Memcached

View keys stored in memcached

Assuming you have memcached running in a docker container locally at port 11211, you can list the number of unique keys with

$ echo -e "stats items" | nc localhost 11211 | grep -oe ':[0-9]*:' | sort | uniq
:11:
:9:

The identification immediately on the right of items: indicates a key. View the key name with

$ echo -e "stats cachedump 11 100" | nc localhost 11211

Python script to view all keys and values

from pymemcache.client import base


client = base.Client(("localhost", 11211))

memcached_ids = []
for key, _ in client.stats("items").items():
    _, number, _ = str(key).split(":")
    if number not in memcached_ids:
        memcached_ids.append(number)

memcached_keys = []
for id in memcached_ids:
    memcached_keys.extend(client.stats("cachedump", id, str.encode("100")).keys())

print(memcached_keys)
for key in memcached_keys:
    print(key, client.get(key.decode("utf-8")))