dcausse added a comment.
WDQS lag issues should be rare now, a node not serving traffic should (as of today) be able to ingest ~8x the throughput that we usually see on wikidata so we should not worry about them. Using `blazegraph_queries_done_total` to identify nodes that should be part of the maxlag propagation makes a ton of sense, there might be some adjustments to make in how this metric is produced. It currently also include `update` queries which might make the threshold a bit hard to adapt esp. on codfw that receives a lot less trafic than eqiad. If there are no strong reasons against this idea I'm happy to make the necessary adjustments to `blazegraph_queries_done_total` (or possibly introduce a new metric suited for this purpose). TASK DETAIL https://phabricator.wikimedia.org/T331405 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: dcausse Cc: Joe, Aklapper, dcausse, Lucas_Werkmeister_WMDE, Astuthiodit_1, AWesterinen, Arnoldokoth, karapayneWMDE, Invadibot, MPhamWMF, maantietaja, wkandek, JMeybohm, CBogen, ItamarWMDE, Akuckartz, Nandana, Namenlos314, jijiki, Lahi, Gq86, GoranSMilovanovic, QZanden, EBjune, merbst, LawExplorer, _jensen, rosalieper, Scott_WUaS, Jonas, Xmlizer, jkroll, Wikidata-bugs, Jdouglas, aude, Tobias1984, Manybubbles, Mbch331
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