nginx+tomcat8+memcached实现session共享
安装nginx-1.13.8安装jdk1.8.0_144
安装tomcat-8.5.24
安装memcached-1.4.15
下载tomcat8连接memcached所需jar包
官方参考资料:https://github.com/magro/memcached-session-manager/wiki/SetupAndConfiguration#decide-which-serialization-strategy-to-use
配置nginx
以下是我的主配置文件，请根据自己情况进行修改
worker_processes1;
events {
worker_connections1024;
}
http {
include mime.types;
default_typeapplication/octet-stream;
sendfile on;
keepalive_timeout65;
upstream tomcat_nginx {
server 192.168.3.58:8080;
server 192.168.3.54:8080;
server 192.168.3.31:8080;
}
server {
listen 80;
server_namelocalhost;
location / {
proxy_pass http://tomcat_nginx;
}
error_page 500 502 503 504/50x.html;
location = /50x.html {
root html;
}
}
}
配置nginx的启动脚本
#! /bin/bash
# Description: Startup script for webserver on CentOS. cp it in /etc/init.d and
# chkconfig --add nginx && chkconfig nginx on
# then you can use server command control nginx
#
# chkconfig: 2345 08 99
# description: Starts, stops nginx
set -e
PATH=$PATH:/usr/local/nginx/sbin/
DESC="nginx daemon"
NAME=nginx
DAEMON=/usr/local/nginx/sbin/$NAME
CONFIGFILE=/usr/local/nginx/conf/nginx.conf
#PIDFILE=/var/run/nginx.pid
PIDFILE=/usr/local/nginx/logs/nginx.pid
SCRIPTNAME=/etc/init.d/$NAME
# Gracefully exit if the package has been removed.
test -x $DAEMON || exit 0
d_start() {
$DAEMON -c $CONFIGFILE || echo -n " already running"
}
d_stop() {
kill -QUIT `cat $PIDFILE` || echo -n " not running"
}
d_reload() {
kill -HUP `cat $PIDFILE` || echo -n " can't> }
case "$1" in
start)
echo -n "Starting $DESC: $NAME"
d_start
echo "."
;;
stop)
echo -n "Stopping $DESC: $NAME"
d_stop
echo "."
;;
reload)
echo -n "Reloading $DESC configuration..."
d_reload
echo "reloaded."
;;
restart)
echo -n "Restarting $DESC: $NAME"
d_stop
sleep 1
d_start
echo "."
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
exit 3
;;
esac
exit 0
启动nginx
编写tomcat的测试页面，一下是两种格式的，都可以用（放在webapps/ROOT/）
192.168.3.31
port:8080
this is tomcat 1!
SessionID:
SessionIP:
SessionPort:
启动tomcat
tomcat访问测试
nginx访问测试
tomcat8+memcached实现会话共享
下载jar包
不同版本的tomcat使用的jar包可能会有区别，本测试使用的是tomcat-8.5.24
jar包详细列表及tomcat（注：jedis-2.9.0.jar是连接redis的jar包）
修改conf/context.xml（每个tomcat）
这里是 non-sticky sessions + kryo，建议参考官方文档：https://github.com/magro/memcached-session-manager/wiki/SetupAndConfiguration
WEB-INF/web.xml
${catalina.base}/conf/web.xml
memcachedNodes="n1:192.168.3.31:11211"
sticky="false"
sessionBackupAsync="false"
lockingMode="none"
requestUriIgnorePattern=".*\.(ico|png|gif|jpg|jpeg|css|js)$"
sessionBackupTimeout="1000"
transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory"
/>
memcachedNodes是指定memcached，可以有多个节点，n1是标签，其他的靠猜
启动memcached，重启tomcat
访问测试
使用redis代替memcached
上面jar包里面jedis-2.9.0.jar就是连接redis的jar包，详情看官方的解释
测试失败(⊙﹏⊙)b
一堆版本不兼容的问题，尝试所有的jar包都用最新的结果不行
报错
缺少jar包或版本冲突
参考：https://github.com/magro/memcached-session-manager/wiki/SetupAndConfiguration#decide-which-serialization-strategy-to-use
https://wenku.baidu.com/view/caecc5cf6037ee06eff9aef8941ea76e58fa4abd.html
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