I'm seeing some strange behavior with my garbage collector that disappears
when I turn off this optimization. I'm running load tests on my deployment.
For the first few minutes, everything is fine (and this patch does make
things faster - I haven't quantified the improvement yet). After that, the
garbage collector stops collecting. Specifically, the new generation part of
the heap is full, but never garbage collected, and the old generation is
emptied, then never gets anything more. This throttles Solr performance
(average response times that used to be ~500ms are now ~25s). 

I described my deployment scenario in an earlier post:
http://www.nabble.com/Throughput-Optimization-td20335132.html

Does it sound like the new faceting algorithm could be the culprit?


wojtekpia wrote:
> 
> Definitely, but it'll take me a few days. I'll also report findings on
> SOLR-465. (I've been on holiday for a few weeks)
> 
> 
> Noble Paul നോബിള്‍ नोब्ळ् wrote:
>> 
>> wojtek, you can report back the numbers if possible
>> 
>> It would be nice to know how the new impl performs in real-world
>> 
>> 
>> 
> 
> 

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