{"id":54637,"date":"2019-12-31T00:00:00","date_gmt":"2019-12-30T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/novaya-versiya-subd-arangodb-3-6"},"modified":"2020-02-18T14:02:40","modified_gmt":"2020-02-18T11:02:40","slug":"novaya-versiya-subd-arangodb-3-6","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sv\/blog\/news\/novaya-versiya-subd-arangodb-3-6","title":{"rendered":"Den nya versionen av databashanteringssystemet ArangoDB 3.6","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/arangodb\/arangodb\/releases\/tag\/v3.6.0\">Publicerad<\/a><\/noindex> utg\u00e5van av en m\u00e5ngsidig databashanterare <noindex><a rel=\"nofollow\" href=\"https:\/\/www.arangodb.com\">ArangoDB 3.6<\/a><\/noindex>, som tillhandah\u00e5ller flexibla modeller f\u00f6r lagring av dokument, grafer och nyckel-v\u00e4rde-data. Arbetet med databasen sker genom ett SQL-liknande fr\u00e5gespr\u00e5k <noindex><a rel=\"nofollow\" href=\"https:\/\/www.arangodb.com\/aqltutorial\/\">AQL<\/a><\/noindex> eller via speciella till\u00e4gg p\u00e5 JavaScript. Metoderna f\u00f6r datalagring uppfyller ACID-kraven (atomiskhet, konsistens, isolering, h\u00e5llbarhet), st\u00f6djer transaktioner och erbjuder b\u00e5de horisontell och vertikal skalbarhet. Hanteringen av databashanteraren kan g\u00f6ras via ett webgr\u00e4nssnitt eller en kommandoradsklient <noindex><a rel=\"nofollow\" href=\"https:\/\/www.arangodb.com\/docs\/3.6\/programs-arangosh.html\">ArangoSH<\/a><\/noindex>. Koden f\u00f6r ArangoDB <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/triAGENS\/ArangoDB\">sprids<\/a><\/noindex> \u00e4r licensierad under Apache 2. Projektet \u00e4r skrivet i C och JavaScript.<\/p>\n<p>Nyckelfunktioner f\u00f6r ArangoDB:\n<\/p>\n<ul>\n<li class=\"l\"> M\u00f6jlighet att klara sig utan att definiera datalagringsschema (Schema-free) \u2013 data struktureras i form av dokument, d\u00e4r metadata och informationsstruktur \u00e4r \u00e5tskilda fr\u00e5n anv\u00e4ndardata;\n<\/li>\n<li class=\"l\"> St\u00f6d f\u00f6r att anv\u00e4nda ArangoDB som server f\u00f6r webbaserade applikationer p\u00e5 JavaScript med m\u00f6jlighet att n\u00e5 databasen via REST\/Web API;\n<\/li>\n<li class=\"l\"> Anv\u00e4ndning av JavaScript f\u00f6r webbl\u00e4sarapplikationer som interagerar med databasen och f\u00f6r handlare som k\u00f6rs p\u00e5 databashanteraren;\n<\/li>\n<li class=\"l\"> Multitr\u00e5dad arkitektur som distribuerar belastningen \u00f6ver alla CPU-k\u00e4rnor;\n<\/li>\n<li class=\"l\"> Flexibel datalagringsmodell d\u00e4r nyckel-v\u00e4rde-par, dokument och parametrar som definierar relationer mellan poster kan kombineras (det finns verktyg f\u00f6r att traversera grafens noder);\n<li class=\"l\"> Olika datamodeller (dokument, grafer och nyckel-v\u00e4rde-kopplingar) kan blandas i en enda fr\u00e5ga, vilket f\u00f6renklar aggregeringen av heterogen data;\n<li class=\"l\"> St\u00f6d f\u00f6r sammanslagning av fr\u00e5gor (JOIN);\n<\/li>\n<li class=\"l\"> M\u00f6jlighet att v\u00e4lja typ av index som passar uppgifterna (till exempel kan ett index anv\u00e4ndas f\u00f6r fulltexts\u00f6kning);\n<\/li>\n<li class=\"l\"> Anpassningsbar tillf\u00f6rlitlighet: applikationen kan sj\u00e4lv best\u00e4mma vad som \u00e4r viktigare: h\u00f6gre tillf\u00f6rlitlighet eller h\u00f6gre prestanda;\n<\/li>\n<li class=\"l\"> Ett effektivt lagringssystem som fullt ut utnyttjar moderna h\u00e5rdvarans m\u00f6jligheter (till exempel SSD-enheter) och kan anv\u00e4nda stora cache-minnen;\n<\/li>\n<li