This feels like more work than necessary, especially the bit: "which will require modification in Solr code".
If your needs are to co-locate various groups of documents on specific nodes, composite id (the default) routing has the ability to cluster docs together, see: https://lucene.apache.org/solr/guide/6_6/shards-and-indexing-data-in-solrcloud.html the "document routing" section. You can also route queries to those shards only, see: https://lucidworks.com/2013/06/13/solr-cloud-document-routing/ If that isn't sufficient, using "implicit" routing allows you to send document to specific shards. True, in both cases the _client_ has to assign the doc to a particular shard based on whatever criteria you need, but that seems like less work than changing Solr code. Best, Erick On Tue, Jul 31, 2018 at 5:20 PM, Nawab Zada Asad Iqbal <khi...@gmail.com> wrote: > Thanks Erick > > > This is for future. I am exploring to use a custom sharding scheme (which > will require modification in Solr code) together with the benefits of > SolrCloud. > > > > Thanks > Nawab > > > > On Tue, Jul 31, 2018 at 4:51 PM, Erick Erickson <erickerick...@gmail.com> > wrote: > >> Sure, just use the Collections API ADDREPLICA command to add as many >> replicas for specific shards as you want. There's no way to specify >> that at creation time though. >> >> Some of the new autoscaling can do this automatically I believe. >> >> I have to ask what it is about your collection that this is true. If >> you're using the default composite id routing having one shard get >> substantially more queries than the others is unexpected. >> >> If you're using implicit routing then it's perfectly understandable. >> >> Best, >> Erick >> >> On Tue, Jul 31, 2018 at 4:12 PM, Nawab Zada Asad Iqbal <khi...@gmail.com> >> wrote: >> > Hi, >> > >> > I am looking at Solr 7.x and couldn't find an answer in the >> documentation. >> > Is it possibly to specify different replicationFactor for different >> shards >> > in same collection? E.g. if a certain shard is receiving more queries >> than >> > rest of the collection I would like to add more replicas for it to help >> > with the query load. >> > >> > >> > >> > Thanks >> > Nawab >>
