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From "Christine Poerschke (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-7766) support creation of a coreless collection
Date Fri, 31 Jul 2015 19:21:05 GMT

    [ https://issues.apache.org/jira/browse/SOLR-7766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14649679#comment-14649679
] 

Christine Poerschke commented on SOLR-7766:
-------------------------------------------

I agree re: the differentiation between {{createNodeSet}} missing and {{createNodeSet=}} present-and-empty
is very subtle. Would a special value e.g. {{createNodeSet=EMPTY}} be clearer?

The way i read [OverseerCollectionProcessor.java|https://github.com/apache/lucene-solr/blob/trunk/solr/core/src/java/org/apache/solr/cloud/OverseerCollectionProcessor.java]
line 2233 currently an empty parameter would result in an error, right? [Draft Collections
API docs|https://cwiki.apache.org/confluence/display/solr/Collections+API?src=search] list
'empty' as the default though (should it be 'blank box' as for 'async'?).

Will update github pull request against latest trunk (with createNodeSet=) shortly and definitely
hold off on any commits until agreement on how to request coreless collection creation is
reached.

> support creation of a coreless collection
> -----------------------------------------
>
>                 Key: SOLR-7766
>                 URL: https://issues.apache.org/jira/browse/SOLR-7766
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Christine Poerschke
>            Assignee: Christine Poerschke
>            Priority: Minor
>         Attachments: SOLR-7766.patch
>
>
> By supplying a deliberately empty create node set (via {{.../solr/admin/collections?action=CREATE&createNodeSet=&name=myCollection&...}})
the collection can be created in the usual manner but it will just not yet contain any cores
for any of its shards. Later on {{.../solr/admin/collections?wt=json&action=ADDREPLICA&collection=myCollection&...}}
calls can create cores as and when and where required.
> github pull request with proposed changes to follow.



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