[jira] [Created] (SOLR-12889) Clean up CoreAdmin behavior and responses when acting on cores that failed to initialize

["Shawn Heisey (JIRA)" <ji...@apache.org>]

Shawn Heisey created SOLR-12889:
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             Summary: 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


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.
 * 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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