statsd protocol

From: https://www.cnblogs.com/Jadie/p/6877392.htmlNo status meaning:　stateless means that the protocol has no memory function for transactional processing . A lack of state means that the preceding information must be re-transmitted if the subsequent processing requires the previous information, which may result in an increase in the amount of data sent per connection. On the other hand, when the server does not need the previous information, the resp

7.1 Introduction Internet Protocol (PROTOCOL,IP) is the transport mechanism used by the TCP/IP protocol cluster at the network layer. IP is an unreliable non-connected datagram Protocol-the best effort to deliver (best-effort delivery) services.7.2 Data Report The grouping of network layers is called datagrams (datagr

Http protocol learning summary, http Protocol Summary This article is a summary of the basic knowledge of Http over the past few days. The content includes the principles of the Http protocol, Http request information, Http response information, and Http protocol status code. 1. Basic principles of Http: A client sends

A small application using the timer, singleton and Protocol (2), Timer Protocol In the previous article, I wrote a simple timer, which can also run properly. But now there is a problem, like the Timer Program on our mobile phone. Even when switching to the alarm clock or world time, the timer must still be running later. We can't do that just now. Because we have exited the timer interface when converting o

Hyper Text documents contain hyperlinks that point to other resources. Hypertext document is the foundation of World Wide Web (www. The HTTP protocol solves the problem of file transmission. HTTP is an application layer protocol, mainly based on TCP protocol (occasionally UDP can be used as the underlying layer ). It is popular with the development of the World W

Basic concepts of Protocol (PROTOCOL)The Declaration of a Protocol looks more like an interface to a class in Java, but unlike an interface: a protocol has no parent class and cannot define an instance variable.A protocol is a special programming structure used to declare a

Win7 flagship system How do I reinstall the TCPIP protocol recovery network? Where's the Win7internet protocol? After cleaning up the files and software on your computer, you can't connect to the network properly, which is mostly caused by the destruction of the TCP/IP protocol during computer operation. We need to reinstall the TCP/IP

Introduction: Before 1990, the hierarchical model dominated by data communication and networking literature was the Open Systems Interconnection (open system Interconnection,osi) model, and now the TCP/IP protocol family became the dominant commercial architecture. An OSI seven-layer model 1.1 Physical Layer The mechanical and electrical specifications that relate to the interface and the transmission media are responsible for moving bits-by- bit from

about iOS object-c categories-static methods for category categories and private variables, protocol protocol2014-02-18 19:57 315 People read Comments (0) favorite reports 1.category, the method of overwriting the original class, even if does not refer to the category header file, can also overwrite, Respondstoselector: Method can also respond.2.category, there can be no private variables, but there can be @property declaration, the property declar

In the learning hyperlink, the HTML click on the QQ icon will automatically start their own local QQ client, the method is to use the Hyperlink protocolSome common protocols are as follows:File resources are files on the local computer. Format file:///FTP accesses resources through FTP. Format ftp://Gopher accesses the resource through the Gopher protocol.HTTP accesses the resource over HTTP. Format/HTTP/HTTPS accesses the resource through secure HTTPS. Format https://The mailto resource is an e

The previous article has introduced the composition of the Protocol. A protocol generally has the following features: protocol header + Length + Data + verification. The text format can intuitively define that carriage return and line feed are the end of the Protocol, therefore, we can omit the Data Length and add the

The previous article has introduced the composition of the Protocol, a protocol, generally has: protocol header + length + data + checksum, text format can be intuitively defined carriage return line is the end of the protocol, so we can omit the length of the data, increase the end of the

Bluetooth protocol (2) specifications of the Bluetooth protocolChapter 2 Bluetooth protocol specifications (RF, baseband Link Control, and link management) The Bluetooth protocol is a rule for information exchange between bluetooth devices. Like the Open Systems Interconnection (OSI) model, the protocol system of Blue

The UDP protocol is also an unreliable transport protocol compared to TCP. So what is the occasion to use the UDP protocol:1. Efficient and reliable environment2. Because the UDP overhead is small (1) does not need three handshake 2) the transmission process does not need to confirm 3), it is appropriate to communicate in a light-weight environment, such as TFTP,

1. IntroductionIP is the most central protocol in the family of TCP/IP protocols. All TCP, UDP, ICMP, and IGMP data are transmitted in an IP datagram format. IP provides unreliable, non-connected datagram delivery services.(1) unreliableIt does not guarantee that IP datagrams will successfully reach their destination. IP only provides the best transport service. In the event of an error, such as a router temporarily running out of buffers, IP has a si

ObjectiveThe MQTT protocol focuses on network and resource-constrained environments, and it is normal to not consider the Web environment at the beginning of the establishment. Nevertheless, it does not mean that it is not suitable for the HTML5 environment.HTML5 WebSocket is a two-channel communication based on TCP, similar to TCP communication, and is suitable for web browser environments. Although the MQTT gene plane chooses TCP as the communicatio

First, prefaceWith the broadcast technology hot, all the Live app, the early live app's various request protocol parameter information did not do any encryption measures, but slowly someone began to use the back door began to brush powder attention tool, you can make a new small Hua Dan minute into the net red. So somewhere in this problem, the live app starts encrypting the network request parameters. So that is the focus of this article analysis. Th

　　This article is mainly for the access to SVN two protocols to illustrate one is the SVN itself service protocol, one is to run HTTP through Apache Access SVN Protocol SVN protocol access format similar to the followingSvn://192.168.1.34/repos/cottonThe SVN protocol has a certain disadvantage is that only through the

This article illustrates how Android programming uses HTTP protocol and TCP protocol to upload files. Share to everyone for your reference, specific as follows: There are two ways to upload files to Android, the first is based on the HTTP protocol httpurlconnection, and the second is the socket based on the TCP protocol