CommunityTechBot updated the task description. (Show Details)

CHANGES TO TASK DESCRIPTION
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 regularly observe clients of Wikidata Query Service which go way over our throttling limits for a long time. For example, we currently have what looks like a bot, generating HTTP 429 at a rate of ~300/minute, clearly ignoring the rate limit and the "Retry-After" headers. While this is not a major problem (throttled requests are cheap), it is still a concern, since our throttling mechanism does not share state across the cluster. It allows such a bot to max out its throttling limit on each node.

One proposed approach would be to entirely ban such a user for a period of time, if it is obvious that the behaviour can be considered as abusive. For example, a bot generating more than 200 requests per minute during 1h would be banned for 24h.

TASK DETAIL
https://phabricator.wikimedia.org/T194653

EMAIL PREFERENCES
https://phabricator.wikimedia.org/settings/panel/emailpreferences/

To: CommunityTechBot
Cc: Cirdan, Smalyshev, Gehel, AndyTan, Gaboe420, Zylc, Versusxo, Majesticalreaper22, Giuliamocci, Davinaclare77, Adrian1985, Qtn1293, Cpaulf30, 1978Gage2001, Lahi, Gq86, Baloch007, Darkminds3113, Bsandipan, Lordiis, herron, Lucas_Werkmeister_WMDE, GoranSMilovanovic, Adik2382, Chicocvenancio, alanajjar, Th3d3v1ls, Hfbn0, Ramalepe, Liugev6, QZanden, EBjune, Tbscho, merbst, LawExplorer, Lea_WMDE, Mattias_Ostmar-WMSE, Avner, Lewizho99, Zppix, JJMC89, Maathavan, Jseddon, Ryuch, Mkdw, RuyP, JEumerus, Jonas, FloNight, Xmlizer, Trizek-WMF, KasiaWMDE, 0x010C, srodlund, Wong128hk, Luke081515, grin, Bsadowski1, mys_721tx, jkroll, Wikidata-bugs, Jdouglas, Snowolf, aude, Tobias1984, Huji, Manybubbles, Gryllida, jayvdb, Tobi_WMDE_SW, faidon, revi, scfc, He7d3r, Romaine, Mbch331, Jay8g, Glaisher, Krenair, fgiunchedi, chasemp
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