if you delete the key near the code that sets/smears it, it's easy to just delete the range of keys: key1, key2, key3.. as needed You can send all such command

if you delete the key near the code that sets/smears it, it's easy to just delete the range of keys: key1, key2, key3.. as needed You can send all such commands to memcached at once, so you don't suffer more than one round-trip to multi-delete.