{"id":90548,"date":"2020-08-02T13:42:53","date_gmt":"2020-08-02T11:42:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/reliz-platformy-dlya-raspredelyonnoj-obrabotki-dannyh-apache-hadoop-3-3"},"modified":"2020-08-02T13:42:53","modified_gmt":"2020-08-02T11:42:53","slug":"reliz-platformy-dlya-raspredelyonnoj-obrabotki-dannyh-apache-hadoop-3-3","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/reliz-platformy-dlya-raspredelyonnoj-obrabotki-dannyh-apache-hadoop-3-3","title":{"rendered":"Verze platformy pro distribuovan\u00e9 zpracov\u00e1n\u00ed dat Apache Hadoop 3.3","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Po v\u00edce ne\u017e roce a p\u016fl v\u00fdvoje organizace Apache Software Foundation <noindex><a rel=\"nofollow\" href=\"https:\/\/blogs.apache.org\/hadoop\/entry\/announce-apache-hadoop-3-3\">publikovala<\/a><\/noindex> vyd\u00e1n\u00ed <noindex><a rel=\"nofollow\" href=\"http:\/\/hadoop.apache.org\">Apache Hadoop 3.3.0<\/a><\/noindex>, svobodn\u00e9 platformy pro organizaci distribuovan\u00e9ho zpracov\u00e1n\u00ed velk\u00fdch objem\u016f dat s vyu\u017eit\u00edm paradigmy <noindex><a rel=\"nofollow\" href=\"http:\/\/ru.wikipedia.org\/wiki\/MapReduce\">map\/reduce<\/a><\/noindex>, p\u0159i kter\u00e9 je \u00faloha rozd\u011blena na mno\u017estv\u00ed men\u0161\u00edch izolovan\u00fdch fragment\u016f, z nich\u017e ka\u017ed\u00fd m\u016f\u017ee b\u00fdt spu\u0161t\u011bn na samostatn\u00e9m uzlu clustera. \u00dalo\u017ei\u0161t\u011b zalo\u017een\u00e9 na Hadoopu m\u016f\u017ee pokr\u00fdvat tis\u00edce uzl\u016f a obsahovat exabajty dat.<\/p>\n<p>Sou\u010d\u00e1st\u00ed Hadoopu je implementace distribuovan\u00e9ho souborov\u00e9ho syst\u00e9mu Hadoop Distributed Filesystem (HDFS), kter\u00fd automaticky zaji\u0161\u0165uje z\u00e1lohov\u00e1n\u00ed dat a je optimalizov\u00e1n pro pr\u00e1ci s aplikacemi MapReduce. Pro zjednodu\u0161en\u00ed p\u0159\u00edstupu k dat\u016fm v \u00falo\u017ei\u0161ti Hadoop byla vyvinuta datab\u00e1ze HBase a jazyk podobn\u00fd SQL Pig, co\u017e je n\u011bco jako SQL pro MapReduce, jeho\u017e dotazy mohou b\u00fdt paralelizov\u00e1ny a zpracov\u00e1ny n\u011bkolika Hadoop platformami. Projekt je hodnocen jako zcela stabiln\u00ed a p\u0159ipraven\u00fd pro pr\u016fmyslov\u00e9 nasazen\u00ed. Hadoop je aktivn\u011b pou\u017e\u00edv\u00e1n ve velk\u00fdch pr\u016fmyslov\u00fdch projektech, poskytuj\u00edc\u00ed mo\u017enosti, kter\u00e9 jsou podobn\u00e9 platform\u011b Google Bigtable\/GFS\/MapReduce, p\u0159i\u010dem\u017e spole\u010dnost Google ofici\u00e1ln\u011b <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=26398\">delegovala<\/a><\/noindex> Hadoopu a dal\u0161\u00edm projekt\u016fm Apache pr\u00e1vo pou\u017e\u00edvat technologie, na kter\u00e9 se vztahuj\u00ed patenty souvisej\u00edc\u00ed s metodou MapReduce. <\/p>\n<p>Hadoop zauj\u00edm\u00e1 prvn\u00ed m\u00edsto mezi repozit\u00e1\u0159i Apache z hlediska po\u010dtu proveden\u00fdch zm\u011bn a p\u00e1t\u00e9 m\u00edsto podle velikosti k\u00f3dov\u00e9 z\u00e1kladny (asi 4 mili\u00f3ny \u0159\u00e1dk\u016f k\u00f3du). Mezi v\u00fdznamn\u00e1 nasazen\u00ed Hadoopu pat\u0159\u00ed \u00falo\u017ei\u0161t\u011b Netflix (uchov\u00e1v\u00e1 v\u00edce ne\u017e 500 miliard ud\u00e1lost\u00ed denn\u011b), Twitter (cluster se 10 tis\u00edci uzly v re\u00e1ln\u00e9m \u010dase uchov\u00e1v\u00e1 v\u00edce ne\u017e zettabajt dat a zpracov\u00e1v\u00e1 v\u00edce ne\u017e 5 miliard sezen\u00ed denn\u011b), Facebook (cluster se 4 tis\u00edci uzly uchov\u00e1v\u00e1 v\u00edce ne\u017e 300 petabajt\u016f a ka\u017ed\u00fd den se zvy\u0161uje o 4 PB).<\/p>\n<p>Hlavn\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/hadoop.apache.org\/docs\/r3.3.0\/hadoop-project-dist\/hadoop-common\/release\/3.3.0\/CHANGELOG.3.3.0.html\">zm\u011bny<\/a><\/noindex> v Apache Hadoop 3.3:<\/p>\n<ul>\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora platforem zalo\u017een\u00fdch na architektu\u0159e ARM.