Memcached is a caching software typically used in web servers. Many web servers like wikipedia, wordpress, flickr cache their data using Memcached software. Memcached server typically runs on port 11211. A client software (such as web server) can make get and set queries to memcached server. As clients can store sensitive information in Memcached, it is not advisable to connect Memcached servers to internet.
For my research, I would like to search the active memcached servers that are connected to internet. A simple search query on shodan.io would be "port:11211". As I only want "active" memcached servers, I want to list the servers which store more than 1000 items (cur_items > 1000). May I know how to query shodan?