@Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append("{MemcachedConnection to");
    for (MemcachedNode qa : locator.getAll()) {
      sb.append(" ").append(qa.getSocketAddress());
    }
    sb.append("}");
    return sb.toString();
  }
Shut down all connections and do not accept further incoming ops.
src/main/java/net/spy/memcached/MemcachedConnection.java