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From Dotan Cohen <dotanco...@gmail.com>
Subject Re: Out of memory on some faceting queries
Date Tue, 02 Apr 2013 14:36:51 GMT
On Tue, Apr 2, 2013 at 5:33 PM, Toke Eskildsen <te@statsbiblioteket.dk> wrote:
> On Tue, 2013-04-02 at 15:55 +0200, Dotan Cohen wrote:
>
> [Tokd: maxWarmingSearchers limit exceeded?]
>
>> Thank you Toke, this is exactly on my "list of things to learn about
>> Solr". We do get the error mentioned and we cannot reduce the amount
>> of commits. Also, I do believe that we have the necessary server
>> resources (16 GiB RAM).
>
> Memory does not help you if you commit too frequently. If you commit
> each X seconds and warming takes X+Y seconds, then you will run out of
> memory at some point.
>
>> I have increased maxWarmingSearchers to 4, let's see how this goes.
>
> If you still get the error with 4 concurrent searchers, you will have to
> either speed up warmup time or commit less frequently. You should be
> able to reduce facet startup time by switching to segment based faceting
> (at the cost of worse search-time performance) or maybe by using
> DocValues. Some of the current threads on the solr-user list is about
> these topics.
>
> How often do you commit and how many unique values does your facet
> fields have?
>
> Regards,
> Toke Eskildsen
>



-- 
Dotan Cohen

http://gibberish.co.il
http://what-is-what.com

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