Linode Center OS 6.5(x64) 用Nginx 反向代理多個Tomcat 負載均衡。
#安裝Java JDK
yum install java-1.7.0-openjdk.x86_64
#安裝Tomcat
cd /usr/local
mkdir tomcat
wget http://archive.apache.org/dist/tomcat/tomcat-6/v6.0.37/bin/apache-tomcat-6.0.37.tar.gz
tar -zxf apache-tomcat-6.0.37.tar.gz
mv apache-tomcat-6.0.37 tomcat6-8080
cp -R tomcat6-8080 tomcat6-8081
vim tomcat6-8081/conf/server.xml
#修改以下位置
<Server port="8005" shutdown="SHUTDOWN">
<Server port="8006" shutdown="SHUTDOWN">
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<Connector port="8081" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8444" />
<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
<Connector port="8010" protocol="AJP/1.3" redirectPort="8444" />
#安裝Nginx
#1.安裝所需環境
yum -y install gcc gcc-c++ autoconf libjpeg libjpeg-devel libpng libpng-devel freetype freetype-devel libxml2 libxml2-devel zlib zlib-devel glibc glibc-devel glib2 glib2-devel bzip2 bzip2-devel ncurses ncurses-devel curl curl-devel e2fsprogs e2fsprogs-devel krb5-server krb5-devel libidn libidn-devel openldap openldap-devel nss_ldap openldap-clients openldap-servers
yum install pcre-devel zlib-devel
#2.安裝Nginx
wget http://nginx.org/download/nginx-1.0.14.tar.gz
tar xzf nginx-1.0.14.tar.gz
cd nginx-1.0.14
./configure --prefix=/usr/local/nginx
make && make install
#配置Nginx實現負載均衡
cp /usr/local/nginx/conf/nginx.conf /usr/local/nginx/conf/nginx.conf.bak
vim /usr/local/nginx/conf/nginx.conf
刪除 nginx.conf 中全部內容 並加入以下內容
#運行用戶
#user nobody;
#開啓進程數 <=CPU數
worker_processes 2;
#錯誤日誌保存位置
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#進程號保存文件
#pid logs/nginx.pid;
#等待事件
events {
#Linux下打開提高性能
#use epoll;
#每個進程最大連接數（最大連接=連接數x進程數）
worker_connections 1024;
}
http {
#文件擴展名與文件類型映射表
include mime.types;
#默認文件類型
default_type application/octet-stream;
#日誌文件輸出格式 這個位置相於全局設置
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#請求日誌保存位置
#access_log logs/access.log main;
#設定請求緩衝
client_header_buffer_size 1k;
large_client_header_buffers 4 4k;
#打開發送文件
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#客戶端上傳文件大小控制
client_max_body_size 8m;
#打開gzip壓縮
#gzip on;
#設定負載均衡的服務器列表
#upstream mysvr {
# #weigth參數表示權值，權值越高被分配到的機率越大
# #本機上的Squid開啓3128端口
# #server 192.168.8.1:3128 weight=5;
# #server 192.168.8.2:80 weight=1;
# #server 192.168.8.3:80 weight=6;
#}
#第一個虛擬主機
upstream mytomcats {
server 127.0.0.1:8080;
server 127.0.0.1:8081;
}
server {
#監聽IP端口
listen 80;
#主機名
server_name localhost;
#root
root /usr/local/tomcat/tomcat6-8080/webapps/ROOT;
#設置字符集
#charset koi8-r;
#本虛擬server的訪問日誌 相當於局部變量
#access_log logs/host.access.log main;
#日誌文件輸出格式
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#location / {
# root html;
# index index.html index.htm;
#}
location ~ (\.html)|(\.jsp)$ {
proxy_pass http://mytomcats;
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
client_max_body_size 10m;
client_body_buffer_size 128k;
proxy_connect_timeout 90;
proxy_send_timeout 90;
proxy_read_timeout 90;
proxy_buffer_size 4k;
proxy_buffers 4 32k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
}
#靜態文件緩存時間設置
#location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)${
# expires 30d;
#}
#靜態文件緩存時間設置
#location ~ .*\.(js|css)?${
# expires 1h;
#}
#對本server"/"啓用負載均衡
#location / {
# proxy_pass http://mysvr;
# proxy_redirect off;
# proxy_set_header Host $host;
# proxy_set_header X-Real-IP $remote_addr;
# proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
# client_max_body_size 10m;
# client_body_buffer_size 128k;
# proxy_connect_timeout 90;
# proxy_send_timeout 90;
# proxy_read_timeout 90;
# proxy_buffer_size 4k;
# proxy_buffers 4 32k;
# proxy_busy_buffers_size 64k;
# proxy_temp_file_write_size 64k;
#}
#設定查看Nginx狀態的地址
#location /NginxStatus {
# stub_status on;
# access_log on;
# auth_basic “NginxStatus”;
# auth_basic_user_file conf/htpasswd;
#}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# 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 {
#多監聽
# listen 8666;
#主機名
# server_name localhost;
#WEB文件路徑
# root /tmp;
#默認首頁
# index HomePage.html;
#location / {
# #這裏相當於局部變量
# root E:/Portal;
# index HomePage.html;
#}
# }
# HTTPS server HTTPS SSL加密服務器
#
#server {
# listen 443;
# server_name localhost;
# ssl on;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_timeout 5m;
# ssl_protocols SSLv2 SSLv3 TLSv1;
# ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
}#啓動Tomcat
/usr/local/tomcat/tomcat6-8080/bin/startup.sh
/usr/local/tomcat/tomcat6-8081/bin/startup.sh
#啓動Nginx
/usr/local/tomcat/nginx/sbin/nginx
OK DONE.