@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    super.fromData(in, context);
    processorId = in.readInt();
  }
Sends a ping message. The pre-GFXD_101 recipients are filtered out and it is assumed that they
are pingable.

@return true if all the recipients are pingable
geode-core/src/main/java/org/apache/geode/internal/cache/ServerPingMessage.java