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

[Sorin Gheoghiu]

Hey Vishesh,

Thank you for your answer, there is no problem to store triples within 
Sesame, but to add the index via SesameSail.
Regarding Virtuoso, it seems only OWLIM-SE and OWLIM-Enterprise support 
full-text search, but they are not for free, thus we are not interested.

Thank you,
Sorin


Am 16.05.2013 12:06, schrieb Vishesh Handa:
>
> Hey Sorin
>
> On Wed, May 15, 2013 at 12:19 PM, Sorin Gheoghiu 
> <sorin.gheorghiu at uni-konstanz.de 
> <mailto:sorin.gheorghiu at uni-konstanz.de>> wrote:
>
>     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.
>
>
> This mailing list is for the nepomuk-kde project, which is not 
> affiliated with DFKI.
>
> About 4 years back we did try to use Sesame, but we eventually moved 
> to OpenLink's virtuoso[1] in order to store triples. It has worked 
> quite well, and can easily store 10 million triples.
>
> [1] http://virtuoso.openlinksw.com/
>
>
>     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>
>     <mailto:jeen.broekstra at gmail.com>
>     Antwort an: 	Sesame discussion list
>     <sesame-general at lists.sourceforge.net>
>     <mailto:sesame-general at lists.sourceforge.net>
>     An: 	sesame-general at lists.sourceforge.net
>     <mailto: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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>
> -- 
> Vishesh Handa


-- 
Sorin Gheorghiu             Tel: +49 7531 88-3198
Universität Konstanz        Raum: B703
78464 Konstanz              sorin.gheorghiu at uni-konstanz.de

- Bibliothek: IT-Abteilung -


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