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From Jean-Sebastien Vachon <js.vac...@videotron.ca>
Subject Re: question about the fieldCollapseCache
Date Tue, 15 Jun 2010 11:43:07 GMT
They used to be in the branches if I recall correctly but you're right. They aren't there anymore.

Maybe someone else can explain why... it looks like they restructure the repository for the
Solr/lucene merge.

On 2010-06-15, at 4:54 AM, Rakhi Khatwani wrote:

> Hi,
>      I tried downloading solr 1.4.1 from the site. but it shows an empty
> directory. where did u get solr 1.4.1 from?
> 
> Regards,
> Raakhi
> 
> On Tue, Jun 8, 2010 at 10:35 PM, Jean-Sebastien Vachon <
> js.vachon@videotron.ca> wrote:
> 
>> Hi All,
>> 
>> I've been running some tests using 6 shards each one containing about 1
>> millions documents.
>> Each shard is running in its own virtual machine with 7 GB of ram (5GB
>> allocated to the JVM).
>> After about 1100 unique queries the shards start to struggle and run out of
>> memory. I've reduced all
>> other caches without significant impact.
>> 
>> When I remove completely the fieldCollapseCache, the server can keep up for
>> hours
>> and use only 2 GB of ram. (I'm even considering returning to a 32 bits JVM)
>> 
>> The size of the fieldCollapseCache was set to 5000 items. How can 5000
>> items eat 3 GB of ram?
>> 
>> Can someone tell me what is put in this cache? Has anyone experienced this
>> kind of problem?
>> 
>> I am running Solr 1.4.1 with patch 236. All requests are collapsing on a
>> single field (pint) and
>> collapse.maxdocs set to 200 000.
>> 
>> Thanks for any hints...
>> 
>> 


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