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https://issues.apache.org/jira/browse/SOLR-12889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16658017#comment-16658017
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Shawn Heisey commented on SOLR-12889:
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I'm really liking the idea of adding a LIST action. That would allow us to
have the same commit for all branches. Optionally, we could deprecate STATUS
and remove it in the next major version, with LIST as the replacement.
> Clean up CoreAdmin behavior and responses when acting on cores that failed to
> initialize
> ----------------------------------------------------------------------------------------
>
> Key: SOLR-12889
> URL: https://issues.apache.org/jira/browse/SOLR-12889
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Affects Versions: 7.5
> Reporter: Shawn Heisey
> Priority: Minor
>
> Solr isn't behaving quite correctly when performing CoreAdmin actions on
> cores that exist, but failed to initialize.
> * RELOAD works. That was made possible by SOLR-10021.
> * UNLOAD works, and can even delete directories if asked to.
> * RENAME works, but Solr must be restarted for the admin UI to reflect the
> new name in the "SolrCore Initialization Failures" message.
> * SWAP doesn't actually work, but returns a response that *LOOKS* like it
> worked.
> I didn't try the other actions, because it doesn't really make any sense to
> allow those on a core that failed.
> What I see as things that need to be checked or implemented when acting on
> failed cores:
> * SWAP
> ** Fail fast.
> ** OR make it work properly. If we choose this, adjust the core name in the
> initFailures part of the STATUS response.
> * RENAME
> ** Fail fast.
> ** OR make it work properly. If we choose this, adjust the core name in the
> initFailures part of the STATUS response.
> * UNLOAD
> ** This looks like it behaves correctly. Tried it with
> deleteInstanceDir=true and it did wipe out the whole core.
> * Other actions not already mentioned
> ** Fail fast
> Something else to consider: Get rid of the initFailures part of the STATUS
> response. List all cores, even those that failed. Include a boolean item in
> the response to indicate whether initialization succeeded, and only list some
> of the full information for a failed core. This would make implementing
> SOLR-12863 easier.
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