On a "
nginx + memcached caching application to build the page
"
http://www.ttlsa.com/html/2418.html
in and said, nginx is only responsible for reading data from memcached server, the data have to be written to memcached We need to complete the back-end application. Use memc-nginx and srcache-nginx module can proactively add cache to memcached, the application is transparent. Greatly improved dynamic page access speed. First visit to create a cache, follow-up visits in the cache expiration, return directly from memcached, does not require php-fpm process again. nginx_memc module nginx_srcache modules which are used to provide back-end operation of the cache server, technically, any module may provide an interface with the REST nginx_srcache cooperate to acquire and store cached child requests. Use memcached as caching backend, we need to pay attention to memcached storage size limit shall not exceed 1M. In order to use a more relaxed back-end storage services, such as recommended redis, see "
srcache_nginx + redis build the cache system
. " 1. memc-nginx-module module Instructions: memc_pass Syntax: memc_pass address: port or socket; default: none configuration section: http, server, location, if the specified address server memcached. memc_cmds_allowed syntax: memc_cmds_allowed <cmd> ... Default: none configuration section: http, server, location, if allowed to access the list of memcached command. By default, all the memcached commands can be accessed. memc_flags_to_last_modified syntax: memc_flags_to_last_modified on | off Default value: off configuration section: http, server, location, if read memcached logo, and set it to Last-Modified header value. For conditional get, nginx returns 304 Not Modified response, in order to save bandwidth. memc_connect_timeout syntax: memc_connect_timeout <time> default value: 60s configuration section: http, server, location and memcached server to establish a connection timeout. Shall not exceed 597 hours. memc_send_timeout Syntax: memc_send_timeout <time> Default: 60s configuration section: http, server, location is provided to the transmission request time memcached server. Shall not exceed 597 hours. memc_read_timeout Syntax: memc_read_timeout <time> Default: 60s configuration section: http, server, location defined memcached read response from the server timeout. Shall not exceed 597 hours. memc_buffer_size Syntax: memc_buffer_size <size> Default: 4k / 8k configuration section: http, server, location server memcached read response received from the buffer size. 2. memcached memcached commands supported storage command set, add, replace, prepend, append, to $ memc_key as the key. $ Memc_exptime defined expiration time, the default value is 0. $ Memc_flags as a logo, the default value is 0, to establish the appropriate memcached queries. $ Memc_value If not defined, then the request body as the value of the request, in addition to incr and decr command. Note: If the value is $ memc_value defined as an empty string, then the empty string is still as. 2.1 get $ memc_key use keys to retrieve the value.
7.2 subsequent access (directly from the cache response)
for the first time to create the cache access, the subsequent access in the cache expiration time, returns from the memcached, does not require re php -fpm process. Greatly enhance the dynamic page access speed. "
Memc_nginx + srcache_nginx + memcached problems encountered
" For reprint please indicate the source: http: //www.ttlsa.com/html/2460.html
location /foo {
set $memc_cmd 'get';
set $memc_key 'my_key';
memc_pass 127.0.0.1:11211;
add_header X-Memc-Flags $memc_flags;
}location /foo {
set $memc_cmd 'set';
set $memc_key 'my_key';
set $memc_flags 12345;
set $memc_exptime 24;
memc_pass 127.0.0.1:11211;
}location /foo {
set $memc_cmd 'set';
set $memc_key 'my_key';
set $memc_flags 12345;
set $memc_exptime 24;
set $memc_value 'my_value';
memc_pass 127.0.0.1:11211;
}location /foo
set $memc_cmd delete;
set $memc_key my_key;
memc_pass 127.0.0.1:11211;
}location /foo {
set $memc_key my_key;
set $memc_value 2;
memc_pass 127.0.0.1:11211;
}location /foo {
set $memc_cmd flush_all;
memc_pass 127.0.0.1:11211;
}location /foo {
set $memc_cmd stats;
memc_pass 127.0.0.1:11211;
}location /foo {
set $memc_cmd version;
memc_pass 127.0.0.1:11211;
}proxy_set_header Accept-Encoding "";# wget https://github.com/agentzh/memc-nginx-module/archive/master.zip
# wget https://github.com/agentzh/srcache-nginx-module/archive/master.zip
# ./configure --prefix=/usr/local/nginx-1.2.5 \
--add-module=../srcache-nginx-module
--add-module=../memc-nginx-module
# make
# make installupstream memcacheds {
server 10.1.240.166:22222;
}
server {
listen 8090;
server_name test.ttlsa.com;
index index.html index.htm index.php;
root /data/wwwroot/www.ttlsa.com/webroot;
location /memc {
internal;
memc_connect_timeout 100ms;
memc_send_timeout 100ms;
memc_read_timeout 100ms;
set $memc_key $query_string;
set $memc_exptime 120;
memc_pass memcacheds;
}
location ~ .*\.php?$
{
if ($uri ~ /ttlsa/){
set $ttlsa_key $request_uri;
srcache_fetch GET /memc $ttlsa_key;
srcache_store PUT /memc $ttlsa_key;
add_header X-Cached-From $srcache_fetch_status;
add_header X-Cached-Store $srcache_store_status;
}
include fastcgi_params;
fastcgi_pass 127.0.0.1:10081;
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;
}
}
7.2 subsequent access (directly from the cache response)
for the first time to create the cache access, the subsequent access in the cache expiration time, returns from the memcached, does not require re php -fpm process. Greatly enhance the dynamic page access speed. "
Memc_nginx + srcache_nginx + memcached problems encountered
" For reprint please indicate the source: http: //www.ttlsa.com/html/2460.html
Reproduced in: https: //my.oschina.net/766/blog/211446