1. nginx模块
--add-module=../modules/ngx_devel_kit-0.2.18 --add-module=../modules/set-misc-nginx-module-0.22rc8 --add-module=../modules/srcache-nginx-module-0.22 --add-module=../modules/redis-nginx-module-0.3.6 --add-module=../modules/redis2-nginx-module-0.10
2. redis安装配置
# vim redis.conf
daemonize yes pidfile /var/run/redis-6379.pid port 6379 bind 127.0.0.1 timeout 0 tcp-keepalive 0 loglevel notice logfile stdout databases 16 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes dbfilename dump.rdb slave-serve-stale-data yes slave-read-only yes repl-disable-tcp-nodelay no slave-priority 100 maxmemory 8096mb maxmemory-policy volatile-ttl appendonly no appendfsync everysec no-appendfsync-on-rewrite no auto-aof-rewrite-percentage 100 auto-aof-rewrite-min-size 64mb lua-time-limit 5000 slowlog-log-slower-than 10000 slowlog-max-len 128 hash-max-ziplist-entries 512 hash-max-ziplist-value 64 list-max-ziplist-entries 512 list-max-ziplist-value 64 set-max-intset-entries 512 zset-max-ziplist-entries 128 zset-max-ziplist-value 64 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes
由于只把redis当做缓存使用,因此没有启用持久化。
3. nginx配置
# vim nginx.conf
http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '"$status" $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for" ' '"$gzip_ratio" $request_time $bytes_sent $request_length'; log_format srcache_log '$remote_addr - $remote_user [$time_local] "$request" ' '"$status" $body_bytes_sent $request_time $bytes_sent $request_length ' '[$upstream_response_time] [$srcache_fetch_status] [$srcache_store_status] [$srcache_expire]'; set_real_ip_from 10.0.0.0/8; real_ip_header X-Forwarded-For; include vhosts/test.jb51.net.conf; }
# vim vhosts/test.jb51.net.conf
upstream redis { server 127.0.0.1:6379; keepalive 512; } server { listen 80; server_name test.jb51.net; index index.html index.htm index.php; root /data/test.jb51.net/webroot; location ~ .*\.php { srcache_store_private on; srcache_methods GET; srcache_response_cache_control off; if ($uri ~ /jb51.net/pp.php$){ set $key $request_uri; set_escape_uri $escaped_key $key; srcache_fetch GET /redis $key; srcache_default_expire 172800; srcache_store PUT /redis2 key=$escaped_key&exptime=$srcache_expire; #add_header X-Cached-From $srcache_fetch_status; #set_md5 $md5key $key; #add_header X-md5-key $md5key; #add_header X-Cached-Store $srcache_store_status; #add_header X-Key $key; #add_header X-Query_String $query_string; #add_header X-expire $srcache_expire; access_log /data/httplogs/test.jb51.net-photo-access.log srcache_log; } include fastcgi_params; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_connect_timeout 60; fastcgi_send_timeout 180; fastcgi_read_timeout 180; fastcgi_buffer_size 128k; fastcgi_buffers 4 256k; fastcgi_busy_buffers_size 256k; fastcgi_temp_file_write_size 256k; fastcgi_intercept_errors on; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_split_path_info ^(.+\.php)(.*)$; fastcgi_param PATH_INFO $fastcgi_path_info; } location = /redis { internal; set_md5 $redis_key $args; redis_pass redis; } location = /redis2 { internal; set_unescape_uri $exptime $arg_exptime; set_unescape_uri $key $arg_key; set_md5 $key; redis2_query set $key $echo_request_body; redis2_query expire $key $exptime; redis2_pass redis; } error_log /data/httplogs/test.jb51.net-error.log; access_log /data/httplogs/test.jb51.net-aceess.log main; }
4. 测试
没有做缓存状态:
有做缓存状态:
5. 响应头状态
第一次请求:
再次请求:
6. 查看redis是否缓存以及过期时间
PS:srcache-nginx-module模块指令说明:
srcache_fetch
语法:srcache_fetch
默认值:no
配置段:http, server, location, location if
查询缓存。返回200说明缓存命中,直接从缓存响应客户端请求。非200需要后端程序处理。
