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https://issues.apache.org/jira/browse/SOLR-7951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14707210#comment-14707210
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Edward Ribeiro commented on SOLR-7951:
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Yeah, you right. I couldn't think of a better test to include. :(
> 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
> Attachments: SOLR-7951-4.x.patch, SOLR-7951.patch
>
>
> 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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