{"id":148818,"date":"2025-11-19T11:11:55","date_gmt":"2025-11-19T09:11:57","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/mnogochasovoj-sboj-cloudflare-okazalsya-rezultatom-nekorrektnoj-obrabotki-oshibok"},"modified":"2025-11-19T11:11:55","modified_gmt":"2025-11-19T09:11:57","slug":"mnogochasovoj-sboj-cloudflare-okazalsya-rezultatom-nekorrektnoj-obrabotki-oshibok","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/mnogochasovoj-sboj-cloudflare-okazalsya-rezultatom-nekorrektnoj-obrabotki-oshibok","title":{"rendered":"Cloudflare'i mitme tunni katkestus osutus vale vigade t\u00f6\u00f6tlemise tulemuseks.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Cloudflare'i ettev\u00f5te avaldas anal\u00fc\u00fcsi \u00fchest oma infrastruktuuri suurimast intsidentidest, mille t\u00f5ttu j\u00e4i eile suurem osa sisuhalduse v\u00f5rgustikust t\u00f6\u00f6v\u00f5imetuks enam kui 3 tunniks. H\u00e4ire tekkis p\u00e4rast muudatust andmebaasi struktuuris, mis asub ClickHouse'i salvestuses, mille j\u00e4rel suurenes s\u00fcsteemi botit\u00f5rje parameetrite fail kahe kordse suurusega. Andmebaasis tekkisid dubleeritud tabelid, samas kui SQL-p\u00e4ring, mis moodustas faili, lihtsalt t\u00f5i k\u00f5ik andmed k\u00f5igist tabelitest v\u00e4lja v\u00f5tme j\u00e4rgi, ilma dublette filtreerimata. SELECT name, type FROM system.columns WHERE table = 'http_requests_features' order by name;

\"Cloudflare'i<\/center> <\/p>\n

Loodud fail on levinud k\u00f5igi klastrite s\u00f5lmede vahel, mis t\u00f6\u00f6tlevad sissetulevaid p\u00e4ringuid. T\u00f6\u00f6tlejas, mis kasutab seda faili botide tuvastamiseks, hoiti failis m\u00e4\u00e4ratud parameetreid m\u00e4lus ja liigne m\u00e4lusurve v\u00e4ltimiseks oli koodis ette n\u00e4htud failide maksimaalne suurus. Tavalistes tingimustes oli faili tegelik suurus m\u00e4rgatavalt v\u00e4iksem seatud piirangust, kuid tabelite dubleerimise j\u00e4rel \u00fcletas see piiri. <\/p>\n

Probleem tulenes sellest, et piiri \u00fcletamise korral ei t\u00f6\u00f6tlenud s\u00fcsteem \u00f5igesti ja kasutas eelmist faili, teavitades seiret h\u00e4daolukorrast, vaid t\u00f6\u00f6tleja k\u00e4ivitas erakorralise l\u00f5petamise, mis takistas edasise liikluse suunamist. Viga tekkis Rusti koodi unwrap() meetodi kasutamisest, mille tulemus t\u00fc\u00fcp oli Result.

\"Cloudflare'i<\/center> <\/p>\n

Kui Result'i v\u00e4\u00e4rtus on seisundis 'Ok', tagastab meetod unwrap() selle olekuga seotud objekti, kuid kui tulemus ei ole eduka seisundiga \u2014 kutsub kutsumine esile avarii (k\u00e4ivitatakse makro 'panic!'). Tavaliselt kasutatakse unwrap() silumisetapis v\u00f5i testkoodi kirjutamisel ning selle kasutamist tootmisprojektides ei soovitata.

\"Cloudflare'i<\/center>
\"Cloudflare'i<\/center>
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cloudflare \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0430\u0437\u0431\u043e\u0440 \u043e\u0434\u043d\u043e\u0433\u043e \u0438\u0437 \u043a\u0440\u0443\u043f\u043d\u0435\u0439\u0448\u0438\u0445 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u043e\u0432 \u0432 \u0441\u0432\u043e\u0435\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435, \u0438\u0437-\u0437\u0430 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0432\u0447\u0435\u0440\u0430 \u0431\u043e\u043b\u044c\u0448\u0430\u044f \u0447\u0430\u0441\u0442\u044c \u0441\u0435\u0442\u0438 \u0434\u043e\u0441\u0442\u0430\u0432\u043a\u0438 \u043a\u043e\u043d\u0442\u0435\u043d\u0442\u0430 \u043e\u043a\u0430\u0437\u0430\u043b\u0430\u0441\u044c \u043d\u0435\u0440\u0430\u0431\u043e\u0442\u043e\u0441\u043f\u043e\u0441\u043e\u0431\u043d\u043e\u0439 \u043d\u0430 \u043f\u0440\u043e\u0442\u044f\u0436\u0435\u043d\u0438\u0438 \u0431\u043e\u043b\u0435\u0435 3 \u0447\u0430\u0441\u043e\u0432. \u0421\u0431\u043e\u0439 \u043f\u0440\u043e\u0438\u0437\u043e\u0448\u0451\u043b \u043f\u043e\u0441\u043b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0432 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0435 \u0411\u0414, \u0440\u0430\u0437\u043c\u0435\u0449\u0451\u043d\u043d\u043e\u0439 \u0432 \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0435 ClickHouse, \u043f\u043e\u0441\u043b\u0435 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0444\u0430\u0439\u043b \u0441 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u0430\u043c\u0438 \u0434\u043b\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043f\u0440\u043e\u0442\u0438\u0432\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u0431\u043e\u0442\u0430\u043c \u0432 \u0434\u0432\u0430 \u0440\u0430\u0437\u0430 \u0443\u0432\u0435\u043b\u0438\u0447\u0438\u043b\u0441\u044f \u0432 \u0440\u0430\u0437\u043c\u0435\u0440\u0435. \u0412 \u0411\u0414 \u0431\u044b\u043b\u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":148819,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-148818","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Pikaldane Cloudflare katkestus oli valevea t\u00f6\u00f6tlemise tulemus | ProHoster","description":"Ettev\u00f5te Cloudflare avaldas anal\u00fc\u00fcsi \u00fche suurima juhtumi kohta oma infrastruktuuris, mis p\u00f5hjustas eile suures osas sisu edastamise v\u00f5rgu t\u00f6\u00f6katkestuse enam kui 3 tunni jooksul. Rikete tekkis p\u00e4rast muudatust ClickHouse'i andmebaasi struktuuris, mille j\u00e4rel suurenenud suurusega botivastase s\u00fcsteemi parameetrite fail kahekordistus. Andmebaasis olid","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/mnogochasovoj-sboj-cloudflare-okazalsya-rezultatom-nekorrektnoj-obrabotki-oshibok","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u041c\u043d\u043e\u0433\u043e\u0447\u0430\u0441\u043e\u0432\u043e\u0439 \u0441\u0431\u043e\u0439 Cloudflare \u043e\u043a\u0430\u0437\u0430\u043b\u0441\u044f \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u043e\u043c \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 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