Hello Samuel! Thanks for the question! The explanation was probably not clear enough on the wiki page [1]. I'll see if I can reword it in a way that makes more sense. In the meantime, let's see if I can make things more clear here:
For the transition period, we want to limit as much as possible the impact on anyone, so query.wikidata.org will continue serving the full graph. The 2 new endpoints are created to serve the "main" and "scholarly" subgraphs. All those endpoints can be federated together. After the transition period, query.wikidata.org and query-main.wikidata.org will point to the same dataset. Some of that is explained in the Federation Guide [2]. I hope that helps! Guillaume [1] https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/WDQS_backend_update/September_2024_scaling_update [2] https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/WDQS_graph_split/Internal_Federation_Guide#What_will_happen_to_my_queries/tools_if_I_don't_use_the_new_endpoints ? On Wed, 4 Sept 2024 at 06:30, Samuel Klein <[email protected]> wrote: > Hello Guillaume -- is the idea no longer for query.wikidata to serve > federated queries across -main and -scholarly? Where will federated > querying happen? SJ > > On Tue, Sep 3, 2024 at 4:01 PM Guillaume Lederrey <[email protected]> > wrote: > >> Hi all! >> >> As part of the WDQS Graph Split project,[1] we have new SPARQL endpoints >> available for serving the “main”[2] and “scholarly”[3] subgraphs of >> Wikidata. >> >> As you might be aware we are addressing the Wikidata Query Service >> stability and scaling issues. We have been working on several projects to >> address these issues. This announcement is about one of them, the WDQS >> Graph Split.[1] This change will have an impact on certain uses of the >> Wikidata Query Service. >> >> We are now entering a transition period until the end of February 2025. >> The three SPARQL endpoints will remain in place until the end of the >> transition. At the end of the transition, query.wikidata.org will serve >> the main Wikidata subgraph (without scholarly articles). The query-main and >> query-scholarly endpoints will continue to be available after the >> transition. >> >> If you know to want more this change, please refer to the talk page on >> Wikidata.[4] >> >> Have fun! >> >> Guillaume >> >> [1] >> https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/WDQS_graph_split >> [2] https://query-main.wikidata.org >> [3] https://query-scholarly.wikidata.org >> [4] >> https://www.wikidata.org/wiki/Wikidata:SPARQL_query_service/WDQS_backend_update/September_2024_scaling_update >> >> -- >> *Guillaume Lederrey* (he/him) >> Engineering Manager >> Wikimedia Foundation <https://wikimediafoundation.org/> >> _______________________________________________ >> Wikitech-l mailing list -- [email protected] >> To unsubscribe send an email to [email protected] >> >> https://lists.wikimedia.org/postorius/lists/wikitech-l.lists.wikimedia.org/ > > > > -- > Samuel Klein @metasj w:user:sj +1 617 529 4266 > _______________________________________________ > Wikitech-l mailing list -- [email protected] > To unsubscribe send an email to [email protected] > https://lists.wikimedia.org/postorius/lists/wikitech-l.lists.wikimedia.org/ -- *Guillaume Lederrey* (he/him) Engineering Manager Wikimedia Foundation <https://wikimediafoundation.org/>
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