MPhamWMF created this task. MPhamWMF added a project: Wikidata-Query-Service. Restricted Application added a subscriber: Aklapper.
TASK DESCRIPTION As a user, I want to know which Wikidata predicates may put my query at risk of timeouts due to their distribution across subgraphs, so that I can minimize the chances of my queries failing, and the chances of my query impacting other users. Some queries are distributed across interconnected subgraphs in such a way that queries can become unknowingly/unintentionally more expensive: e.g. searching for humans who are authors may be unexpectedly more expensive due to author predicates being highly overrepresented in the scholarly articles subgraph (this is not a real example). From a user perspective, seemingly simple queries can then lead to timeouts due to WDQS needing to do unexpected parsing through connected large subgraphs. In T291205 <https://phabricator.wikimedia.org/T291205>, we identified and examined specific predicates with these distributional properties. This ticket is to identify these properties automatically, and divide them into groups such as: - danger properties, always timesout query - used across a lot of subgraphs - used only in 1 or 2 subgraphs Out of scope - decisions around what to do with identified properties TASK DETAIL https://phabricator.wikimedia.org/T295779 WORKBOARD https://phabricator.wikimedia.org/project/board/891/ EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: MPhamWMF Cc: Aklapper, MPhamWMF, CBogen, Namenlos314, Gq86, Lucas_Werkmeister_WMDE, EBjune, merbst, Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles
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