return code 503

503 is an HTTP status code, is a return state of the server error, due to temporary server maintenance or overload, the server is currently unable to process the request. This condition is temporary and will be restored after a period of time. So

If the program has an exception, the thinkphp default is to throw 404 headers.ThinkPHP3.2.3 Related code:#/thinkphp/library/think/think.class.php /** * Custom exception handling * @access public * @param mixed $e Exception Object *

Reprint Please specify source: http://blog.csdn.net/cywosp/article/details/40781569Swift before the version number 2.1.0 assumes that the configuration file for each service opens below configuration, and the system is not configured correctly there

The reasons for Apache status 503 are as follows:1. If the CPU load is too high and the server cannot respond, 503 is returned.2. The number of system connections exceeds the upper limit of MaxVhostClients. 503 is returned.3. The number of

For smtp mail, who can help check the 503 Error: needEHLOandAUTHfirstResolvingSMTPserverdomain & quot; smtp.qq.com & quot ;... connectingtohostaddress & quot; 119.147.74.45 & quot; port25... connecte, who can help with smtp mail? 503 Error: need

For smtp mail, who can help me see 503 Error: needEHLOandAUTHfirstResolvingSMTPserverdomain & quot; smtp.qq.com & quot;... Connectingtohost who can help me see 503 Error: need EHLO and AUTH first Resolving SMTP server domain "smtp.qq.com

HTTP status: 202, 301, 304, 404, 503 reprinted Baidu... 301, 404, 200, 304, and other HTTP status, what does it mean? In the practical application of website construction, many small mistakes may occur, just as MySQL was not optimized at the

In the previous article, "High concurrency system limited-current stunt", the current limit algorithm, application-level current limit, and distributed current limit are introduced in this paper. The Access layer current limit implementation is

First, let's talk about how to configure varnish.The varnish startup requires the configuration file (*. VCL), and some other startup parameters (the specific parameters are omitted here, man will see everything ). My installation is

Reprint please indicate source: http://blog.csdn.net/cywosp/article/details/40781569Swift before version 2.1.0 if the configuration file for each service has the following configuration open and the system is not configured correctly there will be