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https://issues.apache.org/jira/browse/SOLR-12863?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16658012#comment-16658012
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Shawn Heisey commented on SOLR-12863:
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I've been trying to decipher the javascript and html for the admin UI and it is
proving to be difficult. My javascript knowledge is only a little bit past
beginner.
The CoreAdmin API action STATUS does return the names of cores that fail to
initialize, in an "initFailures" section. I've been doing some tests to see
what actions can be taken on failed cores, and filed SOLR-12889 for cleaning
that up.
> Provide a way in the admin UI to reload cores that failed to start
> ------------------------------------------------------------------
>
> Key: SOLR-12863
> URL: https://issues.apache.org/jira/browse/SOLR-12863
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: Admin UI
> Affects Versions: 7.5
> Reporter: Shawn Heisey
> Priority: Major
> Labels: newdev
>
> Imagine a situation where a core fails to load because there's some kind of
> minor problem with the configuration for the core/collection.
> Once you've fixed whatever caused the core to fail, there is no way provided
> in the admin UI to reload the core so it will start working. The CoreAdmin
> API can be accessed directly to initiate the RELOAD action, if the user is
> able to figure out how to do that. Restarting the entire node would take
> care of it, potentially with major disruption.
> It would be really good to have cores that fail to initialize show up in the
> CoreAdmin section of the admin UI, in a different color and with some kind of
> visual indicator for the color blind, with a limited set of options that
> includes RELOAD.
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