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https://issues.apache.org/jira/browse/SOLR-4478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13711122#comment-13711122
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Erick Erickson commented on SOLR-4478:
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bq: we add an option at core creation time to use the configset as a template,
rather than sharing it, which copies the configset contents into the new core's
config directory
-1 as an initial reaction as stated. I _really_ don't want to have a command
that creates a mixed set of config sets and local-to-core configurations, if
they want that control they can do it manually. And the +1 below keeps things
more congruent with SolrCloud.
+1 if we change it slightly. Use a template, but copy it to the config set
directory with a new name and use _that_.
BTW, the tentative directory structure is
<solr_home>/configs/configset1
<solr_home>/configs/configset2
and so on, so copying from one to another should be straight-forward.
In fact it's an open question (at least to me) whether we support local-to-core
configurations in 5.0 or require config sets. We could support both, which is
used is controlled by the presence/absence of a "configName" parameter in the
core definition (<core now, but configName in core.properties)
> Allow cores to specify a named config set
> -----------------------------------------
>
> Key: SOLR-4478
> URL: https://issues.apache.org/jira/browse/SOLR-4478
> Project: Solr
> Issue Type: Improvement
> Affects Versions: 4.2, 5.0
> Reporter: Erick Erickson
> Assignee: Erick Erickson
> Attachments: SOLR-4478.patch, SOLR-4478.patch
>
>
> Part of moving forward to "the new way", after SOLR-4196 etc... I propose an
> additional parameter specified on the <core> node in solr.xml or as a
> parameter in the "discovery" mode core.properties file, call it configSet,
> where the value provided is a path to a directory, either absolute or
> relative. Really, this is as though you copied the conf directory somewhere
> to be used by more than one core.
> Straw-man: There will be a directory <solr_home>/configsets which will be the
> default. If the configSet parameter is, say, "myconf", then I'd expect a
> directory named "myconf" to exist in <solr_home>/configsets, which would look
> something like
> <solr_home>/configsets/myconf/schema.xml
> solrconfig.xml
> stopwords.txt
> velocity
> velocity/query.vm
> etc.
> If multiple cores used the same configSet, schema, solrconfig etc. would all
> be shared (i.e. shareSchema="true" would be assumed). I don't see a good
> use-case for _not_ sharing schemas, so I don't propose to allow this to be
> turned off. Hmmm, what if shareSchema is explicitly set to false in the
> solr.xml or properties file? I'd guess it should be honored but maybe log a
> warning?
> Mostly I'm putting this up for comments. I know that there are already
> thoughts about how this all should work floating around, so before I start
> any work on this I thought I'd at least get an idea of whether this is the
> way people are thinking about going.
> Configset can be either a relative or absolute path, if relative it's assumed
> to be relative to <solr_home>.
> Thoughts?
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