protected function getClient($namespace) {
		$path = sprintf('%s/configs/%s/%s/%s?releaseKey=%s',
			$this->conf['path'],
			$this->conf['appid'],
			$this->conf['cluster'],
			$this->conf['namespace'],
			$this->last_key);
		if ($this->conf['with_ip']) {
			$cidr = Container::getInstance()->get(CIDRmatch::class);
			foreach (swoole_get_local_ip() as $v) {
				if ($cidr->match($v, $this->conf['with_ip'])) {
					$path .= '&ip=' . $v;
					break;
				}
			}
		}
		$cli = new Client($this->conf['host'], $this->conf['port']);
		$cli->set([
			'timeout' => 1
		]);
		$cli->setDefer();
		$cli->get($path);
		return $cli;
	}