srcache_fetch_skip
语法:srcache_fetch_skip
默认值:srcache_fetch_skip 0
配置段:http, server, location, location if
srcache_store
语法:srcache_store
默认值:no
配置段:http, server, location, location if
将当前请求的响应存入缓存。可以使用srcache_store_skip和srcache_store_max_size指令禁用缓存。不管是响应状态行,响应头,响应体都会被缓存。默认情况下,下列特殊响应头不会被缓存:
- Connection
- Keep-Alive
- Proxy-Authenticate
- Proxy-Authorization
- TE
- Trailers
- Transfer-Encoding
- Upgrade
- Set-Cookie
可以使用srcache_store_pass_header、srcache_store_hide_header指令来控制哪些头要缓存哪些不要。
注意:即使所有的响应数据被立即发送,当前的nginx请求生命周期未必完成,直到srcache_store子请求完成。这意味着服务器端延迟关闭TCP连接,或下一个请求服务发送同一个TCP连接。
srcache_store_max_size
语法:srcache_store_max_size
默认值:srcache_store_max_size 0
配置段:http, server, location, location if
当响应体超过该值,将不会缓存。
当后端缓存存储有对缓存数据做硬限制,这个指令非常有用。比如memcached服务器,上限是1M。
默认值0,不限制。
srcache_store_skip
语法:srcache_store_skip
默认值:srcache_store_skip 0
配置段:http, server, location, location if
srcache_store_statuses
语法:srcache_store_statuses
默认值:srcache_store_statuses 200 301 302
配置段:http, server, location, location if
该指令控制那些状态码响应被缓存。
srcache_header_buffer_size
语法:srcache_header_buffer_size
默认值:srcache_header_buffer_size 4k/8k
配置段:http, server, location, location if
在序列化响应头时控制头缓冲大小。默认大小为页面大小,通常为4k或8k,取决于具体平台。
注意:该大小是以每个头的,因此,需要足够大来容纳最大响应头。
srcache_store_hide_header
语法:srcache_store_hide_header
默认值:no
配置段:http, server, location, location if
默认情况下,除了以下头缓存所有响应头:
- Connection
- Keep-Alive
- Proxy-Authenticate
- Proxy-Authorization
- TE
- Trailers
- Transfer-Encoding
- Upgrade
- Set-Cookie
可以隐藏多个响应头,不区分大小写。如
srcache_store_hide_header X-Foo; srcache_store_hide_header Last-Modified;srcache_store_pass_header
语法:srcache_store_pass_header
默认值:no
配置段:http, server, location, location if
默认情况下,除了以下头缓存所有响应头:
- Connection
- Keep-Alive
- Proxy-Authenticate
- Proxy-Authorization
- TE
- Trailers
- Transfer-Encoding
- Upgrade
- Set-Cookie
可以缓存多个响应头,不区分大小写。如
srcache_store_pass_header Set-Cookie; srcache_store_pass_header Proxy-Autenticate;
srcache_methods
语法:srcache_methods
默认值:srcache_methods GET HEAD
配置段:http, server, location
srcache_ignore_content_encoding
语法:srcache_ignore_content_encoding on|off
默认值: srcache_ignore_content_encoding off
配置段:http, server, location, location if
内容是否编码。
建议后端服务器禁用gzip/deflate压缩。在nginx.conf配置:
proxy_set_header Accept-Encoding "";
srcache_request_cache_control
语法:srcache_request_cache_control on|off
默认值:srcache_request_cache_control off
配置段:http, server, location
当该指令为on时,请求头Cache-Control和Pragma按照下面的方法处理:
1. srcache_fetch查询缓存操作时,当请求头Cache-Control: no-cache 、 Pragma: no-cache 将跳过。
2. srcache_store存入缓存操作时,当请求头Cache-Control: no-store将跳过。
当该指令为off时,将禁用此功能,对于繁忙的站点依赖缓存加速被认为是最安全的。
srcache_response_cache_control
语法:srcache_response_cache_control on|off
默认值:srcache_response_cache_control on
配置段:http, server, location
当该指令为on时,响应头Cache-Control和Expires按照下面的方法处理:
Cache-Control: private skips srcache_store, Cache-Control: no-store skips srcache_store, Cache-Control: no-cache skips srcache_store, Cache-Control: max-age=0 skips srcache_store, Expires:skips srcache_store.
该指令优先级比srcache_store_no_store,srcache_store_no_cache,srcache_store_private高。
srcache_store_no_store
语法:srcache_store_no_store on|off
默认值:srcache_store_no_store off
配置段:http, server, location
开启该指令,将强制响应头Cache-Control: no-store。默认为关闭。
srcache_store_no_cache
语法:srcache_store_no_cache on|off
默认值:srcache_store_no_cache off
配置段:http, server, location
开启该指令,将强制响应头Cache-Control: no-cache。默认为关闭。
srcache_store_private
语法:srcache_store_private on|off
默认值:srcache_store_private off
配置段:http, server, location
开启该指令,将强制响应头Cache-Control: private。默认为关闭。
srcache_default_expire
语法:srcache_default_expire