to other IP or other accesses, the request will be dispatched to the two back-end real servers specified by server_www.Testing the failover capabilities of the HaproxyThis assumes that the httpd service of a back-end server 192.168.88.82 The SERVER_WWW group is stopped, and when the site is accessed through a www.tb.com or tb.com domain, the failed node will not be accessed because when the httpd service is stopped, Haproxy through HttpchkThe method
HAProxy Usage Details
HAProxy details
HAProxy is a free, fast, and reliable solution for providing high availability, load balancing, and proxy services for TCP and HTTP-based applications, it is especially suitable for websites with high load and require persistent connections or layer-7 processing mechanisms. HAProxy
Haproxy is a powerful, flexible and easy to use reverse proxy software, provides a high-availability, load-balanced, back-end server Agent functions, it is in the 7-tier load balancing function is very powerful (support cookie track, header rewrite, etc.), support dual-machine hot standby, support virtual host , has a very good server health check function, when its agent's back-end server failure, Haproxy
HAProxy introduction, haproxySimple Description
HAProxy provides high availability, Server Load balancer, and TCP and HTTP application-based proxy. It supports Virtual Hosts and is a free, fast, and reliable solution. HAProxy is especially suitable for websites with extremely high loads, which usually require session persistence or layer-7 processing.
Nginx/lvs/haproxy Load Balancer software pros and consHttp://www.ha97.com/5646.htmlPs: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 asc
1. Hide back-end server versionsIn our daily work we use haproxy as a load balancer, because the backend application server is more cumbersome to change, so it is decided to implement it in the load balancer.Only need to frondend or listen or backend, addRspidel ^server:.* rspidel ^x-forwarded-for:.* rspidel ^x-powered-by:.* rspidel ^via:.* rspide L ^x-aspnet-version:*The above use can refer to Rspidel.In addition, if you need to confuse some people t
2 Maxconn Listen Statspage # define the interface of the monitoring management interface bind *:8888 # define the access page Port stats Enable # Enables the Admin interface stats Hide-versi On # hidden version Stats uri/admin?stats # access path stats auth Admin:centos # Access requires authentication login Stats Admin If TRUE # if login The online server can be managed successfully To access the Administration page:Summarize:The
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 PV
Nginx. Now online Lvs/nginx too much information, so we are naturally high concern, in fact, Haproxy is also very good, so the site has load balance needs of friends, may wish to consider the trial under the Haproxy. The dual-machine high availability proposal recommends that you adopt haproxy+keepalived.
LVS is now almost synonymous with load balancing, its ro
staticUrl_param: Dispatched according to the value of the specified parameter in the URL; hash the value and divide by the total weightHDR ( : Dispatched according to the header specified in the request packet (e.g. use_agent, referer, hostname); hashes the value of the specified headerIn the hash algorithm map-based is the modulus method, the static consistent is the consistent hash method, the dynamicHow to enable the Haproxy Status
haproxy also run well, stability can be comparable with LVS;Second, according to official documents, HAProxy can run full 10gbps-new benchmark of HAProxy at ten Gbps using myricom ' s 10GbE NICs (myri-10g pci-express), this as a software-level load Balanced, is also more amazing;Third, Haproxy can be used as MySQL, ma
identical account to respond to the access requirements, and the primary master replication account needs to be changed to the same, in order to facilitate the direct granting of the user full permissions. Grammar view my MySQL related blog: http://www.cnblogs.com/cuijiale/p/8034319.html, which all mentioned. Ok the pit of the platoon we've been lying down, here I start the service (in order for Haproxy to monitor two database information, you need t
First, HAProxy
1.haproxy Introduction
HAProxy is a free, fast, and reliable solution that provides high availability, load balancing, and proxy software based on TCP (layer fourth) and HTTP (layer seventh) applications that support virtual hosting.
Haproxy is a free and open source software written in C lan
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 PV
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