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https://issues.apache.org/jira/browse/SOLR-1875?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yonik Seeley updated SOLR-1875:
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Attachment: SOLR-1875.patch
Here's the first cut - seems to work fine.
You can try it out with facet.method=fcs (the extra "s" can either stand for
the plural, since there are multiple field caches, or for segment).
I haven't introduced a way to limit the number of threads used... it's
currently one per segment.
I'm thinking of a local param named "threads" for that.
Note: this will probably only make sense in NRT scenarios. It will take up
more memory for the field caches, more memory per-request for the accumulator
arrays, and more CPU since an additional merge step is needed. One possible
side benefit is a reduction in field cache memory (due to field cache insanity
- per-segment and whole-index field caches both being populated).
> per-segment single valued string faceting
> -----------------------------------------
>
> Key: SOLR-1875
> URL: https://issues.apache.org/jira/browse/SOLR-1875
> Project: Solr
> Issue Type: New Feature
> Affects Versions: 3.1
> Reporter: Yonik Seeley
> Assignee: Yonik Seeley
> Attachments: SOLR-1875.patch
>
>
> A little stepping stone to NRT:
> Per-segment single-valued string faceting using the Lucene FieldCache.
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