Thank you both, those are exactly what I was looking for! If I'm reading it right, if I specify a "-Dvmhost=foo" when starting SolrCloud, and then specify a snitch rule like this when creating the collection:
sysprop.vmhost:*,replica:<2 then this would ensure that on each vmhost there is at most one replica. I'm assuming that a shard leader and a replica are both treated as replicas in this scenario. Thanks Tom On Mon, Feb 1, 2016 at 8:34 PM, Erick Erickson <erickerick...@gmail.com> wrote: > See the createNodeset and node parameters for the Collections API CREATE and > ADDREPLICA commands, respectively. That's more a manual process, there's > nothing OOB but Jeff's suggestion is sound. > > Best, > Erick > > > > On Mon, Feb 1, 2016 at 11:00 AM, Jeff Wartes <jwar...@whitepages.com> wrote: >> >> You could write your own snitch: >> https://cwiki.apache.org/confluence/display/solr/Rule-based+Replica+Placement >> >> Or, it would be more annoying, but you can always add/remove replicas >> manually and juggle things yourself after you create the initial collection. >> >> >> >> >> On 2/1/16, 8:42 AM, "Tom Evans" <tevans...@googlemail.com> wrote: >> >>>Hi all >>> >>>We're setting up a solr cloud cluster, and unfortunately some of our >>>VMs may be physically located on the same VM host. Is there a way of >>>ensuring that all copies of a shard are not located on the same >>>physical server? >>> >>>If they do end up in that state, is there a way of rebalancing them? >>> >>>Cheers >>> >>>Tom