[jira] Commented: (SOLR-221) faceting memory and performance improvement

["Hoss Man (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12495204 ] 

Hoss Man commented on SOLR-221:
-------------------------------

it might be worth trying to clarify if the performance cliff really results from being *optimized* or if it's just a result of one of the two traits of an optimized index: being a single segment, having no deletions.

tuning the behavior based on either of those traits is just as easy as tuning based on both traits.


Minor point: if we're going to add facet config options, i'd prefer they stay as standard standard SolrParms that can be defaulted i the handler config (and theoretically overridden per request)  it just seems cleaner to have all options in one place, and there's not a lot of reason not to when dealing with options tha don't *need8 to be identicle for every request.

> 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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