[shermantanktop]

Yes, I call it spoke-and-hub. The sharded spokes accept the writes and replicate back to the hub, where all shards coexist.

Useful for metric ingestion. Not useful for bank ledgers or whatever.

[hobs]

Yeah, some instances also have all the shards maintain all the state and just accept writes in your partition of values, merge replication in sql server works like this.