Hi everyone, we have the following situation: due to massive simultaneous inserts in mysql on possibly identical primary keys, we use the atomic memcache add() as a semaphore. In a few cases we observed the behaviour, that two simultaneous add() using the same key from different clients both returned true (due to consistent hashing the key has to be on the same machine).
Is it now possible, that the multithreaded memcached does return true on two concurrent add() on the same key, if the requests are handled by two different threads on the same machine? Any information on this would be appreciated. Kind regard, Jerome
