我当前用于 drupal 配置的 nginx 出现以下错误。不知何故，我无法启用 nginx 缓存。尝试了不同的配置，但加班我得到了同样的错误。有人可以帮忙吗？
nginx: [emerg] the size 5242880 of shared memory zone "MYAPP" conflicts with already declared size 0 in /etc/nginx/nginx.conf:51
nginx: configuration file /etc/nginx/nginx.conf test failed
我的 nginx.conf
user nginx;
worker_processes auto;
http { include /etc/nginx/conf.d/*.conf;
include /etc/nginx/mime.types;
fastcgi_cache_path /var/cache/nginx levels=1:2 keys_zone=MYAPP:5M max_size=256M inactive=2h;
fastcgi_cache_key “$scheme$request_method$host$request_uri”;
add_header X-Cache $upstream_cache_status;
## Set a cache_uid variable for authenticated users.
map $http_cookie $cache_uid {
default nil; # hommage to Lisp :)
~SESS[[:alnum:]]+=(?<session_id>[[:alnum:]]+) $session_id;
}
map $request_method $no_cache { …