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https://issues.apache.org/jira/browse/SOLR-17816?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18055021#comment-18055021
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David Smiley commented on SOLR-17816:
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Possible implementation approach: introduce a server level root/base configSet
from which all other configSets conceptually layer on top of. While it's more
limited than flexible inheritance (multi-layer, put in ZK); I think it
addresses the typical use-cases. And it doesn't close the door on the latter
either. Would need a mechanism to synthesize a virtual solrconfig.xml (XML
DOM) from another "base" one. Similarly for a schema.
Eliminate ImplicitPlugins.json as redundant with the root/base configSet.
> ConfigSet inheritance / layering
> --------------------------------
>
> Key: SOLR-17816
> URL: https://issues.apache.org/jira/browse/SOLR-17816
> Project: Solr
> Issue Type: New Feature
> Reporter: David Smiley
> Priority: Major
>
> It ought to be possible to layer one configSet on top of another (i.e.
> inherit another). The primary point is to avoid duplication of files between
> collections. Even though the schema & config might likely be different, use
> of xinclude could share some sections of both.
> Limitations: can't delete/mask files from the parent configSet. Not a big
> deal.
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