MSETSet multiple key/value pairs atomically per shard.
| Syntax | MSET key value [key value ...] |
| Group | string |
| Arity | -3 |
| Since | 1.0.0 |
| Flags | write |
| Complexity | O(N) pairs, one O(1) SET each |
| Redis compatibility | differs: atomic only per shard — pairs are split by key and applied shard-by-shard with no cross-shard barrier, so a reader can observe some pairs written and others not; Redis MSET is globally atomic |