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From "Patrick O'Lone" <pol...@townnews.com>
Subject Re: facet.method=fcs vs facet.method=fc on solr slaves
Date Thu, 05 Dec 2013 14:40:17 GMT
So does it make the most sense then to force, by default,
facet.method=fcs on slave nodes that receive updates every 5 minutes but
with large segments that don't change every update? Right now,
everything I have configured uses facet.method=fc since we don't declare
it at all.

Randomly, after replication, I have several threads that will hang on
reading data from field cache and I'm trying to think of things I can do
to mitigate that. Thanks for the info.

> Hello Patrick,
> 
> Replication flushes UnInvertedField cache that impacts fc, but doesn't
> harm Lucene's FieldCache which is for fcs. You can check how much time
> in millis is spend on UnInvertedField cache regeneration in INFO logs like
> "UnInverted multi-valued field ....,time=### ..."
> 
> 
> On Thu, Dec 5, 2013 at 12:15 AM, Patrick O'Lone <polone@townnews.com
> <mailto:polone@townnews.com>> wrote:
> 
>     Is there any advantage on a Solr slave to receive queries using
>     facet.method=fcs instead of the default of facet.method=fc? Most of the
>     segment files are unchanged between replication events - but I wasn't
>     sure if replication would cause the unchanged segment field caches to be
>     lost anyway.
>     --
>     Patrick O'Lone
>     Director of Software Development
>     TownNews.com
> 
>     E-mail ... polone@townnews.com <mailto:polone@townnews.com>
>     Phone .... 309-743-0809
>     Fax ...... 309-743-0830
> 
> 
> 
> 
> -- 
> Sincerely yours
> Mikhail Khludnev
> Principal Engineer,
> Grid Dynamics
> 
> <http://www.griddynamics.com>
> <mailto:mkhludnev@griddynamics.com>


-- 
Patrick O'Lone
Director of Software Development
TownNews.com

E-mail ... polone@townnews.com
Phone .... 309-743-0809
Fax ...... 309-743-0830

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