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https://issues.apache.org/jira/browse/SOLR-8589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15448491#comment-15448491
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Jan Høydahl commented on SOLR-8589:
-----------------------------------

bq. If we do this, do you think there is going to be confusion between when to 
use CollectionAdminParams.COLLECTION and CollectionAdminParams.COLLECTIONS? 
That's the only potential downside that I can see.

Thinking about it, perhaps it is better to skip this detailed control of what 
to list. Keep things simple. We add a section to the LIST XML response. It is 
generally useful, it is not huge in size, and no real benefit to be able to 
turn it on or off imo.

{quote}
bq. Also, I think we should return aliases by default.
I don't know if there is anybody out there that has some kind of monitoring 
script set up to parse the result of LIST, and in general I try to be super 
conservative about changing APIs. Maybe we default to returning them in 7.0, 
and not returning them in 6.x? That sounds like a fair compromise to me.
{quote}

This is XML, and we *add* a new XML node, not changing anything of the 
existing. Any XML parser used to retrieve the {{<arr name="collections">}} 
would still work exactly as before. So even if someones script breaks, that 
will still not be a bug on our parts, this is not a back-compat break.

I can take a stab at simplifying the patch :)

> Add aliases to the LIST action results in the Collections API
> -------------------------------------------------------------
>
>                 Key: SOLR-8589
>                 URL: https://issues.apache.org/jira/browse/SOLR-8589
>             Project: Solr
>          Issue Type: Improvement
>          Components: SolrCloud
>    Affects Versions: 5.4.1
>            Reporter: Shawn Heisey
>            Assignee: Shawn Heisey
>            Priority: Minor
>         Attachments: SOLR-8589.patch, SOLR-8589.patch, SOLR-8589.patch, 
> SOLR-8589.patch, solr-8589-new-list-details-aliases.png
>
>
> Although it is possible to get a list of SolrCloud aliases vi an HTTP API, it 
> is not available as a typical query response, I believe it is only available 
> via the http API for zookeeper.
> The results from the LIST action in the Collections API is well-situated to 
> handle this. The current results are contained in a "collections" node, we 
> can simply add an "aliases" node if there are any aliases defined.



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