[jira] [Created] (SOLR-6532) Possibility to return an error immediately from ping handler if no searcher is available

["Ere Maijala (JIRA)" <ji...@apache.org>]

Ere Maijala created SOLR-6532:
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             Summary: Possibility to return an error immediately from ping handler if no searcher is available
                 Key: SOLR-6532
                 URL: https://issues.apache.org/jira/browse/SOLR-6532
             Project: Solr
          Issue Type: Improvement
          Components: search
    Affects Versions: 4.10
         Environment: Load-balanced service
            Reporter: Ere Maijala
            Priority: Minor


Especially in a load-balanced environment it would be useful if it was possible to configure PingRequestHandler to return right away with an error status when a searcher is not (yet) available. This would allow the load-balancer to quickly fail over to a Solr instance that's able to serve the requests.

Currently the ping handler waits for the searcher to become available, which means the load-balancer has to either keep waiting or use a suitably short timeout, which is difficult to define in a way that provides a timely failover without false negatives.



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