NGX_HTTP_USERID_MAX_EXPIRES 409 http/modules/ngx_http_userid_filter_module.c if (conf->expires == NGX_HTTP_USERID_MAX_EXPIRES) { NGX_HTTP_USERID_MAX_EXPIRES 721 http/modules/ngx_http_userid_filter_module.c ucf->expires = NGX_HTTP_USERID_MAX_EXPIRES;