（八）企业部分之nginx+tomcat+memcached负载均衡集群搭建

【server1】
vim /usr/local/lnmp/tomcat/conf/context.xml

<Context>
......
<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager"
memcachedNodes="n1:172.25.45.1:11211,n2:172.25.45.2:11211"
failoverNodes="n1"
requestUriIgnorePattern=".*\.(ico|png|gif|jpg|css|js)$"
transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"
/>
</Context>

【server2】
vim /usr/local/tomcat/conf/context.xml
将failoverNodes的值改为n2










【server1】
cd /usr/local/lnmp/tomcat/lib
rm -rf memcached-session-manager-tc6-1.6.3.jar
cd ..
bin/shutdown.sh
bin/startup.sh
tail logs/catalina.out



【server2】
yum install memcached
/etc/init.d/memcached start

【server1】
bin/shutdown.sh
bin/startup.sh
tail logs/catalina.out



【server2】
bin/startup.sh
tail logs/catalina.out



yum install telnet



当执行 /etc/init.d/memcached stop 才会改变为n2
避免数据丢失