Memcached, Locking and Race Conditions

Question

We are trying to update memcached objects when we write to the database to avoid having to read them from database after inserts/updates.

For our forum post object we ha

Answer 1

memcached operations are atomic. the server process will queue the requests and serve each one completely before going to the next, so there's no need for locking.

edit: memcached has an increment command, which is atomic. You just have to store the counter as a separate value in the cache.