-storing timestamp for each field (user:name) by default seems costly, timestamp can be stored on main key(e.g. user), curious on the thinking..
-is timestamp 64bit? do we need miliseconds?
-what is your sharding architecture, in terms of rage queries
-are your global search indexes on this architecture
-storing timestamp for each field (user:name) by default seems costly, timestamp can be stored on main key(e.g. user), curious on the thinking.. -is timestamp 64bit? do we need miliseconds? -what is your sharding architecture, in terms of rage queries -are your global search indexes on this architecture