Using the session key (looking at cookie headers) I am able to open memcache via telnet and do get <session-key> fine, I see the payload, however if I do an explicit logout on the frontend, I still see the session payload on a subsequent get <session-key>. I understand the cleanup vocab for handling expired session but I was wondering if there was a design reason that why on an explicit logout it doesn't take the opportunity to delete the session entry from memcache?