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https://issues.apache.org/jira/browse/SOLR-15787?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17645532#comment-17645532
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David Smiley commented on SOLR-15787:
-------------------------------------
FileSystemConfigSetService already exists; you separated it out in SOLR-15258
in April 2021. It was partially implemented, essentially only most of the
read-only aspects and that's it. This issue is about implementing the rest of
it (i.e. mutable operations). What practical effect does this have for those
not looking at Solr internal details (which is what this abstraction is)?
Based on a bit of spot-checking of internals, I suspect this has no use to a
Solr standalone user since the [ConfigSet
API|https://solr.apache.org/guide/solr/latest/configuration-guide/configsets-api.html]
(which is basically the only caller of those mutable operations) is only
enabled SolrCloud (that I did check manually).
A SolrCloud user could configure their ConfigSetService in solr.xml to be this
FileSystemConfigSetService, even before this change (I think). I think what's
new is that the ConfigSet API, particularly copying and uploading configs and
deleting configs would work so long as the file system location held for the
config is modifiable by Solr. Of course it wouldn't make sense to do this
unless maybe a shared file system is in use. In addition to that API,
sometimes when Solr creates a collection with an unspecified configSet, it will
end up copying the default one or some other one using the AUTOCREATED suffix.
That would have failed but should now work. I haven't tried it.
> Implement FileSystemConfigSetService
> ------------------------------------
>
> Key: SOLR-15787
> URL: https://issues.apache.org/jira/browse/SOLR-15787
> Project: Solr
> Issue Type: Improvement
> Reporter: Nazerke Seidan
> Priority: Minor
> Time Spent: 3h 20m
> Remaining Estimate: 0h
>
> Implement FileSystemConfigSetService to upload/download/delete/list configset
> to/from local filesystem
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