@Override
    public void closeConnection(Url url) {
        ensureStarted();
        if (isReconnectSwitchOn() && reconnectManager != null) {
            reconnectManager.disableReconnect(url);
        }
        this.connectionManager.remove(url.getUniqueKey());
    }
Close all connections of a address

@param addr address
src/main/java/com/alipay/remoting/rpc/RpcClient.java