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https://issues.apache.org/jira/browse/SOLR-3633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13675265#comment-13675265
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Aaron Greenspan commented on SOLR-3633:
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Mark,
Perhaps it doesn't crash in that it doesn't throw a segmentation fault, but it
does throw a Java exception and then stops working, which for a novice user
like me means that there is no way to go back and add a core (since the only
way I'd know how to do it is through the web UI)--the only way to fix it. And
even if there was such a way to add a core, I'd run into issue 4461, and not be
able to anyway.
Aaron
> web UI reports an error if CoreAdminHandler says there are no SolrCores
> -----------------------------------------------------------------------
>
> Key: SOLR-3633
> URL: https://issues.apache.org/jira/browse/SOLR-3633
> Project: Solr
> Issue Type: Bug
> Components: web gui
> Affects Versions: 4.0-ALPHA
> Reporter: Hoss Man
> Assignee: Stefan Matheis (steffkes)
> Fix For: 4.4
>
> Attachments: SOLR-3633.patch, SOLR-3633.patch
>
>
> Spun off from SOLR-3591...
> * having no SolrCores is a valid situation
> * independent of what may happen in SOLR-3591, the web UI should cleanly deal
> with there being no SolrCores, and just hide/grey out any tabs that can't be
> supported w/o at least one core
> * even if there are no SolrCores the core admin features (ie: creating a new
> core) should be accessible in the UI
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