1. Polling (default)
Each request is assigned to a different back-end server in chronological order, and can be automatically rejected if the backend server is down.
## The default server#upstream192.168.93.128{ server192.168.1.8:80 weight=2; server192.168.93.128:8080 weight=1;}server { listen80; server_name192.168.93.128; location / { #设置主机头和客户端真实地址,以便服务器获取客户端真实IPproxy_set_header$host; proxy_set_header$remote_addr; proxy_set_header$proxy_add_x_forwar
Tags: nginx--with-stream diebecause sometimes there is a demand, need to open the Cloud database network address, but there are individual cloud operators do not provide this operation, after a few brainstorming, think of Nginx on another--with-stream module can map the intranet IP port to the external network address!
First step: first introduce the relevant technology usedNote: The Jwplayer plug-in used in the project does not support the RTSP protocol, so use the following techniques to turn the art
FFmpeg is an open-source computer program that can be used to record, convert digital audio, video, and turn it into a stream. Here I only use its video format conversion function, the RTSP protocol to the stream i
Preface
Nginx starting from 1.9.0, a new stream module is added to implement four-layer protocol forwarding, proxy or load balancing. This is exactly the pace of haproxy share, given Nginx's success in 7-tier load balancing and Web service, and nginx good framework, the stream module has a bright future.
Nginx tcp stream monitoring for zabbix application SeriesNginx tcp stream monitoring for zabbix application Series
1. Implementation ideas
Native support
Obtain by analyzing logs
Obtain from Analysis Network
2. native support and Log AnalysisNginx's support for monitoring
Nginx provides the status module. Curren
: This article mainly introduces the nginx Reverse proxy TCP to fetch the RTMP stream. if you are interested in the PHP Tutorial, refer to it. Nginx Reverse proxy TCP, get RTMP stream
I. descriptionNginx only supports HTTP reverse proxy by default. to support TCP reverse proxy, you must add the tcp proxy module nginx_
About Nginx Streaming Server deployment of the article has been a lot of, today I talk about how to push the stream to the server while the flow code to save the MP4 file, the main use of the ffmpeg.
1, the first need to explain is that you can not use the EXEC command. He will automatically terminate the calling external program at the end of the client push stream
I. Io and stream
Data input and output (I/O for input/output)The input and output of standard input devices and standard output devices are referred to as standard I/OThe input and output of files stored on an external disk are referred to as files I/O.The input and output of the specified string bucket in the memory are referred to as string I/O.
The process of data input and output can be visually viewed as a stream.The operation for retrieving dat
1: Login Register IO version case (master)Ask, write it over again.Cn.itcast.pojo UserCn.itcast.dao UserdaoCn.itcast.dao.impl UserDaoImp1 (realize I don't care)Cn.itcast.game GuessnumberCn.itcast.test Usertest2: Data manipulation flow (flow of manipulating basic type data) (understanding)(1) Basic types of data can be manipulated(2) Stream object nameDataInputStreamDataOutputStream3: Memory operation flow (understanding)(1) Sometimes we do not need to
java.io uses design patterns such as adapter pattern decoration mode to solve the socket and input-output problems of character streams.
A byte stream can only be processed at a time, in order to more easily manipulate the data, it adds a socket flow.
Problem Introduction:
Why is the buffer stream more efficient than ordinary file-byte throttling?
An operation without buffering, which writes a byte ever
The content of this article:
What is a stream
BYTE stream
Character Stream
Starting Date: 2018-07-24
what is a stream
Flow is an abstract concept, is an abstraction of input, the input stream can be regarded as an input channel, the outpu
Elementary stream
In the MPEG-2, bit streams that contain encoded images, sounds, or data are called the basic stream ES (elementary stream ), it only contains one type of data (audio, video, or subtitle). What we call "audio", "video", or "bit stream" is elementary stream,
Java input/output streamPre-knowledge preparation1. Basic Java SyntaxBasic principle:While the program is running, it may be necessary to read the required data from an external storage medium or other program, which requires the use of an input stream object. The input stream points to the source called it, and the program reads the source data from the input stream
java.io uses design patterns such as adapter mode decoration mode to solve the problem of socket and input and output of character streams.The byte stream can only process one bytes at a time, and in order to manipulate data more conveniently, it joins the socket stream.Problem Introduction: Why is buffered stream more efficient than normal file-byte throttling?Without buffering, a byte is written for each
Java I/O article 2 (buffer stream random stream array Stream Data Stream), java Article 2
1: Buffer stream BufferedReader BufferedWriter
Strong read/write capability, able to read and write a single row of data separately, can reduce the number of visits to the hard disk.
1/
File stream and data stream, file stream data stream
1. File Type
1.1,In Qt, file types are dividedTwo categories
1.1.1,Text file:The file content is a readable text character
1.1.2,Data file:The file content is binary data directly.
1.2,QFileDirectly supporting text files and data filesRead/write
. Cpp File
# Incl
, NGINX Plus receives TCP requests from the client, and then creates a TCP request to initiate an access to the upstream server.
Stream {upstream my_upstream {server server1.example.com: 1234; server server2.example.com: 2345;} server {listen 1123 [udp]; proxy_pass my_upstream; # note that http: // is not found here }}
TCP requests are supported in NGINX Plus R5.
Document directory
Main methods and constants in the file class
Procedure
Byte output stream: outputstream
Byte input stream: inputstream
Character output stream: writer
Character input stream: Reader
File class
In the entire Io package, the only class that indicates the file itself is the file class. You can
The IP datagram has a header and data two parts, the first part of the header is a fixed length of 20 bytes, is all the IP datagram must have. The header includes: total length, logo, MF, DF, offset.
The digital signal actually transmits the data stream, the general data flow includes the following three kinds:
ES streams: Also called basic streams, which contain continuous streams of video, audio, or data.
PES st
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