Nginx共享内存剖析及开源项目分享

//获取k/v
int ngx_shm_dict_handler_get(ngx_shm_zone_t* zone_t,ngx_str_t *key, ngx_str_t *value,uint32_t *exptime);
//设置k/v
int ngx_shm_dict_handler_set(ngx_shm_zone_t* zone_t,ngx_str_t *key, ngx_str_t *value,uint32_t exptime);
//设置key过期时间
int ngx_shm_dict_handler_set_exptime(ngx_shm_zone_t* zone_t, ngx_str_t* key, uint32_t exptime);
//删除k/v
int ngx_shm_dict_handler_delete(ngx_shm_zone_t* zone_t,ngx_str_t *key);
//计数器k/v
int ngx_shm_dict_handler_incr_int(ngx_shm_zone_t* zone_t,ngx_str_t *key, int count,uint32_t exptime,int64_t* res);
//清空共享内存
int ngx_shm_dict_handler_flush_all(ngx_shm_zone_t* zone_t);

git clone https://github.com/lidaohang/ngx_shm_dict
git clone https://github.com/lidaohang/ngx_shm_manager
git clone https://github.com/lidaohang/ngx_shm_dict_view

patch -p1 < ngx_shm_manager/nginx-1.4.1-1.58-proc-module.patch

./configure --add-module=ngx_shm_dict --add-module=ngx_shm_dict_view --add-module=ngx_shm_dict_manager
make && make install

processes {
    process ngx_shm_dict_manager {
        ngx_shm_dict_name test;
        interval 3s;
        delay_start 300ms;
        listen 8010;
    }
}

    ngx_shm_dict_zone zone=test max_size=2048m;
    ngx_shm_dict_zone zone=test1 max_size=2048m;
    
    ngx_shm_dict_zone zone=test2 max_size=2048m;
    ngx_shm_dict_zone zone=test3 max_size=2048m;


    server {
        listen       8011;
        server_name  localhost;

    location / {
        ngx_shm_dict_view;
    }
}

curl "http://127.0.0.1:8011/set?zone=test&key=abc&value=123&exptime=100"
curl "http://127.0.0.1:8011/get?zone=test&key=abc"
curl "http://127.0.0.1:8011/del?zone=test&key=abc"

redis-cli get abc
redis-cli set abc 123
redis-cli del abc
redis-cli ttl abc