How to use Nginx as a cache server and delete its cache files

PHPz
Release: 2023-05-18 18:49:06
forward
1625 people have browsed it

使用nginx做cache服务器

需求就是缓存android的软件包,后缀名是apk。话不多说,直接上配置,供参考:

a-->nginx.conf
user www www;
worker_processes 8;
error_log /data/logs/nginx_error.log crit;
pid    /usr/local/nginx/nginx.pid;
worker_rlimit_nofile 204800;

events
{
 use epoll;
 worker_connections 204800;
}

http
{
  include    mime.types;
  #apk 文件类型
  #default_type application/vnd.android.package-archive;
  default_type application/octet-stream;

  charset utf-8;

  server_names_hash_bucket_size 128;
  client_header_buffer_size 2k;
  large_client_header_buffers 4 4k;
  client_max_body_size 8m;

  sendfile on;
  tcp_nopush   on;

  keepalive_timeout 60;
  open_file_cache max=204800 inactive=20s;
  open_file_cache_min_uses 1;
  open_file_cache_valid 30s;



  tcp_nodelay on;
  client_body_buffer_size 512k;
  
  #跟后端服务器连接的超时时间_发起握手等候响应超时时间
  proxy_connect_timeout 600;
  #连接成功后_等候后端服务器响应的时间_其实已经进入后端的排队之中等候处理
  proxy_read_timeout 600;
  #后端服务器数据回传时间_就是在规定时间内后端服务器必须传完所有数据
  proxy_send_timeout 600;
  #代理请求缓存区_这个缓存区间会保存用户的头信息以供nginx进行规则处理_一般只要能保存下头信息即可
  proxy_buffer_size 16k;
  #同上 告诉nginx保存单个用的几个buffer最大用多大空间
  proxy_buffers 4 64k;
  #如果系统很忙的时候可以申请更大的proxy_buffers 官方推荐*2
  proxy_busy_buffers_size 128k;
  #proxy缓存临时文件的大小
  proxy_temp_file_write_size 128k;

  gzip on;
  gzip_proxied expired no-cache no-store private auth;
  gzip_min_length 1k;
  gzip_buffers   4 16k;
  gzip_http_version 1.1;
  gzip_comp_level 3;
  gzip_types    text/plain application/x-javascript text/css application/xml;
  gzip_disable "msie [1-6]\.";
  gzip_vary on;

  #log_format access '$remote_addr - $remote_user [$time_local] '
  #          '"$request" $status $body_bytes_sent '
  #          '"$http_referer" "$http_user_agent" '
  #          '$host $request_time $http_x_forwarded_for';
  #access_log /data/logs/http.a.log;
  #error_log /data/logs/http.e.log;

  include vhosts/cache.peiqiang.net.conf;
}

upstream source_site {
  server 192.168.1.1:80 weight=7 max_fails=2 fail_timeout=30s;
  server 192.168.1.2:80 weight=4 max_fails=2 fail_timeout=30s;
}

b-->cache.peiqiang.net.conf
#用于指定本地目录来缓冲较大的代理请求
proxy_temp_path /data/soft/temp;
#设置web缓存区名为cache_one,内存缓存空间大小为12000m,自动清除超过15天没有被访问过的缓存数据,硬盘缓存空间大小200g
proxy_cache_path /data/soft/cache levels=1:2 keys_zone=cache_one:12000m inactive=15d max_size=200g;

server {
   listen 80;
   server_name cache.peiqiang.net;
   access_log /data/logs/a.log;
   error_log  /data/logs/e.log notice;

   # php scripts is not allowed within this site!
   location ~* \.(php|php5|jsp|asp|aspx)$ {
     deny all;
   }


   location / {

     proxy_next_upstream http_500 http_502 http_503 http_504 error timeout invalid_header;
     proxy_cache cache_one;
     proxy_cache_valid 200 304 12h;
     proxy_cache_key $uri$is_args$args;

     #反向代理,访问后端内容源服务器
     proxy_set_header host $host;
     proxy_set_header x-forwarded-for $remote_addr;
     proxy_pass http://source_site;
   }

   location ~* .*\.(apk)$ {
     error_page 302 404 = @fallback;

     #如果后端的服务器返回500、502、503、504执行超时等错误、自动将请求转发到upstream负载均衡池中的另一台服务器,实现故障转移
     proxy_next_upstream http_500 http_502 http_503 http_504 error timeout invalid_header;

     #使用web缓存区cache_one
     proxy_cache cache_one;

     #对不同的http状态码缓存设置不同的缓存时间
     proxy_cache_valid 200 304 12h;

     #设置web缓存的key值,nginx根据key值md5哈希存储缓存,这里根据"域名、uri、参数"组合成key
     proxy_cache_key $uri$is_args$args;


