal(config);

    // Get source type
    confArg.put("source", getSource(db_util, confArg.get("db_name_files"), confArg.get("file_id")));
    confArg.put(
        "database", isDatabase(db_util, confArg.get("db_name_files"), confArg.get("file_id")));
    if (!confArg.get("source").equals("local")
        && type_move == toFrom.REMOTE2LOCAL
        && !confArg.get("timestamp_stop").equals(Integer.toString(Integer.MAX_VALUE))) {
      confArg.put("timestamp_stop", Long.toString(latestVersion(confArg, db_util)));
    }

    /*
     * Get previous timestamp
     */
    Get run_id_get = new Get(confArg.get("run_id").getBytes());
    Result run_get = db_util.doGet(confArg.get("db_name_runs"), run_id_get);
    KeyValue run_file_prev =
        run_get.getColumnLatest(
            "d".getBytes(), (confArg.get("file_id") + "_db_timestamp").getBytes());
    String last_timestamp = new String("0");
    if (null != run_file_prev && !confArg.get("source").equals("local")) {
      long last_timestamp_real = run_file_prev.getTimestamp();
      Long current_timestamp = new Long(confArg.get("timestamp_real"));
      if ((current_timestamp - last_timestamp_real) > 36000) {
        last_timestamp = new String(run_file_prev.getValue());
        Integer lastTimestamp = new Integer(last_timestamp);
        lastTimestamp += 1;
        last_timestamp = lastTimestamp.toString();
        logger.info("Last timestamp: " + last_timestamp + " End data: " + endDate);
        Date last_run = new Date(run_file_prev.getTimestamp());
        if (last_run.before(endDate) && !full_run) {
          confArg.put("timestamp_start", last_timestamp);
        }
      }
    }

    Integer tse = new Integer(confArg.get("timestamp_stop"));
    Integer tss = new Integer(confArg.get("timestamp_start"));
    if (tss > tse) {
      logger.info("No new version of requested file.");
      return 0;
    }

    /*
     * Generate file
     */

    String lockName = lock(lockRequest);

    Get file_id_get = new Get(confArg.get("file_id").getBytes());
    Result file_get = db_util.doGet(confArg.get("db_name_files"), file_id_get);
    if (!file_get.isEmpty()) {
      boolean found =
          hasFile(
              db_util,
              hdfs,
              confArg.get("db_name_files"),
              confArg.get("file_id"),
              getFullPath(confArg));
      if (confArg.get("source").equals("fullfile")) {
        found = false;
      }
      String filenames_put =
          getFileNames(
              db_util, confArg.get("db_name_files"), confArg.get("file_id"), getFullPath(confArg));
      // Filename not found in file database
      if (!found && type_move == toFrom.REMOTE2LOCAL) {
        if (!confArg.get("source").equals("local")) {
          // Generate intermediate file
          if (getFile(hdfs, confArg, db_util) == null) {
            unlock(lockName);
            return 1;
          }
          // Put generated file into file database
          if (!confArg.get("format").equals("fullfile")) {
            putFileEntry(
                db_util,
                hdfs,
                confArg.get("db_name_files"),
                confArg.get("file_id"),
                confArg.get("full_file_name"),
                confArg.get("source"));
          }
        } else {
          logger.warn("Remote file not found, and cannot be generated! File: " + confArg);
          unlock(lockName);
          return 1;
        }
      }
    } else {
      if (type_move == toFrom.REMOTE2LOCAL) {
        logger.warn("Remote file not found, and cannot be generated.");
        unlock(lockName);
        return 1;
      }
    }

    /*
     * Copy file
     * Update tables
     */

    if (type_move == toFrom.LOCAL2REMOTE) {
      if (!confArg.get("format").equals("fullfile")) {
        putFileEntry(
            db_util,
            hdfs,
            confArg.get("db_name_files"),
            confArg.get("file_id"),
            getFullPath(confArg),
            confArg.get("source"));
      }
      putRunEntry(
          db_util,
          confArg.get("db_name_runs"),
          confArg.get("run_id"),
          confArg.get("file_id"),
          confArg.get("type"),
          confArg.get("timestamp_real"),
          confArg.get("timestamp_stop"),
          getFullPath(confArg),
          confArg.get("delimiter"));
      hdfs.copyFromLocalFile(new Path(confArg.get("local_path")), new Path(getFullPath(confArg)));
    } else if (type_move == toFrom.REMOTE2LOCAL) {
      FileStatus[] files = hdfs.globStatus(new Path(getFullPath(confArg) + "*"));
      putRunEntry(
          db_util,
          confArg.get("db_name_runs"),
          confArg.get("run_id"),
          confArg.get("file_id"),
          confArg.get("type"),
          confArg.get("timestamp_real"),
          confArg.get("timestamp_stop"),
          getFullPath(confArg),
          confArg.get("delimiter"));
      unlock(lockName);
      for (FileStatus file : files) {
        Path cur_file = file.getPath();
        Path cur_local_path =
            new Path(new String(confArg.get("local_path") + confArg.get("file_id")));
        String suffix = getSuffix(getFileName(confArg), cur_file.getName());
        if (suffix.length() > 0) {
          cur_local_path = cur_local_path.suffix(new String("." + suffix));
        }
        if (confArg.get("copy").equals("true")) {
          String crc = hdfs.getFileChecksum(cur_file).toString();
          if (checksumLocalTest(cur_local_path, crc)) {
            continue;
          } else {
            hdfs.copyToLocalFile(cur_file, cur_local_path);
            writeChecksum(cur_local_path, crc);
          }
        } else {
          System.out.println(cur_local_path + "\t" + cur_file);
        }
      }
    }
    unlock(lockName);
    return 0;
  }