Hi I saw that we can define maxShardsPerNode when creating a collection, but I don't see that I can set something similar for replicas. My scenario is the following:
- I setup one Solr node - Create collection with numShards=1 and replicationFactor=2 - Hopefully, one replica is created on that node - When I bring up the second Solr node, the second replica will be created What I see is that both replicas are created on the first node, and when I bring up the second Solr node, none of the replicas are moved. I know that I can "move" one replica by calling ADDREPLICA on node2, then DELETEREPLICA on node1, but I was wondering if there's an automated way to do that. I've also considered creating the collection with replicationFactor=1 and when the second node comes up it will look for shards w/ one replica only, and assign themselves as the replica. But it means I have to own that piece of logic, where if Solr already does that, that's better. Also, from what I understand, if I create a collection w/ rf=2 and there are two nodes, then each node is assigned a replica. If one of the nodes comes down, and a 3rd node comes up, it will be assigned a replica -- is that correct? Another related question, if there are two replicas on node1 and node2, and node2 goes down -- will node1 be assigned the second replica as well? If this is explained somewhere, I'd appreciate if you can give me a pointer. Shai
