Exactly,
in evaluating the O2 Edition, the economics comes first, like
it or not.
For research and development purposes you are going to put severe
stress on a triple store. You can always think of some query that
explodes combinatorically, or cases where your graph database
doesn't realize there is a much simpler way of answering the query
than it what it does.
With the limiters out, it becomes easier to overload the database.
If it's your own database you see the whole picture involving an
occasional crash, rebooting the server, understanding the
bottleneck vs. deciding not to write the kind of query that crashes.
You can write more triples into the store, something you can only
do for your own store because it is your own. You can turn it off
when you don't need it and save a lot of money, also you can hit a
button and reset it back to factory condition if you get it in a bad
place somehow.
The minimum wage here in New York is $9.00 an hour and that's a low
rate globally for computer operators. The hourly cost inclusive of
hardware is a small fraction of that. If it is being used by a
developer on a 8-hour work day, you pay for it 1/3 what you would
for running it all day. The $499 annual subscription is compared to
what it might cost to create something similar yourself, such as
$200 for 32GB RAM upgrade to a laptop
+ 8 hours for planning out the process,
+ 4 attempts made to produce successful release
at 8 hours each (4 production + 4 testing)
The cost to roll your own is then $299 + $40 * R where R is the rate.
You couldn't do this legally in New York for less than $560. And that's
for something without extensive optimization, which comes with no
support whatsoever, etc.
If you bill the annual subscription to a credit card you can use it
together with service credits, reserved instances and other techniques
to scale out the hardware as much as you like at a low cost.
I have seen people subscribe and spend about $20 to do a quick
evaluation, so if you have questions it is very worthwhile for you to
try it yourself at
https://aws.amazon.com/marketplace/pp/B01HMUNH4Q/
A Step-by-step tutorial that includes some interesting example
queries is here:
http://ontology2.com/the-book/dbpedia-2016-04.html
Once you have tried it out, please leave a review on the product page
so people won't just have to take my word for it.
--
Paul Houle
paul.ho...@ontology2.com
On Thu, Nov 3, 2016, at 08:33 AM, Dimitris Kontokostas wrote:
>
>
> On Wed, Nov 2, 2016 at 4:28 PM, <baran...@gmail.com> wrote:
>> On Wed, 02 Nov 2016 14:23:19 +0100, Paul Houle
>> <paul.ho...@ontology2.com>
>> wrote:
>>
>> > from the AWS side there is no problem, it is just a matter of
>> > enabling the public endpoint in Virtuoso, or alternately creating
>> > new credentials for people to log in.
>> >
>> > One issue is that with the throttles off, you can ask questions
>> > that take 20+ minutes to answer -- and if lots of people try that
>> > at once the results will not be good.
>>
>> i think i understand this, but still not 100% clear to me your unique
>> competitor position, we say, to
>>
>> https://dbpedia.org/sparql
>
> Hi,
>
> The public DBpedia endpoint is... public
> There is rate limiting, time execution limits, incomplete results
> (Anytime queries[1]), etc to make sure people does not "abuse" it.
> if you produce a lot of load on the public endpoint or want to execute
> expensive queries you will probably start getting 5XX errors back and
> then start thinking of self/managed hosted options
> Paul offers something in this direction
>
> Cheers,
> Dimitris
>
>> Can you give a test link for a couple of days?
>>
>> To the community: Is there somebody who tried this?
>>
>> ************************
>>
>> >
>> > If you want to change the port from 8890 to 80 or something else,
>> > you would need to edit the security groups on the image to make
>> > the desired port open.
>> >
>>
>>
>> --
>> Using Opera's mail client: http://www.opera.com/mail/
>>
>> --------------------------------------------------------------------
>> ----------
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>> Access to Intel Xeon Phi processor-based developer platforms.
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>> _______________________________________________
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>> DBpedia-discussion@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/dbpedia-discussion
>
>
>
> --
> Kontokostas Dimitris
> ----------------------------------------------------------------------
> --------
> Developer Access Program for Intel Xeon Phi Processors
> Access to Intel Xeon Phi processor-based developer platforms.
> With one year of Intel Parallel Studio XE.
> Training and support from Colfax.
> Order your platform today. http://sdm.link/xeonphi
> _________________________________________________
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Links:
1. http://docs.openlinksw.com/virtuoso/anytimequeries/
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