AW: Amazon to host public data sets in the cloud for free

> Can this be used to have SPARQL endpoints with public date on the Amazon
> cloud?

sadly neither easily nor for free. An EBS snapshot is just that: a snapshot
of some data partition that can be used to create new data partitions from
it. It has no computing ressources attached to it. But still, this is not
bad - this saves you the: download large dataset (can take days), find large
enough hard disk, expand, parse import; steps that you now need to use large
datasets. An EBS could contain e.g. the MySQL database files (not a dump)
that you could then directly use without any of the above.

To make a sparql endpoint from this you would need to have an EC2 instance
(a virtual machine in amazons cloud) actually running your tripple store and
you would need to mount a copy of the EBS snapshot - both things costs a bit
of money ($0.10 per instance hour (for the smallest machine)+ $0.10 per
gigabyte month of mounted storage + $0.10 per million IO requests to EBS +
$0.17 per GB of traffic out + some smaller costs related to setting
everything up)

cu



-- 
email: zacharias@fzi.de
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http://www.vzach.de/blog


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> -----Ursprüngliche Nachricht-----
> Von: Denny Vrandečić [mailto:dvr@aifb.uni-karlsruhe.de]
> Gesendet: Dienstag, 25. November 2008 19:35
> An: Valentin Zacharias
> Cc: Chris Bizer; semantic-web@w3c.org
> Betreff: Re: Amazon to host public data sets in the cloud for free
> Wichtigkeit: Hoch
> 
> Can this be used to have SPARQL endpoints with public date on the Amazon
> cloud? That would be sweet :)
> denny
> 
> Valentin Zacharias wrote:
> > could this be a cool way to make great datasets such as the DBpedia,
> the
> > YARS2 dataset, 'normal' Wikipedia etc. even better and wider
> available?
> >
> > "AWS Hosted Public Data Sets provide a convenient way to share,
> access, and
> > use public data within your Amazon EC2 environment. Select public data
> sets
> > are hosted on AWS for free as an Amazon EBS snapshot. Any Amazon EC2
> > customer can access this data by creating their own personal Amazon
> EBS
> > volume from a publicly shared Amazon EBS public data set snapshot.
> They can
> > then access, modify, and perform computation on these data sets
> directly
> > using an Amazon EC2 instance and just pay for the compute and storage
> > resources that they use."
> >
> > (EBS=Elastic Block Store, like a harddisk in the cloud)
> >
> > http://aws.amazon.com/publicdatasets/, see also
> >
> http://www.readwriteweb.com/archives/amazon_web_services_seeks_publ.php

> >
> >
> > cu
> >
> > valentin
> >

Received on Tuesday, 25 November 2008 21:38:27 UTC