FastDFS-27集群架构Tracker整合Nginx_fastdfs tracker nginx 集群设计-优快云博客

本文介绍如何在Nginx中配置ngx_cache_purge模块以实现高效的缓存管理和负载均衡。包括ngx_cache_purge模块的安装、配置过程及Nginx负载均衡设置。

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配置列表清单
主机名 IP地址用途
tracker_group1 192.168.47.203 tracker服务器group1
tracker_group2 192.168.47.204 tracker服务器group2

主机名	IP地址	用途
tracker_group1	192.168.47.203	tracker服务器group1
tracker_group2	192.168.47.204	tracker服务器group2

ngx_cache_purge作用

下载地址

https://github.com/FRiCKLE/ngx_cache_purge
用途
ngx_cache_purge是第三方模块，用于清理nginx内置模块（proxy_cache）缓存。就像CDN的清理缓存的url命令一样

安装Nginx

创建用户www来启动执行nginx进程
```
useradd www
```

安装编译所需的依赖包

yum install gcc gcc-c++ make automake autoconf libtool pcre* zlib openssl openssl-devel

nginx编译添加ngx_cache_purge模块
cd nginx-1.17.1

 ./configure     --user=www    --group=www     --prefix=/application/nginx-1.15.2     --with-http_ssl_module     --with-http_gzip_static_module  --with-http_stub_status_module  --add-module=/root/ngx_cache_purge-master

编译参数可根据实际情况而配置，只需要在编译的时候添加ngx_cache_purge module模块即可

安装
```
make && make install
```

软链接

ln -s /application/nginx-1.15.2   /application/nginx

配置nginx负载均衡和缓存

user  root;
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;
	use epoll;
}

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  65;

	#gzip  on;
	server_names_hash_bucket_size 128;
	client_header_buffer_size 32k;
	large_client_header_buffers 4 32k;
	client_max_body_size 300m;

	proxy_redirect off;
	proxy_set_header Host $http_host;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	proxy_connect_timeout 90;
	proxy_send_timeout 90;
	proxy_read_timeout 90;
	proxy_buffer_size 16k;
	proxy_buffers 4 64k;
	proxy_busy_buffers_size 128k;
	proxy_temp_file_write_size 128k;
	proxy_cache_path /fastdfs/cache/nginx/proxy_cache levels=1:2
	keys_zone=http-cache:200m max_size=1g inactive=30d;
	proxy_temp_path /fastdfs/cache/nginx/proxy_cache/tmp;

	upstream fdfs_group1 {
    	server 192.168.47.205:8888 weight=1 max_fails=2 fail_timeout=30s;
     	server 192.168.47.206:8888 weight=1 max_fails=2 fail_timeout=30s;
	}
 
	upstream fdfs_group2 {
     	server 192.168.47.207:8888 weight=1 max_fails=2 fail_timeout=30s;
     	server 192.168.47.208:8888 weight=1 max_fails=2 fail_timeout=30s;
	}

	server {
    	listen       8000;
    	server_name  localhost;

    	#charset koi8-r;

    	#access_log  logs/host.access.log  main;

    	location /group1/M00 {
        	proxy_next_upstream http_502 http_504 error timeout invalid_header;
        	proxy_cache http-cache;
        	proxy_cache_valid  200 304 12h;
        	proxy_cache_key $uri$is_args$args;
        	proxy_pass http://fdfs_group1;
        	expires 30d;
    	}
     
    	location /group2/M00 {
        	proxy_next_upstream http_502 http_504 error timeout invalid_header;
        	proxy_cache http-cache;
        	proxy_cache_valid  200 304 12h;
        	proxy_cache_key $uri$is_args$args;
        	proxy_pass http://fdfs_group2;
        	expires 30d;
    	}
	
    	location ~/purge(/.*) {
        	allow 127.0.0.1;
        	allow 192.168.47.0/24;
        	deny all;
        	proxy_cache_purge http-cache $1$is_args$args;
    	}    

    	#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;
    	}
	}
}

创建缓存使用目录

mkdir -p /fastdfs/cache/nginx/proxy_cache
mkdir -p /fastdfs/cache/nginx/proxy_cache/tmp

防火墙开启8000端口