how to keep alive

In PHP development work is very much used to timeout processing to the occasion, I say a few scenarios: get the data asynchronously if a backend data source gets unsuccessful, it skips and does not affect the entire page presentation in order to

The first half of this article concludes with a serious error, see the last 2015-1-20 Update section.Recently has been addressing a problem on the line, performance is: Tomcat will have a peak every morning, the peak of concurrency reached

Analyzes how the nginx resolves and stores HTTP requests. The ability to identify and handle illegal or even malicious requests. It can be found that Nginx uses state machine to parse HTTP protocol, it has some fault-tolerant ability, but it is not

Principles of keepalive Both http1.0 and http1.1 support keepalive. Http1.0 requires "connection: keep-alive" header to be added to the request, whereas http1.1 supports this header by default. The data interaction process supported by http1.0

How can we understand the "no connection, no status" Features of HTTP?   It is an object-oriented protocol at the application layer. HTTP has five main features: 1. Support for customer/Server models; 2. simple and fast; 3. Flexible; 4. No

Returned directory Returns the response message received from the server to the client.  Okay, at this point, all the response packets are received from the server, so the next step is the final outcome: Package the response packets received

Sockets let's send raw streams of bytes back and forth between both computers, giving you fairly low-level access to the TCP/IP protocol. See the File I/O amanuensis for sample code to do. In TCP/IP each computer has a name, such as

Turn fromHttp://zhanjindong.comRecently has been addressing a problem on the line, performance is: Tomcat will have a peak every morning, the peak of concurrency reached more than 3000, the final result is the Tomcat thread pool full, log

The HTTP protocol (hypertext Transfer Protocol, Hypertext Transfer Protocol) is the application-layer communication protocol used to transfer hypertext (HTML) from the Web server to the client browser. Learn the HTML before you know the HTTP

Php session Principle Session is a way to maintain user session data on the server side. The corresponding cookie is to maintain user data on the client side. HTTP is a stateless protocol. After the server responds, it loses its connection with the

Download from: http://kb.cnblogs.com/page/73901/processWhen the resource is accessed for the first time, the HTTP header is as follows(Request-line) Get/a.html http/1.1Host127.0.0.1User-agent mozilla/5.0(X11;U Linux i686; ZH-CN; rv:1.9.0.15) gecko/20

1. all people who have done Socket programming in the HTTP request type know that when we design a communication protocol, the "message header Message Body" segmentation method is very common, the message header tells the other party what the

Curl simulates password retrieval (Huaxia insurance) to directly retrieve the password page www. ihxlife. comforget... if you enter the mobile phone number 15677748704 (test) to obtain the verification code, the system will prompt that the

Session is a global variable of the server. Why can it switch between different pages without losing data or saving data on the client? let's take a look at the working principle of session and Session is a global variable of the server. Why can it

In our previous blog post, we used direct exchange instead of fanout exchange, and this time we looked at topic exchange.First, Topic Exchange introductionTopic Exchange and direct Exchange are similar and are matched by routing key and binding key,

The development technology of today's web programs is truly a battle, ASP. NET, PHP, JSP, Perl, Ajax, and so on. Regardless of the future development of web technology, it is very important to understand the basic protocols for communication between

The development technology of today's web programs is truly a battle, ASP. NET, PHP, JSP, Perl, Ajax, and so on. Regardless of the future development of web technology, it is very important to understand the basic protocols for communication between

Today, I received a temporary task to troubleshoot a website's strange problem. This is the case. The website has a large access volume. I went to a module and sent an HTTP request to the Page Server, after reading the data provided by another Java

1. WebSocket Concept WebSocket is a network technology provided by HTML5 for full-duplex communication between the Client and the Server. Duplex refers to two communication devices that allow two-way data transmission. After the Client and Server

The development technology of today's web programs is truly a battle, ASP. NET, PHP, JSP, Perl, AJAX, and so on. Regardless of the future development of Web technology, it is very important to understand the basic protocols for communication between