Great point and looking forward to Lua support in 2.6. GETRANGE and SETRANGE operations also allow buffered writes at the collection time because setting bit to

Great point and looking forward to Lua support in 2.6. GETRANGE and SETRANGE operations also allow buffered writes at the collection time because setting bit to 1 is an idempotent operation. They are particularly attractive in sharded environment where one can perform: WATCH bits = GETRANGE ... bits = bits | buffered_bits MULTI SETRANGE .... bits EXEC