Shulou(Shulou.com)06/02 Report--

This lab implements a memcached+magent+keepalived high availability cluster:

Magent: proxy memcached to achieve load balancing keepalived:magent Master / Slave HA High availability memcached: cache object

Experimental requirements:

Master Server: 192.168.177.140 (magent+memcached+libevent+keepalived) Slave Server: 192.168.177.135 (memcached+libevent+keepalived) client: 192.168.177.132 (telnet package) Mount (Master Slave) # tar zxvf libevent-2.1.8-stable.tar.gz-C / opt# tar zxvf memcached-1.5.6.tar.gz-C / opt# mkdir / opt/magent = = Note = Slave Server do not do # tar zxvf magent-0.5.tar.gz-C / opt/magent/# yum install gcc gcc-c++ make-Ymurmuri # cd / opt/libevent-2.1.8-stable/. / configure-- prefix=/usr # make & & make install# cd memcached-1.5.6/. / configure-- with-libevent=/usr # make & & make instal--- only main: # cd / opt/magent/# vim ketama.h ifndef SSIZE_MAX define SSIZE_MAX 3276 copyright vim Makefile LIBS =-levent-lm make install openssh-clients master server: # yum install openssh-clients-y # cp magent / usr/bin/ / easy to use # scp magent root@192.168.177.135:/usr/bin / / copy magent to slave server # systemctl stop firewalld.service / / turn off firewall # setenforce 0 / / enhanced security features from server: # yum install openssh-clients# systemctl stop firewalld.service# setenforce slave Cd / usr/bin# ls will find that magent becomes an executable file installation keepalive master server: # yum install keepalived-y # vi / etc/keepalived/keepalived.conf router_id MAGENT_HA interface ens33 virtual_router_id 51 priority 100 virtual_ipaddress {192.168.177.188 / set virtual IP} vrrp_script magent {script "/ opt/shell/magent.sh" interval 2} track_script {magent} # scp / etc/keepalived/keepalived.conf root@192.168.177.135:/etc/keepalived/keepalived.conf / / copy keepalived.conf to slave server: # vim / etc/keepalived/keepalived.conf modify: state: BACKUP interface ens33 virtual_router_id 52 priority 90 edit script file master / slave: # mkdir / opt/shell# cd / opt/shell# vi magent.sh# ! / bin/bashK= `ps-ef | grep keepalived | grep-v grep | wc-l`if [$K-gt 0] Then magent-u root-n 51200-l 192.168.177.188-p 12000-s 192.168.177.140Viso 11211-b 192.168.177.135:11211elsepkill-9 magentfi# chmod + x magent.sh / / add execution permissions for the script # systemctl start keepalived.service / / enable service startup memcached service # memcached-m 512k-u root-d-l 192.168.177.140-p 11211 / / # memcached-m 512k-u root on the main server -d-l 192.168.177.135-p 11211 / / ip addr / / View the virtual address from the server

Install telnet# yum install telnet-y on the client

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