Package org.apache.hadoop.fs

Examples of org.apache.hadoop.fs.FSDataInputStream.readUTF()

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    Path idPath = new Path(rootdir, HConstants.CLUSTER_ID_FILE_NAME);
    String clusterId = null;
    if (fs.exists(idPath)) {
      FSDataInputStream in = fs.open(idPath);
      try {
        clusterId = in.readUTF();
      } catch (EOFException eof) {
        LOG.warn("Cluster ID file "+idPath.toString()+" was empty");
      } finally{
        in.close();
      }
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    Path idPath = new Path(rootdir, HConstants.CLUSTER_ID_FILE_NAME);
    String clusterId = null;
    if (fs.exists(idPath)) {
      FSDataInputStream in = fs.open(idPath);
      try {
        clusterId = in.readUTF();
      } catch (EOFException eof) {
        LOG.warn("Cluster ID file "+idPath.toString()+" was empty");
      } finally{
        in.close();
      }
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      // If not pb'd, make it so.
      if (!ProtobufUtil.isPBMagicPrefix(content)) {
        String cid = new String();
        in = fs.open(idPath);
        try {
          cid = in.readUTF();
          clusterId = new ClusterId(cid);
        } catch (EOFException eof) {
          LOG.warn("Cluster ID file " + idPath.toString() + " was empty");
        } finally {
          in.close();
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    Path idPath = new Path(rootdir, HConstants.CLUSTER_ID_FILE_NAME);
    String clusterId = null;
    if (fs.exists(idPath)) {
      FSDataInputStream in = fs.open(idPath);
      try {
        clusterId = in.readUTF();
      } catch (EOFException eof) {
        LOG.warn("Cluster ID file "+idPath.toString()+" was empty");
      } finally{
        in.close();
      }
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  private static String getJobSummary(FileContext fc, Path path)
      throws IOException {
    Path qPath = fc.makeQualified(path);
    FSDataInputStream in = fc.open(qPath);
    String jobSummaryString = in.readUTF();
    in.close();
    return jobSummaryString;
  }

  private void checkHistoryParsing(final int numMaps, final int numReduces,
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      byte[] buffer = new byte[magic.length];
      file.readFully(buffer);
      if (Arrays.equals(buffer, magic)) {
        int count = file.readInt();
        for (int i = 0; i < count; i++) {
          String key = file.readUTF();
          String value = file.readUTF();
          opts.put(key, value);
        }
      } else {
        file.seek(0);
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      file.readFully(buffer);
      if (Arrays.equals(buffer, magic)) {
        int count = file.readInt();
        for (int i = 0; i < count; i++) {
          String key = file.readUTF();
          String value = file.readUTF();
          opts.put(key, value);
        }
      } else {
        file.seek(0);
        return file;
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    Path idPath = new Path(rootdir, HConstants.CLUSTER_ID_FILE_NAME);
    String clusterId = null;
    if (fs.exists(idPath)) {
      FSDataInputStream in = fs.open(idPath);
      try {
        clusterId = in.readUTF();
      } catch (EOFException eof) {
        LOG.warn("Cluster ID file "+idPath.toString()+" was empty");
      } finally{
        in.close();
      }
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    Path idPath = new Path(rootdir, HConstants.CLUSTER_ID_FILE_NAME);
    String clusterId = null;
    if (fs.exists(idPath)) {
      FSDataInputStream in = fs.open(idPath);
      try {
        clusterId = in.readUTF();
      } catch (EOFException eof) {
        LOG.warn("Cluster ID file "+idPath.toString()+" was empty");
      } finally{
        in.close();
      }
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  private static String getJobSummary(FileContext fc, Path path)
      throws IOException {
    Path qPath = fc.makeQualified(path);
    FSDataInputStream in = fc.open(qPath);
    String jobSummaryString = in.readUTF();
    in.close();
    return jobSummaryString;
  }

  private void checkHistoryParsing(final int numMaps, final int numReduces,
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