{"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\/lv\/blog\/administrirovanie\/ok-tech-cassandra-meetup","title":{"rendered":"ok.tech: Cassandra meetup","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

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

Str\u0101d\u0101jat ar NoSQL glab\u0101tuv\u0113m Apache Cassandra?<\/h2>\n

\n23. maij\u0101 Odnoklassniki aicina pieredz\u0113ju\u0161us izstr\u0101d\u0101t\u0101jus sav\u0101 biroj\u0101 Sanktp\u0113terburg\u0101 uz meetupu<\/a><\/noindex>, kas velt\u012bts darbam ar Apache Cassandra. Svar\u012bgs ir tikai j\u016bsu pieredze darb\u0101 ar Cassandra un v\u0113lme to dal\u012bties.
\nRe\u0123istr\u0113ties pas\u0101kumam<\/a><\/noindex>
\n<\/a><\/noindex>
\nM\u0113s OK s\u0101k\u0101m izmantot<\/a><\/noindex> Apache Cassandra 2010. gad\u0101, lai uzglab\u0101tu fotoatt\u0113lu v\u0113rt\u0113jumus. \u0160obr\u012bd m\u0113s esam liel\u0101kie Apache Cassandra lietot\u0101ji Runet\u0101 un viens no liel\u0101kajiem Eirop\u0101. Mums ir vair\u0101k nek\u0101 simts da\u017e\u0101du klasteru, kas tiek izmantoti gan da\u017e\u0101das produktu inform\u0101cijas \u2014 kla\u0161u, t\u0113rz\u0113\u0161anu, zi\u0146ojumu glab\u0101\u0161anai, gan kritisk\u0101s infrastrukt\u016bras datu p\u0101rvald\u012bbai \u2014 lo\u0123isko blokflotu kart\u0113\u0161anai uz liel\u0101s bin\u0101r\u0101s glab\u0101tuves diskus \u2014 one-cold-storage<\/a><\/noindex>, iek\u0161\u0113j\u0101 m\u0101ko\u0146a datu p\u0101rvald\u012bba. one-cloud<\/a><\/noindex> utt.<\/p>\n

Kop\u0101 Odnoklassniki<\/a><\/noindex> Cassandra p\u0101rvald\u012bb\u0101 ir petabaiti datu t\u016bksto\u0161os mezglu. \u0160aj\u0101 laik\u0101 m\u0113s esam uzkr\u0101ju\u0161i milz\u012bgu pieredzi administr\u0113\u0161an\u0101, izstr\u0101d\u0113 un risin\u0101jumu ekspluat\u0101cij\u0101, kas balst\u0101s uz Cassandra, un pat izstr\u0101d\u0101j\u0101m savu pa\u0161izstr\u0101d\u0101tu NewSQL transakciju DB<\/a><\/noindex>.<\/p>\n

\u0160obr\u012bd m\u0113s v\u0113l\u0113tos dal\u012bties ar visu \u0161o ar jums \u2014 uz re\u0101liem gad\u012bjumiem no prakses un bez nosl\u0113pumiem; pas\u0101kums notiks dz\u012bvas diskusijas form\u0101t\u0101 starp dal\u012bbniekiem, tas noz\u012bm\u0113, ka apsprie\u0161ana aiz\u0146ems liel\u0101ko da\u013cu laika. OK eksperti<\/a><\/noindex> ir gatavi dal\u012bties ar sav\u0101m idej\u0101m un pieej\u0101m. Pas\u0101kumu vad\u012bs O\u013cegs Anastasjevs<\/a><\/noindex> un Aleksandrs Hristoforovs<\/a><\/noindex>.<\/p>\n

K\u0101das b\u016bs t\u0113mas?<\/h2>\n

<\/p>\n

Ekspluat\u0101cija:<\/h3>\n

\nApskat\u012bsim tipisk\u0101s mezglu un klasteru konfigur\u0101cijas da\u017e\u0101d\u0101s ra\u017eo\u0161anas uzst\u0101d\u012bjumos. Apspried\u012bsim, k\u0101 papla\u0161in\u0101t klasterus, pieaugot datu un slodzes apjomam, un k\u0101 nomain\u012bt atteiku\u0161os mezglus ar minim\u0101lu ietekmi uz klientiem. Dal\u012bsimies pieredz\u0113 un sistematiz\u0113sim popul\u0101r\u0101s probl\u0113mas. Noskaidrosim, k\u0101 uzraudz\u012bt klasterus, lai savlaic\u012bgi saprastu, kur un kas tie\u0161i nedarbojas pareizi. Apskat\u012bsim jauno versiju Cassandra izvietojuma probl\u0113mas.<\/p>\n

