beacon\MysqlException: SQLSTATE[HY000] [2002] php_network_getaddresses: getaddrinfo failed: Name or service not known
    #0 /home/www/dlut.px/vendor/wj008/beacon/core/DB.php(173): beacon\DB::engine()
    #1 /home/www/dlut.px/app/libs/Setting.php(23): beacon\DB::getRow('select * from @...')
    #2 /home/www/dlut.px/app/libs/Redis.php(90): app\libs\Setting::app\libs\{closure}()
    #3 /home/www/dlut.px/app/libs/Setting.php(24): app\libs\Redis::cache('cache.dlutsetti...', Object(Closure))
    #4 /home/www/dlut.px/app/master/user/controller/Token.php(55): app\libs\Setting::get('switch')
    #5 /home/www/dlut.px/app/master/user/controller/Base.php(20): app\master\user\controller\Token->setting('switch')
    #6 /home/www/dlut.px/vendor/wj008/beacon/core/Route.php(633): app\master\user\controller\Base->initialize()
    #7 /home/www/dlut.px/vendor/wj008/beacon/core/Route.php(748): beacon\Route::runMethod('app\\master\\user...', Object(ReflectionMethod))
    #8 /home/www/dlut.px/www/index.php(72): beacon\Route::run()
    #9 {main}
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