\n<li class=\"l\"> Implementace form\u00e1tu <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/protocolbuffers\/protobuf\">Protobuf<\/a><\/noindex> (Protocol buffers), pou\u017e\u00edvan\u00e9ho pro serializaci strukturovan\u00fdch dat, byla aktualizov\u00e1na na vyd\u00e1n\u00ed 3.7.1 v souvislosti s ukon\u010den\u00edm \u017eivotn\u00edho cyklu v\u011btve protobuf-2.5.0.\n<li class=\"l\"> Byly roz\u0161\u00ed\u0159eny mo\u017enosti konektoru S3A: byla p\u0159id\u00e1na podpora autentizace pomoc\u00ed token\u016f (<noindex><a rel=\"nofollow\" href=\"https:\/\/blog.cloudera.com\/hadoop-delegation-tokens-explained\/\">Delegation Token<\/a><\/noindex>), byla vylep\u0161ena podpora mezipam\u011bti odpov\u011bd\u00ed s k\u00f3dem 404, zv\u00fd\u0161ena v\u00fdkonnost S3guard a zlep\u0161ena spolehlivost provozu.\n<li class=\"l\"> V souborov\u00e9m syst\u00e9mu ABFS byly vy\u0159e\u0161eny probl\u00e9my s automatick\u00fdm lad\u011bn\u00edm.\n<li class=\"l\"> Byla p\u0159id\u00e1na integrovan\u00e1 podpora souborov\u00e9ho syst\u00e9mu Tencent Cloud COS pro p\u0159\u00edstup k objektov\u00e9mu \u00falo\u017ei\u0161ti COS.\n<li class=\"l\"> Byla p\u0159id\u00e1na pln\u00e1 podpora Java 11.\n<li class=\"l\"> Byla stabilizov\u00e1na implementace HDFS RBF (Federace zalo\u017een\u00e1 na Routeru). Do HDFS Routeru byly p\u0159id\u00e1ny n\u00e1stroje pro spr\u00e1vu zabezpe\u010den\u00ed.\n<li class=\"l\"> Byla p\u0159id\u00e1na slu\u017eba DNS Resolution pro ur\u010den\u00ed server\u016f klientem p\u0159es DNS podle n\u00e1zv\u016f uzl\u016f, kter\u00e1 umo\u017e\u0148uje obej\u00edt se bez v\u00fd\u010dtu v\u0161ech hostitel\u016f v nastaven\u00ed.\n<li class=\"l\"> Byla p\u0159id\u00e1na podpora pl\u00e1nov\u00e1n\u00ed spu\u0161t\u011bn\u00ed <noindex><a rel=\"nofollow\" href=\"https:\/\/issues.apache.org\/jira\/browse\/YARN-5220\">opportunistick\u00fdch kontejner\u016f<\/a><\/noindex> p\u0159es centralizovan\u00fd spr\u00e1vce zdroj\u016f (ResourceManager), v\u010detn\u011b mo\u017enosti rozd\u011blov\u00e1n\u00ed kontejner\u016f s ohledem na zat\u00ed\u017een\u00ed ka\u017ed\u00e9ho uzlu.\n<li class=\"l\"> Byl p\u0159id\u00e1n katalog aplikac\u00ed YARN (Yet Another Resource Negotiator) s mo\u017enost\u00ed vyhled\u00e1v\u00e1n\u00ed.\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53476\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u043b\u0443\u0442\u043e\u0440\u0430 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u044f Apache Software Foundation \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u043b\u0438\u0437 Apache Hadoop 3.3.0, \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u043e\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u0431\u043e\u043b\u044c\u0448\u0438\u0445 \u043e\u0431\u044a\u0451\u043c\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u043f\u0430\u0440\u0430\u0434\u0438\u0433\u043c\u044b map\/reduce, \u043f\u0440\u0438 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0437\u0430\u0434\u0430\u0447\u0430 \u0434\u0435\u043b\u0438\u0442\u0441\u044f \u043d\u0430 \u043c\u043d\u043e\u0436\u0435\u0441\u0442\u0432\u043e \u0431\u043e\u043b\u0435\u0435 \u043c\u0435\u043b\u043a\u0438\u0445 \u043e\u0431\u043e\u0441\u043e\u0431\u043b\u0435\u043d\u043d\u044b\u0445 \u0444\u0440\u0430\u0433\u043c\u0435\u043d\u0442\u043e\u0432, \u043a\u0430\u0436\u0434\u044b\u0439 \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0437\u0430\u043f\u0443\u0449\u0435\u043d \u043d\u0430 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u043c \u0443\u0437\u043b\u0435 \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u0430. \u0425\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0435 \u043d\u0430 \u0431\u0430\u0437\u0435 Hadoop \u043c\u043e\u0436\u0435\u0442 \u043e\u0445\u0432\u0430\u0442\u044b\u0432\u0430\u0442\u044c \u0442\u044b\u0441\u044f\u0447\u0438 \u0443\u0437\u043b\u043e\u0432 \u0438 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-90548","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u043e\u0441\u043b\u0435 \u043f\u043e\u043b\u0443\u0442\u043e\u0440\u0430 \u043b\u0435\u0442 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