On 15/09/2022 17.48, Lorenz Buehmann wrote:
Forgot:
- size of result for each triple pattern? Might affect if hash join
can be used.
It's one row for each.
- your hardware?
Normal server with 16gigs mem.
- is it just the first query after starting Fuseki? Connections have
been closed? Note, there was also a bug in a recent Jena version, but
only with TDB and too many open connections. It has been resolved with
release 4.6.1.
Jena has been running quite a while.
Might not be related, but I'm mentioning all things here nevertheless.
On 15.09.22 11:16, Mikael Pesonen wrote:
This returns one row fast, say :C1
SELECT *
FROM <https://a.b.c>
WHERE {
<https://x.y.z> a ?t .
#?t skos:prefLabel ?l
}
and this too:
SELECT *
FROM <https://a.b.c>
WHERE {
#<https://x.y.z> a ?t .
:C1 skos:prefLabel ?l
}
But this always hangs until timeout
SELECT *
FROM <https://a.b.c>
WHERE {
<https://x.y.z> a ?t .
?t skos:prefLabel ?l
}
What am I missing here? I'm using Fuseki web GUI. Thanks!
--
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