On 6/10/19 10:54 AM, Guillaume Lederrey wrote:
- Virtuoso has
proven quite useful. I don't want to advertise here, but the thing they have going for
DBpedia uses ridiculous hardware, i.e. 64GB RAM and it is also the OS version, not the
professional with clustering and repartition capability. So we are playing the game since
ten years now: Everybody tries other databases, but then most people come back to
virtuoso. I have to admit that OpenLink is maintaining the hosting for DBpedia themselves,
so they know how to optimise. They normally do large banks as customers with millions of
write transactions per hour. In LOD2 they also implemented column store features with
MonetDB and repartitioning in clusters.
I'm not entirely sure how to read the
above (and a quick look at
virtuoso website does not give me the answer either), but it looks
like the sharding / partitioning options are only available in the
enterprise version. That probably makes it a non starter for us.
Virtuoso Cluster Edition is as described by Sebastian in an earlier post
to this thread [1]. Online that's behind our LOD Cloud cache which hosts
40 Billion+ triples, but still using ridiculously cheap hard-ware for
the share-nothing cluster.
As Jerven has already articulated [2], the single-server open source
edition of Virtuoso can also scale to 40 Billion+ triples as
demonstrated by Uniprot amongst others.
There's a publicly available Google Spreadsheet that provides insights
into a variety of Virtuoso configurations that you can also look at
regarding resource requirements [3].
Bottom line, Virtuoso has no fundamental issues with performance, scale,
or security (most haven't hit this bump yet, but its coming!) regarding
RDF-data deployed in line with Linked Data principles.
We are always opened to collaboration with anyone (or group) seeking to
fully exploit the power and promise of a Semantic Web derived from
Linked Data :)
Links:
[1]
https://lists.wikimedia.org/pipermail/wikidata/2019-June/013132.html
-- Sebastian Hellman comment
[2]
https://lists.wikimedia.org/pipermail/wikidata/2019-June/013143.html
-- Jerven Bolleman comment
[3]
https://docs.google.com/spreadsheets/d/1-stlTC_WJmMU3xA_NxA1tSLHw6_sbpjff-5…
<https://docs.google.com/spreadsheets/d/1-stlTC_WJmMU3xA_NxA1tSLHw6_sbpjff-5OITtrbFw/edit?ouid=112399767740508618350&usp=sheets_home&ths=true>
-- Virtuoso configurations sample spreadsheet
[4]
https://hub.docker.com/u/openlink/ -- Docker Hub offerings
[5]
https://aws.amazon.com/marketplace/pp/B00ZWMSNOG -- Amazon
Marketplace BYOL Edition
[6]
https://aws.amazon.com/marketplace/pp/B011VMCZ8K -- Amazon
Marketplace PAGO Edition
[7]
https://github.com/openlink/virtuoso-opensource -- Github
[8]
http://download.openlinksw.com -- Download Site
--
Regards,
Kingsley Idehen
Founder & CEO
OpenLink Software
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