Fix OPENDJ-1127: Replication server reconnect thread consumes too much CPU

Matthew Swift

06.05.2013 7f2a4c9b822ba82cc0f3ad2ca84921bc02d3bb22

 opends/src/server/org/opends/server/util/StaticUtils.java

@@ -4544,39 +4544,45 @@
   */
  public static boolean isLocalAddress(InetAddress address)
  {
    if (address.isLoopbackAddress())
    return address.isLoopbackAddress() || getLocalAddresses().contains(address);
  }

  // Time-stamp acts as memory barrier for networkInterfaces.
  private static final long CACHED_LOCAL_ADDRESSES_TIMEOUT_MS = 30 * 1000;
  private static volatile long localAddressesTimeStamp = 0;
  private static Set<InetAddress> localAddresses = new HashSet<InetAddress>();

  private static Set<InetAddress> getLocalAddresses()
  {
    final long currentTimeStamp = System.currentTimeMillis();
    if (localAddressesTimeStamp
        < (currentTimeStamp - CACHED_LOCAL_ADDRESSES_TIMEOUT_MS))
    {
      return true;
    }
    else
    {
      Enumeration<NetworkInterface> i;
      // Refresh the cache.
      try
      {
        i = NetworkInterface.getNetworkInterfaces();
        final Enumeration<NetworkInterface> i = NetworkInterface
            .getNetworkInterfaces();
        final Set<InetAddress> newLocalAddresses = new HashSet<InetAddress>();
        while (i.hasMoreElements())
        {
          NetworkInterface n = i.nextElement();
          Enumeration<InetAddress> j = n.getInetAddresses();
          while (j.hasMoreElements())
          {
            newLocalAddresses.add(j.nextElement());
          }
        }
        localAddresses = newLocalAddresses;
      }
      catch (SocketException e)
      {
        // Unable to determine whether the address is local.
        // Ignore and keep the old set.
        TRACER.debugCaught(DebugLogLevel.WARNING, e);
        return false;
      }

      while (i.hasMoreElements())
      {
        NetworkInterface n = i.nextElement();
        Enumeration<InetAddress> j = n.getInetAddresses();
        while (j.hasMoreElements())
        {
          InetAddress localAddress = j.nextElement();
          if (localAddress.equals(address))
          {
            return true;
          }
        }
      }
      return false;
      localAddressesTimeStamp = currentTimeStamp; // Publishes.
    }
    return localAddresses;
  }

  /**