[jira] [Commented] (SOLR-13329) Placing exact number of replicas on a set of solr nodes, instead of each solr node.

["Amrit Sarkar (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-13329?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16794862#comment-16794862 ] 

Amrit Sarkar commented on SOLR-13329:
-------------------------------------

Hi [~noble.paul], wondering if you have thoughts on this on how we can achieve this. Thanks in advance.

> Placing exact number of replicas on a set of solr nodes, instead of each solr node.
> -----------------------------------------------------------------------------------
>
>                 Key: SOLR-13329
>                 URL: https://issues.apache.org/jira/browse/SOLR-13329
>             Project: Solr
>          Issue Type: Improvement
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: AutoScaling
>    Affects Versions: master (9.0)
>            Reporter: Amrit Sarkar
>            Priority: Major
>
> Let's say we have a requirement where we would like to place:
> {code}
> exact X replica on a set of solr nodes comprises of solr-node-1, solr-node-2, ... solr-node-N.
> {code}
> e.g. exact 1 replica on either of the respective 3 solr nodes, solr-node-1, solr-node-2, solr-node-3, and rest of the replicas can be placed on corresponding solr nodes.
> Right now we don't have a straightforward manner of doing the same. Autoscaling cluster policy also doesn't support such behavior, but instead takes an array of solr node names and treat them as separate rules as per https://lucene.apache.org/solr/guide/7_7/solrcloud-autoscaling-policy-preferences.html#sysprop-attribute.



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