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From "Elaine Cario (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SOLR-7951) LBHttpSolrClient wraps ALL exceptions in "No live SolrServers available to handle this request" exception, even usage errors
Date Thu, 20 Aug 2015 16:01:45 GMT
Elaine Cario created SOLR-7951:
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             Summary: LBHttpSolrClient wraps ALL exceptions in "No live SolrServers available
to handle this request" exception, even usage errors
                 Key: SOLR-7951
                 URL: https://issues.apache.org/jira/browse/SOLR-7951
             Project: Solr
          Issue Type: Bug
          Components: SolrJ
    Affects Versions: 5.2.1
            Reporter: Elaine Cario
            Priority: Minor


We were experiencing many "No live SolrServers available to handle this request" exception,
even though we saw no outages with any of our servers.  

It turned out the actual exceptions were related to the use of wildcards in span queries (and
in some cases other invalid queries or usage-type issues). Traced it back to LBHttpSolrClient
which was wrapping all exceptions, even plain SolrExceptions, in that outer exception.  

Instead, wrapping in the out exception should be reserved for true communication issues in
SolrCloud, and usage exceptions should be thrown as is.



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