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https://issues.apache.org/jira/browse/SOLR-221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12496374
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Yonik Seeley commented on SOLR-221:
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Yeah, facet.enum.cache.minDf seems reasonable (if a bit long).
> Might it not be useful to turn off term enum caching when the number of terms
> was above a certain maximum [...] trade cycles for memory
If one expects a really high number of terms, I think the right approach is to
pick a minDf to cut down the cache size (and trade cycles for memory). Also,
Solr doesn't currently know the number of terms in a field unless it's
traversed all of them.
> faceting memory and performance improvement
> -------------------------------------------
>
> Key: SOLR-221
> URL: https://issues.apache.org/jira/browse/SOLR-221
> Project: Solr
> Issue Type: Improvement
> Reporter: Yonik Seeley
> Assigned To: Yonik Seeley
> Attachments: facet.patch
>
>
> 1) compare minimum count currently needed to the term df and avoid
> unnecessary intersection count
> 2) set a minimum term df in order to use the filterCache, otherwise iterate
> over TermDocs
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