SwooleDistributed 3 MySQL连接池：数据库重启后连接失效怎么办？

if (!$client->connected) {    $set = $this->config['mysql'][$this->active];    $result = $client->connect($set);    if (!$result) {        $this->pushToPool($client);        $errcode = $client->errno ?? '';        $mysqlCoroutine->getResult(new SwooleException(sprintf("err:%s,code:%s", $client->connect_error, $errcode)));  //在这里报的错    }} else {    // 客户端已连接，无需重连    // ...}