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From "Chris Toomey (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-4983) Problematic core naming by collection create API
Date Thu, 05 Dec 2013 16:32:35 GMT

    [ https://issues.apache.org/jira/browse/SOLR-4983?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13840238#comment-13840238
] 

Chris Toomey commented on SOLR-4983:
------------------------------------

Right, 2) is the real problem.  For 1) I doubt many would argue that "<collection_name>"
wouldn't be cleaner/prettier/less-surprising than "<collection_name>_shard<x>_replica<y>"
for the core names, but if that's not also achievable when addressing 2), that's fine..

> Problematic core naming by collection create API 
> -------------------------------------------------
>
>                 Key: SOLR-4983
>                 URL: https://issues.apache.org/jira/browse/SOLR-4983
>             Project: Solr
>          Issue Type: Bug
>          Components: SolrCloud
>            Reporter: Chris Toomey
>
> The SolrCloud collection create API creates cores named "foo_shard<x>_replica<y>"
when asked to create collection "foo".
> This is problematic for at least 2 reasons: 
> 1) these ugly core names show up in the core admin UI, and will vary depending on which
node is being used,
> 2) it prevents collections from being used in SolrCloud joins, since join takes a core
name as the fromIndex parameter and there's no single core name for the collection.  As I've
documented in https://issues.apache.org/jira/browse/SOLR-4905 and http://lucene.472066.n3.nabble.com/Joins-with-SolrCloud-tp4073199p4074038.html,
SolrCloud join does work when the inner collection (fromIndex) is not sharded, assuming that
collection is available and initialized at SolrCloud bootstrap time.
> Could this be changed to instead use the collection name for the core name?  Or at least
add a core-name option to the API?



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