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https://issues.apache.org/jira/browse/SOLR-6039?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13989841#comment-13989841
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ASF subversion and git services commented on SOLR-6039:
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Commit 1592605 from [email protected] in branch 'dev/trunk'
[ https://svn.apache.org/r1592605 ]
SOLR-6039: fixed debug output when no results in response
> debug=track causes debug=query info to be suppressed when no results found
> --------------------------------------------------------------------------
>
> Key: SOLR-6039
> URL: https://issues.apache.org/jira/browse/SOLR-6039
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.7
> Reporter: Hoss Man
> Attachments: SOLR-6039.patch, SOLR-6039.patch, SOLR-6039.patch,
> SOLR-6039.patch
>
>
> Shamik Bandopadhyay noted on the mailing list that debugQuery=true wasn't
> returning info about how the query was being parsed in SolrCloud.
> Steps to reproduce...
> * startup a simple 2 shard solr cluster using the example configs
> * Load this URL:
> ** http://localhost:8983/solr/select?q=Foo&debug=query
> ** note that the debug=query causes a debug block including "parsedquery"
> showing "title:foo"
> * Load either of these URLs:
> ** http://localhost:8983/solr/select?q=Foo&debug=query&debug=track
> ** http://localhost:8983/solr/select?q=Foo&debugQuery=true (legacy short hand
> option for enabling all debug options)
> ** Note that the debug block exists, but *only* includes the distributed
> "track" options - the query parsing debugging info is not available
> * index the sample data (java -jar post.jar *.xml)
> * Load either of these URLs:
> ** http://localhost:8983/solr/select?q=Solr&debugQuery=true&fl=id
> ** http://localhost:8983/solr/select?q=Solr&debug=query&debug=track&fl=id
> ** Note that now we have at least one matching doc, and the parsedquery info
> is included in the debug block along with the tracking info
> * Load either of these URLs:
> ** http://localhost:8983/solr/select?q=Solr&debug=query&debug=track&rows=0
> ** http://localhost:8983/solr/select?q=Solr&debug=query&debug=track&rows=0
> ** Note: even though we have a matching doc, since rows=0 prevents it from
> being returned, the parsedquery debug info again no longer works - just the
> track debug info
> ----
> The work around, for people who want don't care about the newer "debug
> tracking" and what the same debug information as pre-4.7, is to enumerate the
> debug options (ie: {{debug=query&debug=timing&debug=results}}) instead of
> relying on the shorthand: {{debugQuery=true}}
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