AWesterinen added a comment.
@AndySeaborne Agree. I was erring on the side of explaining where the SPARQL
endpoint came from (not Jena TDB).
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To: AW
AndySeaborne added a comment.
@AWesterinen - Fuseki is part of Jena. Most of the subsystems have informal
names. People refer to "Jena" or "Fuseki" interchangeably and the context is
the task they are doing. Being more specific on naming didn't catch on.
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AndySeaborne added a comment.
@Thadguidry -
https://lists.apache.org/thread/vso02pwg4z6qcs3r1h0mcbc86ls74bhm
where --parallel (the argument on sort(1) that is set by --threads) was set
to 16.
It took 31h compared to 39h without --parallel on sort(1).
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AWesterinen added a comment.
You add Fuseki to Jena to get a SPARQL endpoint. Jena + Fuseki is reasonable
to investigate as a Blazegraph Alternative.
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Thadguidry added a comment.
Hi @AndySeaborne What is the latest benchmarks for loading Wikidata all and
truthy with Jena 4.4.0 release annd the new TDB2 xloader with "--threads"
argument? I noticed the release notes said this:
> == Improved bulk loader
>
> This release includes the
MPhamWMF triaged this task as "Medium" priority.
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To: MPhamWMF
Cc: Osmasuominen, dcausse, Smalyshev, Aklapper, Lucas_Werkmeister_WMDE, Gehel,
Andrawaag,
DD063520 added a comment.
@So9q : How would you like to serve everything from one place? It is normal
to have replica of data. One of the big bottlenecks is IO. Or do I understand
something wrong?
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So9q added a comment.
I read the whole thread and just want to point out that Jena supports SPARQL
Update also.
From what I can see, it seems to be able to replace Blazegraph. But it does
not solve the issue of having multiple parallel servers all with their own
snapshot of the current
dcausse added a comment.
Sorry for the confusion that the rename I did of this task caused.
Just to bring clarity on my reasoning as a maintainer of the wikidata query
service stack as to why being specific on TDB2 might be helpful:
- Some components of Jena are already being used (i.e.
Osmasuominen added a comment.
I have to agree with @AndySeaborne - talking about "Apache Jena with TDB2"
makes as much sense as talking about "VW Beetle with an internal combustion
engine". The framing makes it sound like Beetles come with all kinds of
engines, though in reality they've all
AndySeaborne added a comment.
All - I'm sorry that this sub-task is being redirected to be about Virtuoso.
This would be better moved to the Virtuoso task.
Apache Jena releases a single software product. TDB is the only persistence
layer for Apache Jena that comes from the Apache Jena pr
TallTed added a comment.
@AndySeaborne -- It has been my understanding that Apache Jena (the
framework) performs differently (which may include different speeds of various
actions, which may have different limitations and/or comprise a different list)
when the active "low level storage choic
AndySeaborne added a subscriber: dcausse.
AndySeaborne added a comment.
Hi @dcausse - TDB2 on it's own doesn't provide SPARQL nor any of the other
features. TDB2 is just one low level storage choice - it's not a standalone
thing. I hope you find the description clearer now.
The project h
AndySeaborne renamed this task from "Evaluate Apache Jena TDB2" to "Evaluate
Apache Jena".
AndySeaborne updated the task description.
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To: AndySeaborne
C
dcausse renamed this task from "Evaluate Apache Jena" to "Evaluate Apache Jena
TDB2".
dcausse updated the task description.
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To: dcausse
Cc: Smalyshev, A
AndySeaborne updated the task description.
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To: AndySeaborne
Cc: Smalyshev, Aklapper, Lucas_Werkmeister_WMDE, Gehel, Andrawaag, Addshore,
Susannaanas, Ak
AndySeaborne created this task.
AndySeaborne added projects: Wikidata-Query-Service, Epic, Wikidata,
MediaWiki-Stakeholders-Group.
TASK DESCRIPTION
Apache Jena https://jena.apache.org/ provides SPARQL 1.1, SHACL (core and
SPARQL), ShEx, and RDF-star.
Jena has been reported to
[https://li
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