通过Nginx+mongodb-gridfs+squid实现简单的图片存储及图片缓存示例

图片存储

通过Nginx+mongodb-gridfs+squid实现简单的图片存储及图片缓存.

 

图片先从nginx本地cache里查找,然后到站点去找,再而到squid 里查找,都找不到最后才到mongodb-girdfs查找,然后把图片cache到squid.

 

Nginx编译安装

./configure--prefix=/usr/local/nginx --with-http_realip_module --with-http_addition_module--with-http_gzip_static_module --with-http_secure_link_module--with-http_stub_status_module --with-pcre=../pcre-8.02--add-module=../ngx_cache_purge-1.4 --with-zlib=../zlib-1.2.3/--add-module=../nginx-gridfs --add-module=./nginx_upstream_jvm_route/--with-http_stub_status_module

Make

Makeinstall

 

 

Nginx配置

user nobody;

worker_processes 4;

error_log logs/nginx_error.log  crit;

pid       /usr/local/nginx/nginx.pid;

worker_rlimit_nofile 20480;

events

{

 useepoll;

 worker_connections 20480;

}

http

{

 upstream cd {

   server  127.0.0.1:8082;

  }

 

 include      mime.types;

 default_type application/octet-stream;

 charset UTF-8;

 server_names_hash_bucket_size 128;

 client_header_buffer_size 32k; sendfile on;

 tcp_nopush    on;

 keepalive_timeout 60;

 tcp_nodelay on;

 proxy_connect_timeout 30;

 proxy_read_timeout 60;

 proxy_send_timeout 20;

 proxy_buffer_size 96k;

 proxy_buffers 8 256k;

 proxy_busy_buffers_size 512k;

 proxy_temp_file_write_size 512k;

 proxy_temp_path /usr/local/nginx/proxy_temp;

 proxy_cache_path /usr/local/nginx/wwwlevels=1:2 keys_zone=cache_one:200m inactive=1d max_size=200m;

gzip on;

 gzip_proxied any;

 gzip_min_length  1k;

 gzip_buffers     4 16k;

 gzip_http_version 1.0;

 gzip_comp_level 2;

 gzip_types       text/plain application/x-javascripttext/css application/xml;

 gzip_vary on;

server_tokens off;

 proxy_redirect off;

 proxy_set_header Host $host;

 proxy_set_header X-Real-IP $remote_addr;

 proxy_set_header X-Forwarded-For$http_x_forwarded_for;

{

  listen       80;

  server_name  192.168.2.248;

  index index.html;

  rewrite ^/image/(.*) /image/$1 last;

 

location ~ /purge(/.*)

   {

   proxy_cache_purge    cache_one$host$1$is_args$args;

   allow           all;

   deny          all;

   }   

 

 

location /  {

    proxy_pass http://cd;

}

 

location ~ .*\.(gif|png|jpg|jpge)$ {

    proxy_cache cache_one;

    proxy_cache_valid all 10m;

    proxy_cache_key $host$uri$is_args$args;

    proxy_pass http://cd;

    if (!-f $request_filename){

       proxy_pass http://192.168.2.248:8000;

       }

    }

 

access_log off;

 }

 

server

{

listen 8000;

server_name 192.168.2.241;

 

location /image/  {

 gridfs gfs

      field=filename

      type=string;

 mongo 192.168.2.241:38000;

}

 access_log off;

}

 

}

 

Mongodb配置

/usr/db/mongodb-linux-x86_64-2.0.2/bin/mongod--dbpath=/usr/db/data/sa --logpath=/usr/db/data/sa.log --port 38000 --fork--logappend --maxConns=500 --oplogSize=1000 –nohttpinterface

 

Squid配置

acl all src 0.0.0.0/0.0.0.0

acl manager proto cache_object

acl localhost src 127.0.0.1/255.255.255.255

acl to_localhost dst 127.0.0.0/8

acl SSL_ports port 443

acl Safe_ports port 80          # http

acl Safe_ports port 21          # ftp

acl Safe_ports port 443         # https

acl Safe_ports port 70          # gopher

acl Safe_ports port 210         # wais

acl Safe_ports port 1025-65535  # unregistered ports

acl Safe_ports port 280         # http-mgmt

acl Safe_ports port 488         # gss-http

acl Safe_ports port 591         # filemaker

acl Safe_ports port 777         # multiling http

acl CONNECT method CONNECT

acl Purge method PURGE

http_access allow all Purge

http_access allow manager localhost

http_access allow localhost

http_access allow all

icp_access allow all

http_port 8000 accel  vhost vport

cache_peer 192.168.2.241 parent 8000 0no-query originserver

hierarchy_stoplist cgi-bin ?

cache_mem 100 MB

maximum_object_size_in_memory 2000 KB

cache_dir ufs /home/cache 400 16 256  max-size=250000

cache_dir ufs /var/spool/squid 2000 16256       min-size=250000

maximum_object_size 409600 KB

cache_swap_low 80

cache_swap_high 85

logformat squid %ts.%03tu %6tr %>a%Ss/%03Hs %<st %rm %ru %un %Sh/%<A %mt

access_log /var/log/squid/access.log squid

cache_log /var/log/squid/cache.log

cache_store_log /var/log/squid/store.log

pid_filename /var/run/squid.pid

refresh_pattern -i \.gif$   100   20%     1440      ignore-reload

refresh_pattern -i \.jpg$    10    20%     20       ignore-reload

refresh_pattern -i \.png$   100   20%     1440      ignore-reload

refresh_pattern -i \.jpeg$  100   20%     1440      ignore-reload

refresh_pattern -i \.bmp$   100   20%     1440     ignore-reload

acl apache rep_header Server ^Apache

broken_vary_encoding allow apache

visible_hostname 192.168.2.248

dns_nameservers 202.96.134.33 8.8.8.8

hosts_file /etc/hosts

coredump_dir /var/spool/squid

 

squid分2个地方存储,小于250k的图片存入内存,大于250K的图片存在磁盘

 

cache_dir ufs /home/cache 400 16 256  max-size=250000

cache_dir ufs /var/spool/squid 2000 16256   min-size=250000

通过把内存挂载到硬盘的方法,来把图片保存至内存,提高访问速度

 

效果

页面

访问效果

Squid缓存效果,这时停掉后端的mongodb,访问还是没有问题的.图片依然可以正常显示

 

 

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