So If I want to use multi-value facet with NRT I'd need to convert the cache to 
per-segment? How do I do that?

Thanks.


________________________________
 From: Jason Rutherglen <jason.rutherg...@gmail.com>
To: solr-user@lucene.apache.org 
Sent: Saturday, July 7, 2012 11:32 AM
Subject: Re: Nrt and caching
 
The field caches are per-segment, which are used for sorting and basic
[slower] facets.  The result set, document, filter, and multi-value facet
caches are [in Solr] per-multi-segment.

Of these, the document, filter, and multi-value facet caches could be
converted to be [performant] per-segment, as with some other Apache
licensed Lucene based search engines.

On Sat, Jul 7, 2012 at 10:42 AM, Yonik Seeley <yo...@lucidimagination.com>wrote:

> On Sat, Jul 7, 2012 at 9:59 AM, Jason Rutherglen
> <jason.rutherg...@gmail.com> wrote:
> > Currently the caches are stored per-multiple-segments, meaning after each
> > 'soft' commit, the cache(s) will be purged.
>
> Depends which caches.  Some caches are per-segment, and some caches
> are top level.
> It's also a trade-off... for some things, per-segment data structures
> would indeed turn around quicker on a reopen, but every query would be
> slower for it.
>
> -Yonik
> http://lucidimagination.com
>

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