[jira] [Commented] (SOLR-7759) DebugComponent's explain should be implemented as a distributed query

["Jan Høydahl (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-7759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17049269#comment-17049269 ] 

Jan Høydahl commented on SOLR-7759:
-----------------------------------

Is this still an issue? I am starting to look into distributed stats for a cluster but currently in research phase. This seems a bit prohibitive to debugging..

> DebugComponent's explain should be implemented as a distributed query
> ---------------------------------------------------------------------
>
>                 Key: SOLR-7759
>                 URL: https://issues.apache.org/jira/browse/SOLR-7759
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Varun Thacker
>            Priority: Major
>         Attachments: SOLR_7759.patch
>
>
> Currently when we use debugQuery to see the explanation of the matched documents, the query fired to get the statistics for the matched documents is not a distributed query.
> This is a problem when using distributed idf. The actual documents are being scored using the global stats and not per shard stats , but the explain will show us the score by taking into account the stats from the shard where the document belongs to.
> We should try to implement the explain query as a distributed request so that the scores match the actual document scores.



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