Tomcat高负载WEB服务器Tomcat多实例

Posted 2022-06-12 资本家的鱼

关闭主站

bash /usr/local/tomcat/bin/shutdown.sh

准备多实例主目录

mkdir  /usr/local/tomcat/instance1..3

制作实例工作目录

# cp -r /usr/local/tomcat/conf,logs,temp,work /usr/local/tomcat/instance1/
# cp -r /usr/local/tomcat/conf,logs,temp,work /usr/local/tomcat/instance2/
# cp -r /usr/local/tomcat/conf,logs,temp,work /usr/local/tomcat/instance3/

查看目录结构
tree -d -L 2 /usr/local/tomcat/
/usr/local/tomcat/
├── bin
├── instance1
│   ├── conf
│   ├── logs
│   ├── temp
│   └── work
├── instance2
│   ├── conf
│   ├── logs
│   ├── temp
│   └── work
├── instance3
│   ├── conf
│   ├── logs
│   ├── temp
│   └── work
└── lib

修改端口

将web配置文件拷贝三份。分别修改为不同端口
vim /usr/local/tomcat/instance1/conf/server.xml

服务端口 8080 替换成 8081
<Connector port="8081" protocol="HTTP/1.1" 
               connectionTimeout="20000"
               redirectPort="8443" />
               
 程序工作端口：8005替换成 8091              
<Server port="8091" shutdown="SHUTDOWN">           
          
网站目录：webapps 替换成 另一个目录
appBase="/webapps"

vim /usr/local/tomcat/instance2/conf/server.xml

服务端口 8080 替换成 8082
<Connector port="8082" protocol="HTTP/1.1" 
               connectionTimeout="20000"
               redirectPort="8443" />
               
 程序工作端口：8005替换成 8092              
<Server port="8092" shutdown="SHUTDOWN">           
          
网站目录：webapps 替换成 另一个目录
appBase="/webapps"

vim /usr/local/tomcat/instance2/conf/server.xml

服务端口 8080 替换成 8083
<Connector port="8083" protocol="HTTP/1.1" 
               connectionTimeout="20000"
               redirectPort="8443" />
               
 程序工作端口：8005替换成 8093              
<Server port="8093" shutdown="SHUTDOWN">           
          
网站目录：webapps 替换成 另一个目录
appBase="/webapps"

启动脚本

vim /usr/local/tomcat/instance1/ins1.sh

#!/bin/bash
#instance1
. /etc/init.d/functions
#functions系统自带脚本。功能函数
export CATALINA_BASE="/usr/local/tomcat/instance1"

case "$1" in
start)
        $CATALINA_HOME/bin/startup.sh
        ;;
stop)
        $CATALINA_HOME/bin/shutdown.sh
        ;;
restart)
        $CATALINA_HOME/bin/shutdown.sh
        sleep 5
        $CATALINA_HOME/bin/startup.sh
        ;;
esac
export JAVA_OPTS=-Xms64m -Xmx128m

vim /usr/local/tomcat/instance1/ins2.sh

#!/bin/bash
#instance2
. /etc/init.d/functions
#functions系统自带脚本。功能函数
export CATALINA_BASE="/usr/local/tomcat/instance2"

case "$1" in
start)
        $CATALINA_HOME/bin/startup.sh
        ;;
stop)
        $CATALINA_HOME/bin/shutdown.sh
        ;;
restart)
        $CATALINA_HOME/bin/shutdown.sh
        sleep 5
        $CATALINA_HOME/bin/startup.sh
        ;;
esac
export JAVA_OPTS=-Xms64m -Xmx128m

vim /usr/local/tomcat/instance1/ins3.sh

#!/bin/bash
#instance3
. /etc/init.d/functions
#functions系统自带脚本。功能函数
export CATALINA_BASE="/usr/local/tomcat/instance3"

case "$1" in
start)
        $CATALINA_HOME/bin/startup.sh
        ;;
stop)
        $CATALINA_HOME/bin/shutdown.sh
        ;;
restart)
        $CATALINA_HOME/bin/shutdown.sh
        sleep 5
        $CATALINA_HOME/bin/startup.sh
        ;;
esac
export JAVA_OPTS=-Xms64m -Xmx128m

赋权

chmod +x /usr/local/tomcat/instance1/ins1.sh 
chmod +x /usr/local/tomcat/instance2/ins2.sh
chmod +x /usr/local/tomcat/instance3/ins3.sh 

网站源码

mkdir /webapps
cp -r /usr/local/tomcat/webapps/ROOT/ /webapps/

启动

/usr/local/tomcat/instance1/ins1.sh star
/usr/local/tomcat/instance2/ins2.sh start
/usr/local/tomcat/instance3/ins3.sh start

测试

http://192.168.0.104:8091
http://192.168.0.104:8092
http://192.168.0.104:8093