Keepalived+Haproxy搭建高可用负载均衡
rpm -qi haproxy 或 haproxy -versionName : haproxy Relocations: (not relocatable)
Version : 1.5.4 Vendor: CentOS
Release : 3.el6 Build Date: 2016年05月11日 星期三 03时17分37秒
Install Date: 2016年08月24日 星期三 05时34分08秒 Build Host: worker1.bsys.centos.org
Group : System Environment/Daemons Source RPM: haproxy-1.5.4-3.el6.src.rpm
Size : 2552550 License: GPLv2+
Signature : RSA/SHA1, 2016年05月12日 星期四 18时49分33秒, Key ID 0946fca2c105b9de
Packager : CentOS BuildSystem
URL : http://www.haproxy.org/
Summary : HAProxy is a TCP/HTTP reverse proxy for high availability environments
Description :
HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high
availability environments. Indeed, it can:
- route HTTP requests depending on statically assigned cookies
- spread load among several servers while assuring server persistence
through the use of HTTP cookies
- switch to backup servers in the event a main one fails
- accept connections to special ports dedicated to service monitoring
- stop accepting connections without breaking existing ones
- add, modify, and delete HTTP headers in both directions
- block requests matching particular patterns
- persists clients to the correct application server depending on
application cookies
- report detailed status as HTML pages to authenticated users from a URI
intercepted from the application
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