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https://issues.apache.org/jira/browse/SOLR-14451?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Munendra S N updated SOLR-14451:
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    Attachment: SOLR-14451.patch

> debug=query does not reliably ensure json.facet debug info returned in cloud 
> clusters
> -------------------------------------------------------------------------------------
>
>                 Key: SOLR-14451
>                 URL: https://issues.apache.org/jira/browse/SOLR-14451
>             Project: Solr
>          Issue Type: Bug
>          Components: Facet Module, SolrCloud
>            Reporter: Chris M. Hostetter
>            Priority: Major
>         Attachments: SOLR-14451.patch
>
>
> While working on a randomized cloud test in SOLR-13132 that needs to inspect 
> the {{"facet-trace"}} debug output to inspect the processor used (among other 
> details), i discovered that {{FacetModule}} would not reliably initialize the 
> {{FactDebugInfo}} container when using {{debug=query}} in the request.
> AFAICT, it *does* appear to always track & return facet debugging info when 
> using {{debug=true}} instead - but i haven't rigerously proved this.
> Under the covers, {{FacetModule}} is just checking 
> {{ResponseBuilder.isDebug()}} - an old "back compat" API for components to 
> check before we started breaking down multiple types of "debug" info - that 
> should return true anytime {{debug=query}} is set, so there is really no 
> logical reason why this shouldn't work... it's got to be a bug somewhere (it 
> doesn't seem tied to the request, but does break on diff randomized indexes, 
> so perhaps it's related to the document/bucket distribution? or maybe 
> something more low level and unrelated to FacetModule at all?)
> ----
> It only seems to be a problem in cloud mode - i haven't observed 
> FacetModule's debug output behave any differently between {{debug=query}} vs 
> {{debug=true}} in single node mode.



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