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:
yum install -y nginx
如提示包不存在,安装epel源即可
rpm -ivh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm
修改nginx配置文件
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
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
tar -zxvf apache-tomcat-7.0.52.tar.gz -C/usr/local/tomcat
tomcat-redis-session-manager组件实现session共享
wget https://github.com/downloads/jcoleman/tomcat-redis-session-manager/tomcat-redis-session-manager-1.2-tomcat-7-Java-7.jar wget http://central.maven.org/maven2/redis/clients/jedis/2.5.2/jedis-2.5.2.jar wget http://central.maven.org/maven2/org/apache/commons/commons-pool2/2.0/commons-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
<ValveclassName="com.orangefunction.tomcat.redissessions.RedisSessionHandlerValve"/> <ManagerclassName="com.orangefunction.tomcat.redissessions.RedisSessionManager" host="192.168.1.116" port="6379" database="0" maxInactiveInterval="60" />
wget http://redis.googlecode.com/files/redis-2.6.13.tar.gz
tar -zxvf redis-2.6.13.tar.gz
cd redis-2.6.13 && make && make install
make test
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
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
mkdir -pv /usr/local/tomcat/webapps/session/WEB-INF/{classes,lib}
vim index.jsp
192.168.1.240:
<%@ 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
<%@ 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>
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