Ejemplo n.º 1
0
 private boolean checkSocket(Socket s) {
   int l = deny.size();
   byte address[] = s.getInetAddress().getAddress();
   for (int i = 0; i < l; i++) {
     AddressMatcher match = (AddressMatcher) deny.elementAt(i);
     if (match.matches(address)) return false;
   }
   l = accept.size();
   for (int i = 0; i < l; i++) {
     AddressMatcher match = (AddressMatcher) accept.elementAt(i);
     if (match.matches(address)) return true;
   }
   return false;
 }
Ejemplo n.º 2
0
  /**
   * Checks incoming connections to see if they should be allowed. If not in paranoid mode, always
   * returns true.
   *
   * @param s The socket to inspect.
   * @return Whether the connection should be allowed.
   */
  protected boolean allowConnection(Socket s) {
    if (!paranoid) {
      return true;
    }

    int l = deny.size();
    byte address[] = s.getInetAddress().getAddress();
    for (int i = 0; i < l; i++) {
      AddressMatcher match = (AddressMatcher) deny.elementAt(i);
      if (match.matches(address)) {
        return false;
      }
    }
    l = accept.size();
    for (int i = 0; i < l; i++) {
      AddressMatcher match = (AddressMatcher) accept.elementAt(i);
      if (match.matches(address)) {
        return true;
      }
    }
    return false;
  }
Ejemplo n.º 3
0
  /**
   * Returns logicalName and jobtracker Id when the local host matches the configuration parameter
   * {@code addressKey}.<logical>.<jobtracker Id>
   *
   * @param conf Configuration
   * @param addressKey configuration key corresponding to the address.
   * @param logicalName
   * @param matcher matching criteria for matching the address
   * @return Array with logical name and jobtracker Id on success. First element in the array is
   *     logical name and second element is jobtracker Id. Null value indicates that the
   *     configuration does not have the the Id.
   * @throws HadoopIllegalArgumentException on error
   */
  static String[] getSuffixIDs(
      final Configuration conf,
      final String addressKey,
      String logicalName,
      final AddressMatcher matcher) {
    String jobTrackerId = null;
    int found = 0;

    Collection<String> jtIds = getJtServiceIds(conf, logicalName);
    for (String jtId : emptyAsSingletonNull(jtIds)) {
      if (LOG.isTraceEnabled()) {
        LOG.trace(
            String.format(
                "addressKey: %s logicalName: %s jtId: %s", addressKey, logicalName, jtId));
      }
      String key = DFSUtil.addKeySuffixes(addressKey, logicalName, jtId);
      String addr = conf.get(key);
      if (addr == null) {
        continue;
      }
      InetSocketAddress s = null;
      try {
        s = NetUtils.createSocketAddr(addr);
      } catch (Exception e) {
        LOG.warn("Exception in creating socket address " + addr, e);
        continue;
      }
      if (!s.isUnresolved() && matcher.match(s)) {
        jobTrackerId = jtId;
        found++;
      }
    }

    // Only one address must match the local address
    if (found == 0) {
      String msg =
          "Configuration has no addresses that match "
              + "local node's address. Please configure the system with "
              + MR_HA_JOBTRACKER_ID_KEY;
      throw new HadoopIllegalArgumentException(msg);
    } else if (found > 1) {
      String msg =
          "Configuration has multiple addresses that match "
              + "local node's address. Please configure the system with "
              + MR_HA_JOBTRACKER_ID_KEY;
      throw new HadoopIllegalArgumentException(msg);
    }
    return new String[] {logicalName, jobTrackerId};
  }