     #反向代理,访问后端内容源服务器
     proxy_set_header host $host;
     proxy_set_header x-forwarded-for $remote_addr;
     proxy_pass http://source_site;
     expires 1d;
   }

   location @fallback {
     rewrite ^ $scheme://apke.peiqiang.net$uri redirect;
     expires -1;
   }
}
Copy after login


说明:其实按这个配置location /这个匹配是多余的,因为过来一个后缀名为apk的软件包location ~* .*\.(apk)$已经给匹配上了,不会再到location /了,不过由于我们还会缓存些其他后缀名的文件,所以location /就是必须的。

c-->/etc/rc.local
#!/bin/sh
#
# this script will be executed *after* all the other init scripts.
# you can put your own initialization stuff in here if you don't
# want to do the full sys v style init stuff.

touch /var/lock/subsys/local
ulimit -hsn 65535
/usr/local/nginx/sbin/nginx
Copy after login

删除nginx缓存文件
一:脚本

a shell版

#!/bin/bash

#date: 2013-06-27
#auther: budong

#######################################################
#说明:
#  1.本脚本用于清除nginx缓存文件
#  2.查看你的nginx是根据什么作为key来hash的,我的设置是 proxy_cache_key $uri$is_args$args;
#  因此nginx会根据$uri$is_args$args作为key进行hash,因此可以模拟nginx对一个key进行再
#  hash找到相应的文件路径,删除(具体可随意找个缓存文件 more 一下看看)
#  3.缓存设置 proxy_cache_path /data/mumayi/cache levels=1:2 keys_zone=cache_one:6000m inactive=15d max_size=200g;
#  根据相应的配置,请做相应修改测试
#  4.uri格式请按照同级目录下rm_apk_list.txt中填写
#####################################################

while read -r line
do
  md5uri=`echo -n $line | md5sum | awk '{ print $1 }'`
  filepath=`echo "$md5uri" | awk '{print "/data/mumayi/cache/"substr($0,length($0),1)"/"substr($0,length($0)-2,2)"/"$0}'`
  rm -rf $filepath
done < /root/sbin/rm_apk_list.txt
b python版

#!/usr/local/python2.7/bin/python2.7
# -*- coding:utf8 -*-

#date: 2013-06-26
#name: budong

&#39;&#39;&#39;
说明:
  1.本脚本用于清除nginx缓存文件
  2.查看你的nginx是根据什么作为key来hash的,我的设置是 proxy_cache_key $uri$is_args$args;
  因此nginx会根据$uri$is_args$args作为key进行hash,因此可以模拟nginx对一个key进行再
  hash找到相应的文件路径,删除(具体可随意找个缓存文件 more 一下看看)
  3.缓存设置 proxy_cache_path /data/mumayi/cache levels=1:2 keys_zone=cache_one:6000m inactive=15d max_size=200g;
  根据相应的配置,请做相应修改测试
  4.uri格式请按照同级目录下rm_apk_list.txt中填写
&#39;&#39;&#39;
import os
import sys
try:
  from hashlib import md5
except:
  from md5 import md5

reload( sys )
sys.setdefaultencoding(&#39;utf-8&#39;)

project_root = os.path.dirname(os.path.abspath(__file__))
uri_file = &#39;&#39;.join([project_root,&#39;/rm_apk_list.txt&#39;])

def nginx_purge(uri):
  m = md5()
  m.update("%s" % uri)
  md5uri=m.hexdigest()
  md5uri_len=len(md5uri)
  dir1=md5uri[md5uri_len-1:]
  dir2=md5uri[md5uri_len-3:md5uri_len-1]
  file_path=("/data/mumayi/cache/%s/%s/%s" % (dir1, dir2, md5uri))
  if os.path.exists(file_path):
    os.remove(file_path)

with open("%s" % uri_file,&#39;r&#39;) as uri_file:
  for line in uri_file:
    line = line.rstrip()
    nginx_purge(line)
Copy after login

c ngx_cache_purge不做考虑,据说已经停止开发了

说明:

1 我的 /root/sbin/rm_apk_list.txt 文件

[root@budong ~]# cat /root/sbin/rm_apk_list.txt 
/2013/08/15/38/382272/shuazanzhushou_v1.8.16_mumayi_95a91.apk
Copy after login

2 查看一个缓存对象,应该有些明白了吧

[root@budong ~]# more /data/mumayi/cache/0/00/db9327b60a6b3c164516117f90d9d000
Copy after login
key: /2013/10/23/43/432816/dinuochongwudinopets_v1.1.1_mumayi_0b399.apk
http/1.1 200 ok
server: nginx/1.2.6
date: sun, 15 dec 2013 19:51:22 gmt
content-type: application/vnd.android.package-archive
content-length: 37466293
connection: close
last-modified: wed, 23 oct 2013 06:15:06 gmt
expires: wed, 18 dec 2013 17:35:07 gmt
cache-control: max-age=604800
accept-ranges: bytes
Copy after login

The above is the detailed content of How to use Nginx as a cache server and delete its cache files. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
source:yisu.com
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template