haproxy configuration

haproxy+keepalived high availability for load balancingFirst, the environment5 virtual machines, respectively:1 sets of test machines (192.168.2.83);2 sets of haproxy/keepalived (192.168.2.230/192.168.2.231);2 Web Servers (192.168.2.232/192.168.2.233);Note: The VIP setting is 192.168.2.228;Second, install the configuration Web ServerBecause the installation and

not go out from itself, this ensures that the performance of the Equalizer IO will not receive large traffic impact.5, the application of a wide range, because LVS work in the 4 layer, so it can almost all applications to do load balancing, including HTTP, database, online chat room and so on.The disadvantages of LVS are:1, the software itself does not support regular expression processing, can not do static and dynamic separation , and now many sites in this area have a strong demand, this is

Tags: Linuxkeepalived + haproxy + MySQL build high availability1, the high availability of keepalived is the main preparation, there is a standby2, keepalived + haproxy built high-availability is can be scheduled for two high-availabilityTopology diagram:Keepalived: Responsible for preemption of virtual IP, using VRRP protocolHaproxy: Responsible for the access scheduling, reduce the single point of pressur

; index.html -------------> the is web2 Background monitoring management: When the web1 server is disconnected: When the web1 server is restored: ################################# Some tests have been completed ### ################### Vi. Log Configuration: ######### Add the following statement ######### Vi/etc/syslog. confLocal3. */var/log/haproxy. logLocal0. */var/log/

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

install Haproxy under Redhat First view the system kernel version number and system name Uname-a Linux rh64pfcrm01kf 2.6.32-358.el6.x86_64 #1 SMP Tue, 11:47:41 EST 2013 x86_64 x86_64 x86_64 gnu/linux Haproxy Installation Haproxy official website Download source code installation package http://www.haproxy.org/download/1.7/src/

allow the MySQL account to be accessed by multiple machines. Therefore, execute the following command in "allow: Grant All Privileges On*.*To 'Delimiterity'@'%'IdentifiedBy 'Delimiterity' With Grant Option; Flush rivileges; 2.3 modify the authserver and world server configurations of wow Configuration in authserver. conf Logindatabaseinfo ="Wagner. 0.0.1; 3306; Trinity; Logon" To: Logindatabaseinfo ="172.167.1.239; 3306; Trinity; L

phenomena Haproxy bind 4 Core CPU, 8 core CPU, 16 core CPU, when the pressure is measured, will appear CPU 100% is used situation. Tracing Process 1. Through the Mpstat-p all 1 command to see where the CPU is used, you can see most of the CPU used in the SYS state. 2. View the Haproxy process through Strace-p pid-c the system call takes up the most CPU and sees the CPU used on the Connect system call. 3

database:[Email protected] ~]# mysql> createdata Server1;Of course you can also install MySQL using yum[[email protected] ~]# yum-y install MySQL mysql-devel mysql-serverSecond, installation Haproxy1. Installation[Email protected] ~]# yum-y install Pcre-devel zlib-devel[Email protected] ~]# TAR-ZXVF haproxy-1.4.24.tar.gz-c/usr/src/[Email protected] ~]# cd/usr/src/haproxy-1.4.24/[email protected] ~]# make t

Environment Preparation: Host Name Role IP Address my linux1.contoso.com haproxy server eth0:192.168.100.121 eth1 : 172.16.100.121 Mylinux3.contoso.com Web server 1 eth0:192.168.100.181 Mylinux4.contoso.com Web server 2 eth0:192.168.100.182 First, the preparatory workInstall the HTTP service on MYLINUX3 and mylinux4 and start.Yum-y Install h