HAProxy provides high availability, load balancing, and proxies based on TCP and HTTP applications, supporting virtual hosting, which is a free, fast, and reliable solution.Haproxy provides high availability, load balancing, and proxies based on TCP and HTTP applications, supporting virtual hosting, which is a free, fast, and reliable solution. Haproxy is especially useful for Web sites that are heavily loa
Recent Friends Liu Xin website successfully online and operation, PV reached billion/day access, the most front-end use of haproxy+keepalived dual-machine load balancer/reverse agent, the entire site is very stable; it made me more determined haproxy+ Keepalived as the web's most front-end load equalizer Web site architecture design, here I also have a point to tell you: Many friends worry about the softwar
First download Haproxy package: Source Installation
wget http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.13.tar.gz
wget http://haproxy.1wt.eu/download/1.4/src/haproxy-1.4.24.tar.gz
Installation: Tar zxvf haproxy-1.4.13.tar.gz
M
TCP Sticky packets and subcontractingWhat is a TCP sticky packetReference: http://zgame.blog.51cto.com/6144241/1225333
Extended TCP long connections and short connections
Reference: http://www.cnblogs.com/beifei/archive/2011/06/26/2090611.html
TCP Short Connection
We simulate the case of a TCP short connection, the client initiates a connection request to the server, the server receives
Configure Haproxy log support (rsyslog log Support)
System CentOS 6.x
Configure Haproxy log support
Cp/etc/rsyslog. conf/etc/rsyslog. conf 'date + % F'Ll/etc/rsyslog. con *Cat>/etc/rsyslog. conf # HaproxyLocal0. */application/haproxy/logs/haproxy. log# EndEOF
# Local0 should be specified in the
High-availability cluster for HAproxy Based on Keepalived
1. Introduction to Keepalived
Keepalived is used to detect the status of a web server. If a web server crashes or fails to work, Keepalived will detect it and remove the faulty web server from the system, when the web server is working normally, Keepalived automatically adds the web server to the server group. All these tasks are completed automatically without manual interference. All you need
A brief introduction to the principle1.HAProxyHaproxy provides high availability, load balancing, and proxies based on TCP and HTTP applications, supporting virtual hosting, which is a free, fast, and reliable solution. Haproxy is especially useful for Web sites that are heavily loaded, and often require session-hold or seven-tier processing. Haproxy runs on today's hardware and can support tens of thousand
A brief introduction to the principle1.HAProxyHaproxy provides high availability, load balancing, and proxies based on TCP and HTTP applications, supporting virtual hosting, which is a free, fast, and reliable solution. Haproxy is especially useful for Web sites that are heavily loaded, and often require session-hold or seven-tier processing. Haproxy runs on today's hardware and can support tens of thousand
General Planning:
Host
Ip
Describe
Vip
192.168.0.222
Provide high-availability IP externally
Haproxy+keepalived (Node1)
192.168.0.111
Haproxy for the back-end two Web services to do static and dynamic separation, keepalived for haproxy to do high availability.
Haproxy provides high availability, load balancing, and proxies based on TCP and HTTP applications, supporting virtual hosting, which is a free, fast, and reliable solution. Haproxy is especially useful for Web sites that are heavily loaded, and often require session-hold or seven-tier processing. The haproxy runs on the current hardware and can support tens of t
Tags: mysql cluster haproxyFirst, prepare1. Prepare the serverBuild a MySQL cluster system with 2 nodes and build haproxy+mysql cluster (MySQL cluster) system using 6 servers
node Configuration Instructions
Node
The corresponding IP and port
Haproxy Load Balancer (1) CentOS 6.3
1.1.1.11
Management node (1) CentOS 6.3
1.1.1.30
SQ
1, install dependent libraries and packages, or compile will errorApt-get install gcc libpcre3 libpcre3-dev OpenSSL libssl-dev make2, download nginx-1.8.1.tar.gz and nginx-sticky-module-1.1.tar.gz in the attachmentNote:nginx-sticky-module-1.1 module in the attachment, after downloading the attachment, rename theMV Aa.txt nginx-sticky-module-1.1.tar.gzMV Nginx-1.8
First, what is sticky bagNote: Only TCP has a sticky packet phenomenon, UDP will never stick packetsSticky bags do not necessarily occurIf this happens: 1. may have been glued on the client2. The client is not sticky and may be stuck on the service sideFirst you need to master the principle of a Socket transceiver messageThe data that the application sees is a wh
In the MySQL world, Haproxy is often used as a software load balancer. Peter Boros explains how to use the Percona xtradb cluster (PXC) to set it up in a previous message. So it only sends the query to the applicable node. The same method can be used for general master-slave settings to read the load and spread across multiple nodes. However, with MySQL replication, another factor starts to work: replication latency. In this case, the mentioned Percon
I. background
The company recently used the exchange mail system to build a highly available mail system architecture. Front-End Server Load balancer uses Microsoft's NLB to achieve CAS load balancing. However, some problems have also been found in the solution implementation project. using NLB to generate a large number of broadcast reports in the network causes serious packet loss problems. Then we use haproxy to replace NLB to achieve CAS load ba
Load Balancing cluster HAProxy Basic article First, haporxy Introduction HAProxy is an agent software that provides high availability, load balancing, and TCP(layer Fourth) and HTTP(seventh tier) applications,HAProxy is completely free, with HAProxy a proxy solution based on TCP and HTTP applications can be p
Install Nginx (as HTTP server) and Haproxy (reverse proxy) in the test environment, and configure Haproxy log output to/var/log/haproxy.log, take note.It should be explained that this is only a basic installation, configuration method, and does not involve specific usage in a production environment.First, install Nginx1. Preparation environmentYum install-y gcc #一般都有yum install-y gcc-c++ #非必须yum install-y p
Ps:nginx/lvs/haproxy is currently the most widely used three load balancing software, I have been implemented in a number of projects, reference to some information, combined with some of their own experience, summed up.
The general use of load balancing is to use different technologies depending on the stage of the site's ascent. Specific application needs to be specific analysis, if it is small and medium-sized Web applications, such as the daily P
Working with scenes
Using Haproxy to carry out load balancing, for data transmission under socket, non-HTTP access load balancing.Assuming that the scenario is as follows, Terminal 1 and Terminal 2 are responsible for collecting data and then want to forward the data to the server for analysis through the load balancer.Hope:1, when two terminals are working properly, but only one server (server 1), will send all the data to this server.2, when two te
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.