• Linux配置Nginx+Tomcat负载均衡


    cd /usr/local/tomcat1/webapps/ROOT/

    tar -zxvf nginx-1.14.2.tar.gz -C /usr/local

    一、Linux配置Nginx

    一、下载Nginx

      方式1:从http://nginx.org/en/download.html上下载稳定版,解压安装

      方式2:直接在Linux上用命令下载: wget http://nginx.org/download/nginx-1.10.2.tar.gz
      -bash: wget: command not found

      安装wget:
      yum -y install wget

      再执行下载nginx

    二、解压安装包&重命名   

      tar -zxvf nginx-1.14.2.tar.gz -C /usr/local

      mv nginx-1.14.2 nginx

    三、编译

      1、cd 到nginx目录下

      2、安装相关组件

    • yum install -y pcre pcre-devel
    • yum install -y zlib zlib-devel
    • yum install -y openssl openssl-devel

      这是提示缺少c++环境 ,用 yum install gcc-c++ 安装一下,再执行 ./configure,然后又报错了:

    ./configure: error: the HTTP rewrite module requires the PCRE library.
    You can either disable the module by using –without-http_rewrite_module
    option, or install the PCRE library into the system, or build the PCRE library
    statically from the source with nginx by using –with-pcre= option.

    没装伪静态模块需要pcre库
    解决方法:
    yum install -y pcre pcre-devel

    还有可能出现:
    错误提示:./configure: error: the HTTP cache module requires md5 functions
    from OpenSSL library. You can either disable the module by using
    –without-http-cache option, or install the OpenSSL library into the system,
    or build the OpenSSL library statically from the source with nginx by using
    –with-http_ssl_module –with-openssl= options.

    解决办法:
    yum -y install openssl openssl-devel

    最后 ./configure

     

    执行make 编译:

    然后:make install  报错:

     问题原因: 直接把安装包重命名成nginx了,安装文件没有路径了。

    解决办法如下:

    删除nginx 文件夹
    rm -rf nginx

    重新解决源码
    tar -zxvf nginx-1.10.2.tar.gz

    cd /usr/local/nginx-1.10.2

    生成Makefile文件

      ./configure --prefix=/usr/local/nginx

    编译源码
    make

    安装
    make install

    这里不必要太纠结,只要 /usr/local/ 下出现了 /nagix文件就ok,进入 cd /usr/local/nginx/sbin 下,启动 ./nginx

    问题1:出现端口占用,nginx一般是80端口,要么把其他的kill掉,要么更改nginx的端口

    1、kill掉其他的之前,要知道哪个占用了:用 lsof -i:80可以查看,这里是之前的lamp占用了

    2、我们可以修改nginx自身的监听端口,vi /usr/local/nginx/conf/nginx.conf  ,将listen 80,改为自己要的就行,我们这里改81

      

    server {
            listen       80;
            server_name  localhost;
    
            #charset koi8-r;
    
            #access_log  logs/host.access.log  main;
    
            location / {
                root   html;
                index  index.html index.htm;
            }

    之后进入我们的ip:81就可以访问:

    二、Linux配置Tomcat

      1、下载

      下载地址:https://tomcat.apache.org/download-90.cgi

      这里我们用tomcat 9 吧,下载后,一样放到 /usr/local 下,解压两份,一份作为 tomcat1 , 一份为 tomcat 2 这两份,用来做负载均衡

      解压: tar -zxvf apache-tomcat-9.0.13.tar.gz -C /usr/local

      重命名: mv apache-tomcat-9.0.13 tomcat1

      

      2、配置:

      修改其中一个tomcat2 的端口信息,tomcat1则不需要修改

      cd /usr/local/tomcat2/conf

      vi server.xml

      改以下三个端口为:8006,8081,8099

    <Server port="8005" shutdown="SHUTDOWN">
    <Connector port="8080" protocol="HTTP/1.1"
    <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />

      3、分别更改两个 tomcat下默认的jsp页面
      cd /usr/local/tomcat1/webapps/ROOT/

      vi index.jsp
      

      在body中添加一行html 代码,用于区分是哪个tomcat下的页面。

      4、启动两个tomcat

      

       cd /usr/local/tomcat1/bin

      ./startup.sh

      打开本地的ip:8080和ip:8081可以看到,两个页面都有提示信息:

    但是8080 被占用,我们用8081和8082:8081

    8082

     这样,就是安装成功啦!

    三、Nginx配置Tomcat负载均衡

      1、安装好nginx的情况下

      2、修改配置文件
      cd /usr/local/nginx/conf
      vi nginx.conf
      添加ngnix分配策略(权重策略)

      

    upstream   dangdang.com {
      server 192.168.66.129:8081  weight=1; //tomcat1 的ip和端口
      server 192.168.66.129:8082  weight=1; //tomcat2 的ip和端口
    }

    整个文件的信息如下:

    #user  nobody;
    worker_processes  1;
    
    #error_log  logs/error.log;
    #error_log  logs/error.log  notice;
    #error_log  logs/error.log  info;
    
    #pid        logs/nginx.pid;
    
    
    events {
        worker_connections  1024;
    }
    
    
    http {
        include       mime.types;
        default_type  application/octet-stream;
    
        #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
        #                  '$status $body_bytes_sent "$http_referer" '
        #                  '"$http_user_agent" "$http_x_forwarded_for"';
    
        #access_log  logs/access.log  main;
    
        sendfile        on;
        #tcp_nopush     on;
    
        #keepalive_timeout  0;
        keepalive_timeout  65;
    
        #gzip  on;
      upstream dangdang.com { 
        server 192.168.66.129:8081 weight=1; //tomcat1 的ip和端口
        server 192.168.66.129:8082 weight=1; //tomcat2 的ip和端口
      }
    server { listen
    81; server_name localhost; #charset koi8-r; #access_log logs/host.access.log main; location / { root html; index index.html index.htm;
           proxy_pass   http://dangdang.com; } #error_page
    404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ .php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # #location ~ .php$ { # root html; # fastcgi_pass 127.0.0.1:9000; # fastcgi_index index.php; # fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name; # include fastcgi_params; #} # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /.ht { # deny all; #} } # another virtual host using mix of IP-, name-, and port-based configuration # #server { # listen 8000; # listen somename:8080; # server_name somename alias another.alias; # location / { # root html; # index index.html index.htm; # } #} # HTTPS server # #server { # listen 443 ssl; # server_name localhost; # ssl_certificate cert.pem; # ssl_certificate_key cert.key; # ssl_session_cache shared:SSL:1m; # ssl_session_timeout 5m; # ssl_ciphers HIGH:!aNULL:!MD5; # ssl_prefer_server_ciphers on; # location / { # root html; # index index.html index.htm; # } #} }

    结果:一直刷新

    结果1:

    结果2:

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  • 原文地址:https://www.cnblogs.com/xiaowenshu/p/10099119.html
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