{"id":32402,"date":"2019-10-31T21:46:51","date_gmt":"2019-10-31T18:46:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/ok-tech-cassandra-meetup\/"},"modified":"2019-10-31T21:46:51","modified_gmt":"2019-10-31T18:46:51","slug":"ok-tech-cassandra-meetup","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/ok-tech-cassandra-meetup","title":{"rendered":"ok.tech: Cassandra kohtumine.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"ok.tech:
\n<\/p>\n

Kas t\u00f6\u00f6tate NoSQL-andmebaasi Apache Cassandra'ga?<\/h2>\n

\n23. mail kutsuvad Odnoklassniki kogenud arendajaid oma kontorisse Peterburis kohtumisele<\/a><\/noindex>, mis on p\u00fchendatud Apache Cassandra'ga t\u00f6\u00f6tamisele. Oluline on vaid teie kogemus Cassandra'ga ja soov seda jagada.
\nRegistreeruge \u00fcritusele<\/a><\/noindex>
\n<\/a><\/noindex>
\nMeie OTs alustasime<\/a><\/noindex> Apache Cassandra kasutamist 2010. aastal fotode hindamise jaoks. Praegu oleme me suurimad Apache Cassandra kasutajad Ruunetis ja \u00fched suurimatest Euroopas. Meie erinevates klastrites on rohkem kui sada kasutatavat andmeid, sh erinevate tooteandmete hoidmiseks \u2014 klassid, vestlused, s\u00f5numid, samuti kriitiliste infrastruktuuriandmete haldamiseks \u2014 loogiliste plokkide kaardistamine suure binaarse andmehoidla one-cold-storage<\/a><\/noindex>, sisemise pilve andmete haldamiseks. one-cloud<\/a><\/noindex> Kui kaua aega kulub v\u00e4ljastamiseks?<\/p>\n

Kokku hallatakse Cassandra all petabaitide andmeid tuhandetes s\u00f5lmedes. Selle aja jooksul oleme kogunud tohutut kogemust Cassandra alusel lahenduste haldamises, arenduses ja t\u00f6\u00f6le rakendamises ning j\u00f5udnud isegi oma Odnoklassniki<\/a><\/noindex> Cassandra haldendab petabaitide andmeid tuhandetel node'idel. Selle aja jooksul oleme kogunud tohutut kogemust Cassandra lahenduste haldamises, arendamises ja kasutamises ning oleme isegi v\u00e4lja arendanud oma enda NewSQL tehingu andmebaasi<\/a><\/noindex>.<\/p>\n

N\u00fc\u00fcd soovime jagada seda teiega \u2014 reaalsete juhtumite p\u00f5hjal ja ilma saladusteta; \u00fcritus toimub osalejate vahelise avatud arutelu vormis, mis t\u00e4hendab, et arutelu v\u00f5taks enamus aega. Eksperdid OK<\/a><\/noindex> on valmis jagama oma ideid ja l\u00e4henemisviise. \u00dcritust juhivad Oleg Anastasjev<\/a><\/noindex> ja Aleksander Hristoforov<\/a><\/noindex>.<\/p>\n

Millised on teemad?<\/h2>\n

<\/p>\n

T\u00f6\u00f6tamine:<\/h3>\n

\nVaadake t\u00fc\u00fcpilisi s\u00f5lmede ja klastrite konfiguratsioone erinevates tootmisinstalleeringutes. Arutame, kuidas klastreid laiendada, kui andmete ja koormuse maht kasvab, ja kuidas vahetada v\u00e4lja riknenud s\u00f5lmed minimaalse m\u00f5ju saavutamiseks klientidele. Jagame kogemusi ja struktureerime levinud takistusi. Selgitame, kuidas klastreid j\u00e4lgida, et eelnevalt m\u00f5ista, kus ja mis t\u00e4pselt ei t\u00f6\u00f6ta. R\u00e4\u00e4gime uut versiooni Cassandra juurutamise probleemidest.<\/p>\n

T\u00f5husus:<\/h3>\n

\nP\u00fc\u00fcame m\u00f5ista, millistele n\u00e4itajatele t\u00e4helepanu p\u00f6\u00f6rata ja mida saab reguleerida, et tulemused oleksid paremad. Uurime, kas tasub retri teha ja kui jah, siis kuidas. Tuvastame arhitektuuri ja Cassandra teostuse kitsaskohad ning tutvume m\u00f5ningate inseneritrikkidega, et neist ringi minna. R\u00e4\u00e4gime p\u00e4evakorrast regulaarse repair ja compaction'i tegemisest ilma t\u00f5hususe kadumiseta.<\/p>\n

Vastupidavus:<\/h3>\n

\nRiistvara ei j\u00e4\u00e4 igaveseks, mist\u00f5ttu \u00f5nnetused juhtuvad pidevalt, ja kolleegi k\u00e4si v\u00f5ib v\u00e4riseda, mist\u00f5ttu arutame taastumist ketaste, masinate v\u00f5i andmekeskuste riketest ning samuti tagasiv\u00f5tmist j\u00e4rjepidevasse olekusse varukoopiatest operaatori vigade korral.<\/p>\n

Registreerige end<\/a><\/noindex> ja r\u00e4\u00e4kige \u00fcritusest oma s\u00f5pradele ja kolleegidele.
\n
Allikas: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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Oluline on ainult teie kogemus Cassandra'ga ja soov seda jagada. Registreeruge \u00fcritusele. Meie ODs alustasime Apache Cassandra kasutamist 2010. aastal fotode hindamise talletamiseks. 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