nginx反向代理负载均衡tomcat多实例

部署好开源的jspgou项目后使用nginx反向代理

1、tomcat多实例

复制一个tomcat
cp -r /opt/tomcat1 /opt/tomcat2
修改tomcat2的端口号
vim /opt/tomcat2/conf/server.xml
    <Server port="9005" shutdown="SHUTDOWN">    
     <Connector port="9090" protocol="HTTP/1.1"
或者使用sed进行修改
sed -i 's#8005#9005#;s#8080#9090#' /opt/tomcat2/conf/server.xml
diff /opt/tomcat1/conf/server.xml /opt/tomcat2/conf/server.xml  #对比文件不同之处

2、nginx配置文件修改

vim /etc/nginx/nginx.conf

upstream tomcat {
    server 192.168.68.159:8080 max_fails=1 fail_timeout=2;    #失败一次，两秒后在连
    server 192.168.68.159:9090 max_fails=1 fali_timeout=2;
}
server {
    listen 80;
    location / {
        proxy_pass http://tomcat;
        proxy_setheader Host $host:$server_port;
        proxy_next_upstream http_502 http_503 http_500 error timeout;
    }
}