At that, a Reasonator page fails to load eg
https://tools.wmflabs.org/reasonator/?q=Q57328736&lang=en I have noticed
that using tools like SourceMD will not always show the labels for items
that were processed (less than 20)...
Performance is getting worse and particularly when you rely on up to date
information, Wikidata is not what we were used to.
Thanks,
GerardM
On Sun, 25 Nov 2018 at 14:56, Markus Kroetzsch <
[email protected]> wrote:
> Hi,
>
> I just noticed that BlazeGraph takes an undue amount of time for a
> rather simple type of queries. The following times out:
>
> SELECT ?item ?itemLabel
> WHERE
> {
> ?item wdt:P31 []
> SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
> } LIMIT 10
>
> Manually forcing a specific query plan makes the query work in <200ms:
>
> SELECT ?item ?itemLabel
> WHERE
> {
> { SELECT * WHERE { ?item wdt:P31 [] } LIMIT 10 }
> SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
> }
>
> But of course the original query should normally be streaming and not
> depend on any such smartness to push LIMIT inwards.
>
> Cheers,
>
> Markus
>
>
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