[jira] [Created] (SOLR-4663) Log an error if more than one core points to the same data dir.

["Erick Erickson (JIRA)" <ji...@apache.org>]

Erick Erickson created SOLR-4663:
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             Summary: Log an error if more than one core points to the same data dir.
                 Key: SOLR-4663
                 URL: https://issues.apache.org/jira/browse/SOLR-4663
             Project: Solr
          Issue Type: Improvement
    Affects Versions: 4.3, 5.0
            Reporter: Erick Erickson
            Assignee: Erick Erickson
            Priority: Minor


In large multi-core setups, having mistakes whereby two or more cores point to the same data dir seems quite possible. We should at least complain very loudly in the logs if this is detected.

Should be a very straightforward check at core discovery time.

Is this serious enough to keep Solr from coming up at all?

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