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From Erick Erickson <>
Subject Re: SolrCloud: Different replicationFactor for different shards in same collection
Date Tue, 31 Jul 2018 23:51:37 GMT
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.


On Tue, Jul 31, 2018 at 4:12 PM, Nawab Zada Asad Iqbal <> 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

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