Memcache no expires not working!

Narf is correct, a cache is just that "a cache" if it's gone then your code should recreate it?
If your site needs the cache to run then you need to rethink your code or not use a cache.

Don Myers

I was just saving a temporary data to the memcache because the data will not needed until we reject a users data. Why cache? saving it to the database is totally pointless because it will be deleted anyway(until I want to delete it). It also cause a high query loads.