Hello, We just migrated to Solr 9.2 and started using AffinityPlacementPlugin. In a sharded environment, we made sure there is enough storage on each node and enough nodes in each AZ, but it is interesting that shard1 and shard2 of the same collection were distributed on the same node. In Solr 8, it is by default not allowing 2 shards of the same collection on the same node.
We looked into the PlacementPlugins code, and didn't see any restrictions against that. Does anyone have the same issue? Do you have any suggestions? Thank you very much, Jing