[lmdb] Write to multiple paths #108
Description
It would be nice to have option to write to multiple DBs from same bucket.
If for some reason, I would need to run 4 pdns + lmdb instances, this would mean 4 LightningStream instances. That would not be a huge issue, but if you have huge database to sync, it becomes very painful (resource wise), since snapshot merging is quite expensive on cpu/ram (think of DB size of 40GB)
From my understaing, from LS perspective it is not that much different either write to one, or several paths as long as DBs are the same (receivers, so no local snapshots needed)