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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