Nginx负载调度器+双Tomcat负载及会话共享+MySQL后端数据库

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Nginx负载调度器+双Tomcat负载及会话复制+MySQL后端数据库

环境：

一、session共享之前配置

步骤：

①关闭防火墙或者开放端口80，8080，3306，关闭selinux

②安装nginx

从nginx官网下载最新版wget http://nginx.org/download/nginx-1.13.9.tar.gz

[root@192 ~]# yum -y install pcre-devel zlib-devel gcc gcc-c++ make

[root@192 ~]# useradd -M -s /sbin/nologin nginx

[root@192 ~]# tar zxf nginx-1.13.9.tar.gz -C /usr/src

[root@192 ~]# cd /usr/src/nginx-1.13.9/

[root@192 nginx-1.13.9]# ./configure –prefix=/usr/local/nginx –user=nginx –group=nginx –with-http_stub_status_module && make && make install

[root@192 ~]# ln -s /usr/local/nginx/sbin/nginx /usr/local/sbin

不启动nginx

③两台tomcat主机进行安装

jdk从官网下载需要许可，允许之后下载至本地，导入主机tomcat从官网downloads找到tomcat7.0或者更高版本wget http://mirror.bit.edu.cn/apache/tomcat/tomcat-7/v<strong style="color:transparent">本文来源gao@daima#com搞(%代@#码@网&</strong><strong>搞gaodaima代码</strong>7.0.86/bin/apache-tomcat-7.0.86.tar.gz

[root@192 ~]# tar zxf jdk-7u65-linux-x64.gz -C /usr/src

[root@192 ~]# tar zxf apache-tomcat-7.0.54.tar.gz -C /usr/src

[root@192 ~]# mv jdk1.7.0_65/ /usr/local/java

[root@192 ~]# mv apache-tomcat-7.0.54/ /usr/local/tomcat7

[root@192 ~]# vim /etc/profile

export JAVA_HOME=/usr/local/javaexport CATALINA_HOME=/usr/local/tomcat7export PATH=$JAVA_HOME/bin:$CATALINA_HOME/bin:$PATH

[root@192 ~]# source /etc/profile

[root@192 ~]# java -version

java version "1.8.0_171"Java(TM) SE Runtime Environment (build 1.8.0_171-b11)Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)

[root@192 ~]# catalina.sh version

Using CATALINA_BASE:   /usr/local/tomcat7Using CATALINA_HOME:   /usr/local/tomcat7Using CATALINA_TMPDIR: /usr/local/tomcat7/tempUsing JRE_HOME:        /usr/local/javaUsing CLASSPATH:       /usr/local/tomcat7/bin/bootstrap.jar:/usr/local/tomcat7/bin/tomcat-juli.jarServer version: Apache Tomcat/7.0.Server built:   May 19 2014 10:26:15Server number:  7.0.86.0OS Name:        LinuxOS Version:     3.10.0-327.el7.x86_64Architecture:   amd64JVM Version:    1.7.0_65-b17JVM Vendor:     Oracle Corporation

启动tomcat
[root@192 ~]# /usr/local/tomcat7/bin/startup.sh

Using CATALINA_BASE:   /usr/local/tomcat7Using CATALINA_HOME:   /usr/local/tomcat7Using CATALINA_TMPDIR: /usr/local/tomcat7/tempUsing JRE_HOME:        /usr/local/javaUsing CLASSPATH:       /usr/local/tomcat7/bin/bootstrap.jar:/usr/local/tomcat7/bin/tomcat-juli.jarTomcat started.

测试访问

http://192.168.2.6:8080
http://192.168.2.7:8080

④两台主机修改tomcat配置文件
[root@192 ~]#cd /usr/local/tomcat7/conf

[root@192 ~]#cp server.xml server.xml.bak

[root@192 ~]#vim server.xml

.......<Engine name="Catalina" defaultHost="localhost" jvmRoute="tomcat-1"><Host name="localhost"  appBase="webapps"            unpackWARs="true" autoDeploy="true">        <Context docBase="/web/webapp1" path="" reloadable="true"/>

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