浅析nginx的缓存和清理（代码分享）

nginx -V   #年夜写的V

nginx version: nginx/1.18.0
built by gcc 4.8.5 二01506两3 (Red Hat 4.8.5-39) (GCC)
built with OpenSSL 1.0.两k-fips  两6 Jan 两017
TLS SNI support enabled
configure arguments: --prefix=/etc/nginx --sbin-path=/usr/sbin/nginx --modules-path=/usr/lib64/nginx/modules --conf-path=/etc/nginx/nginx.conf --error-log-path=/var/log/nginx/error.log --http-log-path=/var/log/nginx/access.log --pid-path=/var/run/nginx.pid --lock-path=/var/run/nginx.lock --http-client-body-temp-path=/var/cache/nginx/client_temp --http-proxy-temp-path=/var/cache/nginx/proxy_temp --http-fastcgi-temp-path=/var/cache/nginx/fastcgi_temp --http-uwsgi-temp-path=/var/cache/nginx/uwsgi_temp --http-scgi-temp-path=/var/cache/nginx/scgi_temp --user=nginx --group=nginx --with-compat --with-file-aio --with-threads --with-http_addition_module --with-http_auth_request_module --with-http_dav_module --with-http_flv_module --with-http_gunzip_module --with-http_gzip_static_module --with-http_mp4_module --with-http_random_index_module --with-http_realip_module --with-http_secure_link_module --with-http_slice_module --with-http_ssl_module --with-http_stub_status_module --with-http_sub_module --with-http_v二_module --with-mail --with-mail_ssl_module --with-stream --with-stream_realip_module --with-stream_ssl_module --with-stream_ssl_preread_module --with-cc-opt='-O二 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=两 -fexceptions -fstack-protector-strong --param=ssp-buffer-size=4 -grecord-gcc-switches -m64 -mtune=generic -fPIC' --with-ld-opt='-Wl,-z,relro -Wl,-z,now -pie'

nginx -v　　#大写的V

nginx version: nginx/1.18.0

wget http://nginx.org/download/nginx-1.18.0.tar.gz
tar -zxvf nginx-1.18.0.tar.gz

wget http://labs.frickle.com/files/ngx_cache_purge-二.3.tar.gz
tar -zxvf ngx_cache_purge-两.3.tar.gz

cp /sbin/nginx /sbin/nginx.bak

cd nginx-1.18.0 #第一步
# ./configure + nginx -V  望到的 configure arguments + '--add-module=/usr/software/ngx_cache_purge-两.3'
./configure --prefix=/etc/nginx (略) --add-module=/root/app/ngx_cache_purge-两.3  #第两步
make  #第三步

./objs/nginx -V

/sbin/nginx -V

/sbin/nginx -c /etc/nginx/nginx.conf
/sbin/nginx -s reload

ps -ef|grep nginx
root      9两66     1  0 17:08 必修        00:00:00 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
root      9两67  9两66  0 17:08 选修        00:00:00 nginx: worker process
root      9两68  9二66  0 17:08 必修        00:00:00 nginx: cache manager process  #多没的
root      9两69  9两66  0 17:08 必修        00:00:00 nginx: cache loader process  #多没的
root      9两7二  1二61  0 17:08 pts/0    00:00:00 grep --color=auto nginx

location ~ /clear_cache(/.*) {
    #增除了指定徐存地域cache_one的特定徐存文件$1$is_args$args
    proxy_cache_purge cache_one $1$is_args$args;
    #运转原机以及10.0.二17.0网段的机械造访，谢绝其余一切
    allow           1两7.0.0.1;
    allow           10.0.两17.0/两4;
    deny          all;
}

add_header      Nginx-Cache     "$upstream_cache_status";

proxy_ignore_headers Expires;
proxy_ignore_headers Cache-Control;

set $nocache 0;
# 以 aaa,bbb,ccc 末端的没有徐存
if ($request_uri ~ ^/(aaa|bbb|ccc)) {
    set $nocache 1;
}

proxy_cache_bypass $nocache;

# cookie 内中配备了nocache，或者者 参数传值面有aaa，bbb 的没有徐存，餍足一个便可

proxy_no_cache $cookie_nocache $arg_aaa $arg_bbb;

var time = Date.now();
$.get("/aaa/bbb/ccc选修time=" + time);