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From "Mark Miller (Commented) (JIRA)" <>
Subject [jira] [Commented] (SOLR-1632) Distributed IDF
Date Wed, 02 Nov 2011 21:59:33 GMT


Mark Miller commented on SOLR-1632:

Recently I updated this patch to trunk and got rid of the threadlocal usage and Query rewriting
that was the reason we had to pull this from trunk long ago - then I attempted to override
stats on IndexSearcher with global stats - this is when I realized that had no affect on scoring
anymore - this will now be addressed LUCENE-3555. Unfortunately, I didn't pay attention and
lost that code. It's unfortunate, because it would have been a nice head start on this issue
- I think we may want to make other changes/improvements, but would have been a start with
something working. It was a half pain to do since the patch has to be manually applied, but
perhaps doing it a second time is faster...
> Distributed IDF
> ---------------
>                 Key: SOLR-1632
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>    Affects Versions: 1.5
>            Reporter: Andrzej Bialecki 
>         Attachments: distrib-2.patch, distrib.patch
> Distributed IDF is a valuable enhancement for distributed search across non-uniform shards.
This issue tracks the proposed implementation of an API to support this functionality in Solr.

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