Recently, a company's business has been growing fast, resulting in heavy pressure on front-end servers. in order to solve this problem as soon as possible, I submitted a request for purchasing servers to the company. soon the company approved the request and the servers were in place. how can we reasonably utilize the resources of newly purchased servers (originally a front-end server)? First, we thought that using nginx for load was a recent rapid development of a company's business, the pressu
1. Preface
The previous section implemented a technical solution based on LVS (DR) + keepalived cluster. However, in terms of usage and maintenance, it was found that it is more difficult to maintain and implement than the haproxy + keepalived technical solution, the haproxy + keepalived cluster for Web applications is sufficient. Therefore, we recommend the haproxy
What is Haproxy?Haproxy is a free and open source software written in C that provides high availability, load balancing, and TCP and HTTP-based application proxies that can run on most major Linux operating systems.This experiment uses three servers to build a Web cluster, haproxy as a dispatch server, two Nginx servers as node servers.Experimental environment
Tags: Linux harpoxyHaproxy 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 thousands of concurrent con
Haproxy is a popular cluster scheduling tool, with many similar cluster scheduling tools, such as LVS and Nginx. In comparison, LVS performance is the best, but the construction of relatively complex, Nginx upstream module support cluster function, but the cluster node health Check function is not strong, performance is not haproxy good. Lab Environment:
Host
Operating System
IP Ad
Haproxy is a popular cluster scheduling tool, with many similar cluster scheduling tools, such as LVS and Nginx. In comparison, LVS performance is the best, but the construction of relatively complex, Nginx upstream module support cluster function, but the cluster node health Check function is not strong, performance is not haproxy good. Lab Environment:
Host
Operating System
IP Ad
can be used as the default gateway of the LAN client, greatly reducing the possibility that the default gateway becomes a single point of failure;
Load Sharing: allow traffic from LAN clients to be shared by multiple router devices;
Multiple VRRP groups: up to 255 VRRP groups can be configured on one vro physical interface;
Multi-IP Address: You can configure multiple IP addresses on the same physical interface based on the Interface alias to allow access to multiple subnets on the same physica
HAProxy is currently a popular cluster scheduling tool, similar cluster scheduling tool, compared with LVS, LVS performance is the best, but the building is relatively complex, Nginx upstream module support cluster function, but the cluster node health Check function is not strong, performance is not HAProxy good.System environment
Host
IP Address
main software
HAProxy is a free, fast, and reliable proxy solution that supports high availability and server load balancer. It is also suitable for proxies for TCP and HTTP-based applications. For some websites with high load, HAProxy is particularly suitable. HAProxy supports tens of thousands of concurrent connections. It is easy to configure and can easily integrate into o
SchemeIn the previous article, we discussed the theoretical knowledge of load balancing, and this article I intend to talk about practical methods and problems encountered in practiceScenario: Haproxy HTTP Layer Load BalancingInstall a Haproxy service, two Web servicesHaproxy:192.168.1.227:80Web1 Http://192.168.1.226:8081/loginWEB2 Http://192.168.1.246:8888/loginThe Web service is prepared for itself, and t
Haproxy is a popular cluster scheduling tool, with many similar cluster scheduling tools, such as LVS and Nginx. In comparison, LVS performance is the best, but the construction of relatively complex, Nginx upstream module support cluster function, but the cluster node health Check function is not strong, performance is not haproxy good. Lab Environment:
Host
Operating System
IP Ad
Haproxy is currently a popular cluster scheduling tool. Haproxy comparison with LVs and NginxLVS Performance is the best, but the construction is relatively complexNginx upstream module support cluster function, but the cluster node health Check function is not strong, performance is not Haproxy GoodHTTP requestThe protocol used to access a Web site through a URL
I system RedHat6.4, haproxy version is haproxy-1.3.15.10.tar.gzInstallationinstallation PCRE– [Email protected]~]# yum-y Install pcre pcre-devel Unzip and enter the Haproxy directory– [Email protected]~]# tar xvzf haproxy-1.4.24.tar.gz– [[Email protected]~]# CD haproxy
1.HAProxy Introduction
Haproxy is an open-source, high-performance, load-balancing software based on TCP (four-tier), HTTP (seven-tier) applications. That haproxy as a professional load balancer software, it has the following advantages:
Very good reliability and stability, comparable to hardware-level F5 load balancing devices
. Up to 40000-50000 concurrent conn
This article provides a brief introduction to Web load balancing using Haproxy, including weight-based polling, configuring HTTPS for Haproxy, configuring HTTP redirection to HTTPS, and configuring Haproxy using stand-alone logs.First, the test environmentHAProxy:Host Name: Rh7-haproxyIP address: 192.168.10. -Operating system: Red Hat Enterprise Linux Server Rel
CentOS 6.4 installation configuration HAProxy-1.4.24
HAProxy is a free, fast, and reliable proxy solution that supports high availability and Server Load balancer. It is also suitable for proxies for TCP and HTTP-based applications. For some websites with high load, HAProxy is particularly suitable. HAProxy supports te
HAProxy agent MySQL Cluster Installation
Agent installation Interface1. Check the operating system version and kernel version.Lsb_release Operating System**********************************LSB Version: core-3.1-amd64: core-3.1-ia32: core-3.1-noarch: graphics-3.1-amd64: graphics-3.1-ia32: graphics-3.1-noarch:Distributor ID: RedHatEnterpriseServerDescription: Red Hat Enterprise Linux Server release 5.4 (Tikanga)Release: 5.4Codename: Tikanga**************
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