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From "Michael Gibney (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-12952) TFIDF scorer uses max docs instead of num docs when using Edismax
Date Thu, 01 Nov 2018 12:58:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-12952?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16671583#comment-16671583
] 

Michael Gibney commented on SOLR-12952:
---------------------------------------

[~moshebla], other than using TLOG/PULL replica types (as [~elyograg] suggests), you could
look into [statsCache (distributed IDF)|https://lucene.apache.org/solr/guide/7_5/distributed-requests.html#configuring-statscache-distributed-idf],
which basically does some post-calculation adjustment to normalize IDF across different shards.

> TFIDF scorer uses max docs instead of num docs when using Edismax
> -----------------------------------------------------------------
>
>                 Key: SOLR-12952
>                 URL: https://issues.apache.org/jira/browse/SOLR-12952
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: mosh
>            Priority: Major
>
> I have recently noticed some odd behavior while using the edismax query parser.
>  The scores returned by documents seem to be affected by deleted documents, which have
yet to be merged and completely removed from the index.
>  This causes different replicas to return different scores for the same query.
>  Is this a bug, or am I missing something?



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