[Nepomuk] Fwd: Re: [Sesame] Huge memory use during LuceneSail load

[Sorin Gheoghiu]

Hello Nepomuk,

we are interested to use SesameSail but we encountered an issue. We sent 
yesterday an email to sesame discusssion list while we seek help to 
optimize it, but it seems the product is not further developed, although 
I noticed a newer LuceneSail version has been updated 10 months 
(https://github.com/kreuzverweis/lucene-sail-3.0).

Can you please confirm wheather the product is actively maintaned or 
not? If yes we are glad to work with you, otherwise we have to seek for 
alternatives.

Thanks and regards,
Sorin


-------- Original-Nachricht --------
Betreff: 	Re: [Sesame] Huge memory use during LuceneSail load
Datum: 	Wed, 15 May 2013 15:09:51 +1200
Von: 	Jeen Broekstra <jeen.broekstra at gmail.com>
Antwort an: 	Sesame discussion list <sesame-general at lists.sourceforge.net>
An: 	sesame-general at lists.sourceforge.net



On 15/05/13 05:59, Sorin Gheoghiu wrote:
> Hi,
>
> Our goal was to import around 10 milions triples using LuceneSail. We
> have Sesame 2.6.9, lucene-core 2.6.9 and lucenesail 2.1.0. We've
> expected that a lot of memory is needed, but what we experienced it was
> beyond our expectations, here the results:
> - using 64Gb the "Connection refused" error occured
> - with 96Gb the load has ended successfully
>
> See attached the memory performance graphs during the tests. We suspect
> a *memory leak *issue here... Is there any memory tuning or
> increase/decrease the entity index size? Also we have to know if
> lucenesail is still mantained and further developed, please clarify.

I am not personally involved in the LuceneSail development (it is a
project separate from Sesame, maintained by DFKI), but as far as I know
it is not actively maintained at the moment.

Regards,

Jeen

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