如何使用Nginx作緩存服務(wù)器及刪除其緩存文件

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?文件類型 ??#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; ?? ??#跟后端服務(wù)器連接的超時時間_發(fā)起握手等候響應(yīng)超時時間 ??proxy_connect_timeout?600; ??#連接成功后_等候后端服務(wù)器響應(yīng)的時間_其實已經(jīng)進入后端的排隊之中等候處理 ??proxy_read_timeout?600; ??#后端服務(wù)器數(shù)據(jù)回傳時間_就是在規(guī)定時間內(nèi)后端服務(wù)器必須傳完所有數(shù)據(jù) ??proxy_send_timeout?600; ??#代理請求緩存區(qū)_這個緩存區(qū)間會保存用戶的頭信息以供nginx進行規(guī)則處理_一般只要能保存下頭信息即可 ??proxy_buffer_size?16k; ??#同上?告訴nginx保存單個用的幾個buffer最大用多大空間 ??proxy_buffers?4?64k; ??#如果系統(tǒng)很忙的時候可以申請更大的proxy_buffers?官方推薦*2 ??proxy_busy_buffers_size?128k; ??#proxy緩存臨時文件的大小 ??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?$http_x_forwarded_for'; ??#access_log?/data/logs/http.a.log; ??#error_log?/data/logs/http.e.log;  ??include?vhosts/cache.peiqiang.net.conf; }  upstream?source_site?{ ??server?192.168.1.1:80?weight=7?max_fails=2?fail_timeout=30s; ??server?192.168.1.2:80?weight=4?max_fails=2?fail_timeout=30s; }  b-->cache.peiqiang.net.conf #用于指定本地目錄來緩沖較大的代理請求 proxy_temp_path?/data/soft/temp; #設(shè)置web緩存區(qū)名為cache_one,內(nèi)存緩存空間大小為12000m，自動清除超過15天沒有被訪問過的緩存數(shù)據(jù)，硬盤緩存空間大小200g proxy_cache_path?/data/soft/cache?levels=1:2?keys_zone=cache_one:12000m?inactive=15d?max_size=200g;  server?{ ???listen?80; ???server_name?cache.peiqiang.net; ???access_log?/data/logs/a.log; ???error_log??/data/logs/e.log?notice;  ???#?php?scripts?is?not?allowed?within?this?site! ???location?~*?.(php|php5|jsp|asp|aspx)$?{ ?????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$args;  ?????#反向代理，訪問后端內(nèi)容源服務(wù)器 ?????proxy_set_header?host?$host; ?????proxy_set_header?x-forwarded-for?$remote_addr; ?????proxy_pass?http://source_site; ???}  ???location?~*?.*.(apk)$?{ ?????error_page?302?404?=?@fallback;  ?????#如果后端的服務(wù)器返回500、502、503、504執(zhí)行超時等錯誤、自動將請求轉(zhuǎn)發(fā)到upstream負載均衡池中的另一臺服務(wù)器，實現(xiàn)故障轉(zhuǎn)移 ?????proxy_next_upstream?http_500?http_502?http_503?http_504?error?timeout?invalid_header;  ?????#使用web緩存區(qū)cache_one ?????proxy_cache?cache_one;  ?????#對不同的http狀態(tài)碼緩存設(shè)置不同的緩存時間 ?????proxy_cache_valid?200?304?12h;  ?????#設(shè)置web緩存的key值，nginx根據(jù)key值md5哈希存儲緩存，這里根據(jù)"域名、uri、參數(shù)"組合成key ?????proxy_cache_key?$uri$is_args$args;   ?????#反向代理，訪問后端內(nèi)容源服務(wù)器 ?????proxy_set_header?host?$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; ???} }

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

#!/bin/bash  #date:?2013-06-27 #auther:?budong  ####################################################### #說明： #??1.本腳本用于清除nginx緩存文件 #??2.查看你的nginx是根據(jù)什么作為key來hash的，我的設(shè)置是?proxy_cache_key?$uri$is_args$args; #??因此nginx會根據(jù)$uri$is_args$args作為key進行hash，因此可以模擬nginx對一個key進行再 #??hash找到相應(yīng)的文件路徑，刪除（具體可隨意找個緩存文件?more?一下看看) #??3.緩存設(shè)置?proxy_cache_path?/data/mumayi/cache?levels=1:2?keys_zone=cache_one:6000m?inactive=15d?max_size=200g; #??根據(jù)相應(yīng)的配置，請做相應(yīng)修改測試 #??4.uri格式請按照同級目錄下rm_apk_list.txt中填寫 #####################################################  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?<p>c ngx_cache_purge不做考慮，據(jù)說已經(jīng)停止開發(fā)了<br><br>說明：</p><p>1 我的 /root/sbin/rm_apk_list.txt 文件<br></p><pre class="brush:bash;">[root@budong?~]#?cat?/root/sbin/rm_apk_list.txt? /2013/08/15/38/382272/shuazanzhushou_v1.8.16_mumayi_95a91.apk

[root@budong?~]#?more?/data/mumayi/cache/0/00/db9327b60a6b3c164516117f90d9d000

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