Nginx + tomcat + Memcached(session共享)

Posted 2020-08-11

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了Nginx + tomcat + Memcached(session共享)相关的知识，希望对你有一定的参考价值。

Nginx + tomcat + Memcached(session共享)

实验拓扑

nginx 实现负载

tomcat 实现web功能

memcached 实现会话共享

安装Nginx

[[email protected] ~]# yum -y install pcre pcre-devel

[[email protected] ~]# tar -zxvf nginx-1.0.5.tar.gz

[[email protected] ~]# cd nginx-1.0.5

[[email protected] nginx-1.0.5]# ./configure --prefix=/usr/local/nginx --with-pcre

[[email protected] nginx-1.0.5]# make

[[email protected] nginx-1.0.5]# make install

配置Nginx

[[email protected] ~]# ls -Z /var/ftp/rt.txt

upstream tomcatgrp {

server 192.168.170.33:8080;

server 192.168.170.43:8080;

}

server {

listen 80;

server_name nginx.tutu.com;

location / {

root html;

index index.html

index.htm;

proxy_pass http://tomcatgrp;

}

启动Nginx

[[email protected] ~]# /usr/local/nginx/sbin/nginx –t

nginx: ...... /usr/local/nginx/conf/nginx.conf syntax is ok

nginx: ...... /usr/local/nginx/conf/nginx.conf test is successful

[[email protected] ~]# /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf

安装jdk

[[email protected] ~]# chmod +x jdk-6u27-linux-i586.bin

[[email protected] ~]# ./jdk-6u27-linux-i586.bin

[[email protected] ~]# mv jdk1.6.0_27 /usr/local/jdk

[[email protected] ~]# vim /etc/bashrc //定义环境变量

export JAVA_HOME=/usr/local/jdk

export JAVA_BIN=/usr/local/jdk/bin

export PATH=$JAVA_HOME/bin:$PATH

export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

export JAVA_HOME JAVA_BIN PATH CLASSPATH

[[email protected] ~]# source /etc/bashrc //初始化环境变量

验证jdk

[[email protected] ~]# java -version

java version "1.6.0_27"

Java(TM) SE Runtime Environment (build 1.6.0_27-b07)

Java HotSpot(TM) Client VM (build 20.2-b06, mixed mode, sharing)

[[email protected] ~]#

启动tomcat

[[email protected] ~]# /usr/local/tomcat/bin/shutdown.sh //停止tomcat

[[email protected] ~]# /usr/local/tomcat/bin/startup.sh //启动tomcat

Using CATALINA_BASE: /usr/local/tomcat

Using CATALINA_HOME: /usr/local/tomcat

Using CATALINA_TMPDIR: /usr/local/tomcat/temp

Using JRE_HOME: /usr/local/jdk

Using CLASSPATH: /usr/local/tomcat/bin/bootstrap.jar

[[email protected] ~]# netstat -utnalp | grep :8080 //监听端口

tcp 0 0 :::8080 :::* LISTEN 3181/java

[[email protected] ~]#

配置验证用户

[[email protected] ~]# vim /usr/local/tomcat/conf/tomcat-users.xml

<tomcat-users>

<user username="admin" password="123456" roles="manager"/> //用户身份：manager

</tomcat-users>

[[email protected] ~]# /usr/local/tomcat/bin/shutdown.sh

[[email protected] ~]# /usr/local/tomcat/bin/startup.sh

访问tomcat

编写网页文件

[[email protected] ~]# vim /usr/local/tomcat/webapps/ROOT/test.jsp

<html>

<body bgcolor=“red”> //指定网页背景颜色

<%= request.getSession().getId() %> //获取sessionID

<h1>tomcatA 33</h1>

</center>

</body>

</html>

[[email protected] ~]#

测试nginx负载均衡

http://192.168.170.33:8080/test.jsp

每刷新一次就会访问到不同的tomcat上，但会话ＩＤ不一样，下面就解决会话ＩＤ不同的问题

在tomcat上部署msm

[[email protected] session]# ls

kryo-1.04.jar memcached-session-manager-1.5.1.jar msm-kryo-serializer-1.5.1.jar

kryo-serializers-0.9.jar memcached-session-manager-tc6-1.5.1.jar reflectasm-1.01.jar

memcached-2.5.jar minlog-1.2.jar

[[email protected] session]# cp *.jar /usr/local/tomcat/lib/

连接memcached

[[email protected] ~]# vim /usr/local/tomcat/conf/context.xml

</Context>

<Manager className="de.javakaffee.web.msm.MemcachedBackupSessionManager" memcachedNodes=“memA:192.168.170.44:11211,memB:192.168.170.49:11211" failoverNodes=“memB“ //指定memB为备用服务器

REQUESTuRILGNOREpATTERN=".*\(ico|png|gif|jpg|css|js)$" transcoderFactoryClass="de.javakaffee.web.msm.serializer.kryo.KryoTranscoderFactory" /> </Context>

[[email protected] ~]# /usr/local/tomcat/bin/shutdown.sh

[[email protected] ~]# /usr/local/tomcat/bin/startup.sh

安装事件库

[[email protected] ~]# tar –zxvf libevent-2.0.15-stable.tar.gz

[[email protected] ~]# cd libevent-2.0.15-stable

[[email protected] libevent-2.0.15-stable]# ./configure

[[email protected] libevent-2.0.15-stable]# make

[[email protected] libevent-2.0.15-stable]# make install

[[email protected] ~]# echo "/usr/local/lib" > /etc/ld.so.conf.d/libevent.conf

[[email protected] ~]# ldconfig //更新链接库

安装memcached

[ro[email protected] ~]# tar -zxvf memcached-1.4.5.tar.gz