Excellent, thank you!
Best,
Heiko.
Am 11.04.2012 16:44, schrieb Kingsley Idehen:
On 4/11/12 10:14 AM, Heiko Paulheim wrote:
Dear Kingsley,
OK, here's a basic example URL of a query I use:
http://dbpedia.org/sparql?query=SELECT+DISTINCT+%3Fp+%3Ft%0D%0AFROM+%3Chttp%3A%2F%2Fdbpedia.org%3E%0D%0AWHERE+{%3Chttp%3A%2F%2Fdbpedia.org%2Fresource%2FEngland%3E+%3Fp+%3Fo.+%3Fo+a+%3Ft+}&format=text%2Fhtml&timeout=120000
Links:
1. http://dbpedia.org/c/Z63DBC -- query result
2. http://dbpedia.org/c/ZNS2TM -- query text.
Page through the data using:
1. SELECT * WHERE {?s a ?o} OFFSET 0 LIMIT 1000 -- iteration 1
2. SELECT * WHERE {?s a ?o} OFFSET 1000 LIMIT 1000 -- iteration 2
3. Ditto with OFFSET incremented in blocks of 1000 .
Kingsley
Best,
Heiko.
Am 11.04.2012 16:09, schrieb Kingsley Idehen:
On 4/11/12 10:07 AM, Heiko Paulheim wrote:
Dear Kingsley,
as I said, there is no query that times out as such. All the
queries work fine in isolation. It is rather a problem of a longer
series of queries that eventually provokes the "Bandwith Limit
Exceeded" exception.
Thus, my question is what that limit exactly is, and how many
queries can be issued from a single client per minute/hour. I also
have no problems in restricting my client to that limit, I just
need to know it.
Please just send me a URL and then I can send one back to you that
shows the setting you need re. Virtuoso's Anytime Query feature.
This feature is to be used in combination with OFFSET and LIMIT re.
the public endpoint, in line with how it is deliberately configured.
Kingsley
Best,
Heiko.
Am 11.04.2012 15:41, schrieb Kingsley Idehen:
On 4/11/12 9:14 AM, Heiko Paulheim wrote:
Dear Kingsley,
the query in question is looking for types of objects related to
a resource (e.g. a person knows some scientists, has written some
books, etc.), i.e.
SELECT DISTINCT ?p ?t
FROM <http://dbpedia.org>
WHERE {?s ?p <objectInQuestion>. ?s a ?t }
SELECT DISTINCT ?p ?t
FROM <http://dbpedia.org>
WHERE {<objectInQuestion> ?p ?o. ?o a ?t }
The particular query where the program terminates works fine in
isolation, just like about 200 before.
I have set the timeout to 120 seconds and retry a failed query
after waiting for 1 second.
Please send a SPARQL URL of a query that times out.
Kingsley
Best,
Heiko.
Am 11.04.2012 14:55, schrieb Kingsley Idehen:
On 4/11/12 6:47 AM, Heiko Paulheim wrote:
Hi all,
I am currently experiencing a repeated Bandwidth Limit Exceeded
exception, always occuring at the same position in my program
(i.e.,
after a certain number of requests having been issued in a certain
time). Since the program can be properly started again
afterwards (and
runs to that very point), I assume that limiting the number of
requests
per minute/hour within the program would solve the problem.
Does anybody know detailed figures about the bandwith
restrictions of
DBpedia, in particular w.r.t. the dbpedia.org/sparql endpoint?
Thanks,
Heiko.
What is your query?
Are you using timeouts?
The DBpedia instance is configured to serve the world and all
its associated idiosyncrasies.
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--
Dr. Heiko Paulheim
Knowledge Engineering Group
Technische Universität Darmstadt
Phone: +49 6151 16 6634
Fax: +49 6151 16 5482
http://www.ke.tu-darmstadt.de/staff/heiko-paulheim
--
Regards,
Kingsley Idehen
Founder& CEO
OpenLink Software
Company Web:http://www.openlinksw.com
Personal Weblog:http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
Google+ Profile:https://plus.google.com/112399767740508618350/about
LinkedIn Profile:http://www.linkedin.com/in/kidehen
--
Dr. Heiko Paulheim
Knowledge Engineering Group
Technische Universität Darmstadt
Phone: +49 6151 16 6634
Fax: +49 6151 16 5482
http://www.ke.tu-darmstadt.de/staff/heiko-paulheim
--
Regards,
Kingsley Idehen
Founder& CEO
OpenLink Software
Company Web:http://www.openlinksw.com
Personal Weblog:http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
Google+ Profile:https://plus.google.com/112399767740508618350/about
LinkedIn Profile:http://www.linkedin.com/in/kidehen
--
Dr. Heiko Paulheim
Knowledge Engineering Group
Technische Universität Darmstadt
Phone: +49 6151 16 6634
Fax: +49 6151 16 5482
http://www.ke.tu-darmstadt.de/staff/heiko-paulheim
--
Regards,
Kingsley Idehen
Founder& CEO
OpenLink Software
Company Web:http://www.openlinksw.com
Personal Weblog:http://www.openlinksw.com/blog/~kidehen
Twitter/Identi.ca handle: @kidehen
Google+ Profile:https://plus.google.com/112399767740508618350/about
LinkedIn Profile:http://www.linkedin.com/in/kidehen
--
Dr. Heiko Paulheim
Knowledge Engineering Group
Technische Universität Darmstadt
Phone: +49 6151 16 6634
Fax: +49 6151 16 5482
http://www.ke.tu-darmstadt.de/staff/heiko-paulheim
------------------------------------------------------------------------------
Better than sec? Nothing is better than sec when it comes to
monitoring Big Data applications. Try Boundary one-second
resolution app monitoring today. Free.
http://p.sf.net/sfu/Boundary-dev2dev
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Dbpedia-discussion mailing list
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