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

["Alessandro Benedetti (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-7759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15842774#comment-15842774 ] 

Alessandro Benedetti edited comment on SOLR-7759 at 1/27/17 2:16 PM:
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I didn't try it yet, but would this Naive approach work ?

org/apache/solr/handler/component/QueryComponent.java:318

if ((purpose & ShardRequest.PURPOSE_SET_TERM_STATS) != 0 || (purpose & ShardRequest.PURPOSE_GET_DEBUG) != 0) {
      // retrieve from request and update local cache
      statsCache.receiveGlobalStats(req);
    }

I will investigate further

P.S. investigating more, of course is not that easy, sorry for the simplistic approach


was (Author: alessandro.benedetti):
I didn't try it yet, but would this Naive approach work ?

org/apache/solr/handler/component/QueryComponent.java:318

if ((purpose & ShardRequest.PURPOSE_SET_TERM_STATS) != 0 || (purpose & ShardRequest.PURPOSE_GET_DEBUG) != 0) {
      // retrieve from request and update local cache
      statsCache.receiveGlobalStats(req);
    }

I will investigate further

> 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
>
> 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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