Veiktsp\u0113ja:<\/h3>\n

\nM\u0113\u0123in\u0101sim saprast, uz k\u0101d\u0101m metrik\u0101m skat\u012bties un ko var uzlabot, lai uzlabotu metrikas. Izm\u0113\u0123in\u0101sim, vai retreinot vai n\u0113, un, ja j\u0101, tad k\u0101. Identific\u0113sim \u0161aur\u0101s vietas arhitekt\u016br\u0101 un Cassandra realiz\u0101cij\u0101 un apskat\u012bsim da\u017eus in\u017eenierijas trikus, lai t\u0101s apietu. Apskat\u012bsim s\u0101p\u012bgo regul\u0101ro remontu un kompakciju bez veiktsp\u0113jas degrad\u0101cijas.<\/p>\n

Nep\u0101rtraukt\u012bba:<\/h3>\n

\nDzelzs nav m\u016b\u017e\u012bgs, t\u0101d\u0113\u013c av\u0101rijas notiek past\u0101v\u012bgi, un ar\u012b kol\u0113\u0123a roka var dreb\u0113t, un m\u0113s izdz\u0113s\u012bsim lieko. T\u0101d\u0113\u013c apskat\u012bsim diskus, ma\u0161\u012bnu vai datu centra \u0137\u0113des atjauno\u0161anu p\u0113c trauc\u0113jumiem, k\u0101 ar\u012b atgrie\u0161anos pie konsistenta st\u0101vok\u013ca no dubl\u0113jumiem operatora k\u013c\u016bdu gad\u012bjum\u0101.<\/p>\n

Re\u0123istr\u0113jieties<\/a><\/noindex> Un past\u0101stiet par pas\u0101kumu draugiem un kol\u0113\u0123iem.
\n
Avots: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0431\u043e\u0442\u0430\u0435\u0442\u0435 \u0441 NoSQL-\u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0435\u043c Apache Cassandra? 23 \u043c\u0430\u044f \u041e\u0434\u043d\u043e\u043a\u043b\u0430\u0441\u0441\u043d\u0438\u043a\u0438 \u043f\u0440\u0438\u0433\u043b\u0430\u0448\u0430\u044e\u0442 \u043e\u043f\u044b\u0442\u043d\u044b\u0445 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u0432 \u0441\u0432\u043e\u0439 \u043e\u0444\u0438\u0441 \u0432 \u041f\u0435\u0442\u0435\u0440\u0431\u0443\u0440\u0433\u0435 \u043d\u0430 \u043c\u0438\u0442\u0430\u043f, \u043f\u043e\u0441\u0432\u044f\u0449\u0435\u043d\u043d\u044b\u0439 \u0440\u0430\u0431\u043e\u0442\u0435 \u0441 Apache Cassandra. \u0412\u0430\u0436\u0435\u043d \u043b\u0438\u0448\u044c \u0432\u0430\u0448 \u043e\u043f\u044b\u0442 \u0440\u0430\u0431\u043e\u0442\u044b \u0441 Cassandra \u0438 \u0436\u0435\u043b\u0430\u043d\u0438\u0435 \u0438\u043c \u043f\u043e\u0434\u0435\u043b\u0438\u0442\u044c\u0441\u044f. \u0417\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u043d\u0430 \u043c\u0435\u0440\u043e\u043f\u0440\u0438\u044f\u0442\u0438\u0435 \u041c\u044b \u0432 \u041e\u041a \u043d\u0430\u0447\u0430\u043b\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c Apache Cassandra \u0432 2010 \u0433\u043e\u0434\u0443 \u0434\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043e\u0446\u0435\u043d\u043e\u043a \u0444\u043e\u0442\u043e. \u0412 \u043d\u0430\u0441\u0442\u043e\u044f\u0449\u0435\u0435 \u0432\u0440\u0435\u043c\u044f \u043c\u044b […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":24215,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-32402","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\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\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47ok.tech: Cassandra meetup | ProHoster","description":"Str\u0101d\u0101jat ar NoSQL kr\u0101tuvi Apache Cassandra? 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