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

2016-07-04 16:52 1141 查看

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[/code]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[/code] 
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 tar' target='_blank'>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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