I believe a server will always try to prefer local cores. Can you do an experiment with 3 nodes, and send http queries to the node not hosting any replicas? That should confirm the balanced distribution.
If you have multiple shards, the receiving server will forward the requests for shards it doesn’t have, but would still prefer local shards when they are available. On Wed, Mar 10, 2021 at 8:00 AM Jan Høydahl <jan....@cominvent.com> wrote: > Hi, > > A client has a SolrCloud 8.4 setup with two nodes, and one collection with > one shard and replicationFactor=2. > Of course we want search traffic to be evenly distributed between the two > replicas. > The client is using plain HTTP requests, no SolrJ or anything fancy, and > sends all requests to one of the two nodes. > I was expecting Solr to forward about 50% of those requests to the other > replica, but it is serving them all locally. > > I know we can setup an LB in front or re-program the client to do round > robin, but that is not my question. > Is the select-random-replica logic only active when we have a sharded > oollection, and not for a single-shard? > > Jan
