nginx+apache+redis实现负载均衡、动静分离、session共享

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环境centos6.5
nginx:192.168.1.202
tomcat1:192.168.1.240
tomcat2:192.168.1.201
redis:192.168.1.116


nginx安装：

1	yum install -y nginx

如提示包不存在,安装epel源即可

1	rpm -ivh https://dl.fedoraproject.org/pub ... latest-6.noarch.rpm

修改nginx配置文件

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vim /etc/nginx/conf.d/default.conf user nginx; worker_processes 2;    error_log/usr/local/nginx/logs/nginx_error.log debug; pid /usr/local/nginx/nginx.pid;    worker_rlimit_nofile 51200;    events {          use epoll;          worker_connections 51200; }    http {          includemime.types;          default_type application/octet-stream;          #charset gb2312;          server_names_hash_bucket_size 128;          client_header_buffer_size 32k;          large_client_header_buffers 4 32k;          client_max_body_size 8m;          sendfile on;          tcp_nopush on;          tcp_nodelay on;          keepalive_timeout 60;          server_tokens   off;          client_body_buffer_size  512k;             gzip on;          gzip_min_length 1k;          gzip_buffers 16 64k;          gzip_http_version 1.0;          gzip_comp_leve l2;          gzip_types text/plain application/x-javascript text/css application/xml;          gzip_vary on;          #limit_zone crawler $binary_remote_addr 10m;             log_formataccess '$remote_addr - $remote_user [$time_local] "$request" '          '$status$body_bytes_sent "$http_referer" '          '"$http_user_agent"$http_x_forwarded_for';          access_log/usr/local/nginx/logs/access.log access;             upstream test {                    server192.168.1.201:8081 weight=1 max_fails=2 fail_timeout=30s;                    server192.168.1.240:8081 weight=1 max_fails=2 fail_timeout=30s;          }    server {          listen80;          server_name192.168.1.202;    location / {          proxy_next_upstream http_502 http_504 error timeout invalid_header;          index  index_tel.jsp index.jsp index.html index.htm;        proxy_pass http://test;          proxy_redirect    off;        proxy_set_header Host  $host;          proxy_set_header X-Real-IP $remote_addr;          proxy_set_header X-Forwarded-For  $remote_addr;          proxy_connect_timeout    5;          proxy_send_timeout      60;          proxy_read_timeout       5;          proxy_buffer_size       16k;          proxy_buffers         4 64k;          proxy_busy_buffers_size  128k;          proxy_temp_file_write_size 128k;     }    location ~.*\.(gif|jpg|jpeg|png|bmp|swf|otf|eot|svg|ttf|woff)$ { valid_referers  blocked 192.168.1.202; if ($invalid_referer) {          return421; }    expires 30d; }    location ~ .*\.(js|css)?$ { root /usr/local/nginx/html; expires 1h; }    } }

安装jdk和tomcat(1.240、1.201配置相同)
jdk这里使用1.7.0_40版本绿色免安装的

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tar -zxvf jdk-7u40-linux-x64.tar.gz  -C  /usr/local/ cat > /etc/profile.d/java.sh <<EOF export JAVA_HOME=/usr/local/jdk1.7.0_40 export PATH=$PATH:$JAVA_HOME/bin export JRE_HOME=$JAVA_HOME/jre export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib EOF

tomcat使用7.0.52版本的

1	tar -zxvf apache-tomcat-7.0.52.tar.gz -C/usr/local/tomcat

tomcat-redis-session-manager组件实现session共享

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wget https://github.com/downloads/jco ... tomcat-7-Java-7.jar wget http://central.maven.org/maven2/ ... 5.2/jedis-2.5.2.jar wget http://central.maven.org/maven2/ ... mmons-pool2-2.0.jar

将下载的jar包放置tomcat的lib目录下

修改tomcat下的context.conf文件

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<ValveclassName="com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve"/>    <ManagerclassName="com.orangefunction.tomcat.redissessions.RedisSessionManager"        host="192.168.1.116"        port="6379"        database="0"        maxInactiveInterval="60" />

1	wget http://redis.googlecode.com/files/redis-2.6.13.tar.gz

1	tar -zxvf redis-2.6.13.tar.gz

1	cd redis-2.6.13 && make && make install

1

make test

1	mkdir -pv /usr/local/redis/{bin,etc}

将src目录里面的redis-benchmark redis-check-aof redis-check-dump  redis-cli  redis-server拷贝至/usr/local/redis/bin下面
将redis.conf拷贝至/usr/local/redis/etc目录下
修改redis.conf

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daemonize yes #开启后台运行 # bind 127.0.0.1 ::1注释掉 protected-mode no #关闭保护模式

测试

1	mkdir -pv /usr/local/tomcat/webapps/session/WEB-INF/{classes,lib}

1	vim index.jsp

192.168.1.240:

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<%@ page language="java" %> <html> <head><title>TomcatA</title></head> <body>    <h1><font color="red">1.240</font></h1>    <table border="1">      <tr>        <td>Session ID</td>    <% session.setAttribute("1.240","1.240"); %>        <td><%= session.getId() %></td>      </tr>      <tr>        <td>Created on</td>        <td><%= session.getCreationTime() %></td>     </tr>    </table> </body> </html>

192.168.1.201

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<%@ page language="java" %> <html> <head><title>TomcatB</title></head> <body>    <h1><font color="blue">1.201</font></h1>    <table border="1">      <tr>        <td>Session ID</td>     <%session.setAttribute("1.201","1.201"); %>        <td><%= session.getId() %></td>      </tr>      <tr>        <td>Created on</td>        <td><%= session.getCreationTime() %></td>     </tr>    </table> </body> </html>