Laravel 队列常驻的时候，是否会发送数据库连接超时

当我们在队列的业务中调用 DB 的时候其实查询时候会有一次重试机制。判断源码逻辑如下：

trait DetectsLostConnections
{
    /**
     * Determine if the given exception was caused by a lost connection.
     *
     * @param  \Exception  $e
     * @return bool
     */
    protected function causedByLostConnection(Exception $e)
    {
        $message = $e->getMessage();

        return Str::contains($message, [
            'server has gone away',
            'no connection to the server',
            'Lost connection',
            'is dead or not enabled',
            'Error while sending',
            'decryption failed or bad record mac',
            'server closed the connection unexpectedly',
            'SSL connection has been closed unexpectedly',
            'Error writing data to the connection',
            'Resource deadlock avoided',
            'Transaction() on null',
            'child connection forced to terminate due to client_idle_limit',
            'query_wait_timeout',
            'reset by peer',
            'Physical connection is not usable',
            'TCP Provider: Error code 0x68',
            'Name or service not known',
            'ORA-03114',
            'Packets out of order. Expected',
        ]);
    }
}