I am faceting on the single values only. I ran load test against solr app and 
found that under increased load the faceting just gets slower and slower. That 
is why I wanted to investigate filtercache and any other features to tweak the 
performance.
As suggested by Mark in the earlier email, I increased the size of filtercache 
and the performance has improved. I need to further test to see the impact on 
other areas.

Thanks,
Kalyan Manepalli

-----Original Message-----
From: Mark Miller [mailto:markrmil...@gmail.com] 
Sent: Thursday, June 18, 2009 9:15 AM
To: solr-user@lucene.apache.org
Subject: Re: FilterCache issue

Mark Miller wrote:
> Yonik Seeley wrote:
>> On Thu, Jun 18, 2009 at 8:35 AM, Mark Miller<markrmil...@gmail.com> 
>> wrote:
>>  
>>> Thats why I asked about multi-valued terms. If hes not using the enum
>>> faceting method (which only makes sense with fewer uniques), and the 
>>> fields
>>> are not multi-valued, than it is using the FieldCache method. Which of
>>> course does use the filterCache,
>>>     
>>
>> The FieldCache method for single-valued fields does not use the
>> filterCache... that's only for big terms on multi-valued fields.
>>
>> -Yonik
>> http://www.lucidimagination.com
>>   
> Ah, I think the wiki is incorrect then.
>
> SolrCaching
>
> If you use faceting with the fieldCache method (see 
> SolrFacetingOverview 
> <http://wiki.apache.org/solr/SolrFacetingOverview>), it is recommended 
> that you set the filterCache size to be greater than the number of 
> unique values in all of your faceted fields.
>

Thats some pretty misleading info. I was wondering how the heck the 
filterCache played into counting off a FieldCache.


-- 
- Mark

http://www.lucidimagination.com



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