Nginx Cache Configuration
first, set the format of a cache log, you can view the "MISS" and "hit" status in the log
Log_format Cache ' * * * $time _local ' * * * * $upstream _cache_status ' ***cache-control: $upstream _http_cache_control ' Expires: $upstream _http_expires "* * *" $request "($status)" * * * "$http _user_agent";
next set the cache parameters
Proxy_connect_timeout 5;
Proxy_read_timeout 60;
Proxy_send_timeout 5;
Proxy_buffer_size 16k;
Proxy_buffers 4 64k;
Proxy_busy_buffers_size 128k;
Proxy_temp_file_write_size 128k;
#注: The path specified by Temp_path and Cache_path must be in the same partition
Proxy_temp_path/cache/temp_dir;
#设置Web缓存区名称为cache_one, the size of the memory cache is automatically cleared for content that is not accessed for 200mb,1 days, and the disk cache space size is 30GB.
Proxy_cache_path/cache/cache levels=1:2 keys_z max_size=30g;
#设定一个upstream
Upstream AppServer {
Server 192.168.10.5;
}
# used to clear the cache, assuming a URL to be Http://192.168.10.3/test.txt , by accessing Http://192.168.10.3/purge/test.txt you can clear the URL the cache. This feature requires manual compilation of the module Ngx_cache_purge, the download address is http://labs.frickle.com/files/, preferably with the latest version, in this case 2.1.
Location ~/purge (/.*) {
# setting allows only the specifiedIp orIp segment to clearUrl Cache.
Allow 127.0.0.1;
Allow 192.168.10.0/24;
Deny all;
Proxy_cache_purge Cache_one $host $1$is_args$args;
}
#注意, this rule must be placed after purge, because the rule is first matched before release, and a 404 error is reported when the cache is cleared.
Location ~. *\. (gif|jpg|png|htm|html|css|js|flv|ico|swf) (.*) {
Proxy_pass Http://appserver;
Proxy_redirect off;
# by domain name,Uri , parameters are combined intoWeb of the cacheKey values,Nginx according toKey value Hash, Store cached content in a level two cache directory
Proxy_cache_key $host $uri$is_args$args;
Proxy_set_header Host $host;
Proxy_set_header x-forwarded-for $remote _addr;
Proxy_cache Cache_one;
# Of the differentHTTP status codes set different cache times
Proxy_cache_valid 302 1h;
Proxy_cache_valid 301 1d;
Proxy_cache_valid any 1m;
Expires 30d;
# you can see it in the Cache.log log again.MISS and theHit status
Access_log/usr/local/nginx/logs/cache.log Cache;
}
configuration complete, reboot Nginx, cannot reload.
random access to a page http://192.168.10.3/9.jpg, the corresponding cache file will also be generated under/cache/cache
View Cache.log, you can see the first visit for Miss, the second for hit
***19/mar/2014:10:48:16 +0800 ***miss * * * Cache-control:-***expires:-* * * * * * * * * * * * * * * * * #后面浏览器信息就省略了
***19/mar/2014:10:48:37 +0800 ***hit * * * Cache-control:-***expires:-* * * * "get/9.jpg http/1.1" (304) * * *
clear cache
Access http://192.168 .10.3/purge/9.jpg, see the following message stating that the cache has been purged.
Successful purge
key:192.168.10.3/9.jpg
Path:/CACHE/CACHE/6/C1/368F9DB143996C9F865921F8B2C94C16
The above describes Ng Inx cache Configuration and Ngx_cache_purge summary, including aspects of the content, I hope that the PHP tutorial interested in a friend helpful.