class=\"l\"> Transaktioner: m\u00f6jlighet att k\u00f6ra fr\u00e5gor samtidigt f\u00f6r flera dokument eller samlingar med valfri transaktionskonsistens och isolering;\n<\/li>\n<li class=\"l\"> St\u00f6d f\u00f6r replikering och sharding: m\u00f6jlighet att skapa master-slave-konfigurationer och f\u00f6rdela dataset p\u00e5 olika servrar baserat p\u00e5 specifika kriterier;\n<li class=\"l\"> F\u00f6r skapande av mikrotj\u00e4nster tillhandah\u00e5lls ett JavaScript-ramverk <noindex><a rel=\"nofollow\" href=\"https:\/\/www.arangodb.com\/foxx\">Foxx<\/a><\/noindex>, som k\u00f6rs inuti databasservern med direkt \u00e5tkomst till data.\n<\/li>\n<\/ul>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/www.arangodb.com\/docs\/devel\/release-notes-new-features36.html\">\u00c4ndringar<\/a><\/noindex>, som erbjuds i versionen ArangoDB 3.6:<\/p>\n<ul>\n<li class=\"l\"> Optimering av prestanda f\u00f6r underfr\u00e5gor samt operationer UPDATE och REPLACE har genomf\u00f6rts;\n<li class=\"l\"> M\u00f6jlighet till parallell exekvering av AQL-fr\u00e5gor har implementerats, vilket g\u00f6r att insamlingstiden f\u00f6r data som distribueras \u00f6ver olika noder i klustret kan minskas;\n<li class=\"l\"> Implementering av f\u00f6rdr\u00f6jd materialisering av dokument har genomf\u00f6rts, vilket i vissa situationer eliminerar behovet av att helt extrahera irrelevanta dokument;\n<li class=\"l\"> Tidigt avvisande av dokument som inte uppfyller det angivna filtret s\u00e4kras vid genoms\u00f6kning av dokument;\n<li class=\"l\"> ArangoSearch-motorn f\u00f6r fulltext s\u00f6kning har f\u00f6rb\u00e4ttrats, som nu st\u00f6der rankning med h\u00e4nsyn till datalikhet. St\u00f6d f\u00f6r en analysator f\u00f6r automatisk komplettering av fr\u00e5gor har lagts till, och funktionerna TOKENS() och PHRASE() har implementerats f\u00f6r dynamisk formulering av s\u00f6kfr\u00e5gor;\n<li class=\"l\"> Inst\u00e4llningen maxRuntime har lagts till f\u00f6r att selektivt begr\u00e4nsa k\u00f6rningstiden f\u00f6r fr\u00e5gor;\n<li class=\"l\"> En ny option &#171;&#8212;query.optimizer-rules&#187; har lagts till f\u00f6r att styra aktiveringen av vissa optimeringar vid fr\u00e5ga behandling;\n<li class=\"l\"> M\u00f6jligheterna f\u00f6r att organisera klustrets arbete har ut\u00f6kats. En ny option &#171;&#8212;cluster.upgrade&#187; har lagts till f\u00f6r att v\u00e4lja uppgraderingsl\u00e4ge f\u00f6r noderna i klustret;\n<li class=\"l\"> St\u00f6d f\u00f6r TLS 1.3 f\u00f6r kryptering av kommunikationskanalen mellan klient och server har lagts till (standard \u00e4r att klienten forts\u00e4tter att anv\u00e4nda TLS 1.2).\n<\/ul>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>K\u00e4lla: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52119\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043c\u043d\u043e\u0433\u043e\u0446\u0435\u043b\u0435\u0432\u043e\u0439 \u0421\u0423\u0411\u0414 ArangoDB 3.6, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0439 \u0433\u0438\u0431\u043a\u0438\u0435 \u043c\u043e\u0434\u0435\u043b\u0438 \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u043e\u0432, \u0433\u0440\u0430\u0444\u043e\u0432 \u0438 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0444\u043e\u0440\u043c\u0430\u0442\u0435 \u043a\u043b\u044e\u0447-\u0437\u043d\u0430\u0447\u0435\u043d\u0438\u0435. \u0420\u0430\u0431\u043e\u0442\u0430 \u0441 \u0431\u0430\u0437\u043e\u0439 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 SQL-\u043f\u043e\u0434\u043e\u0431\u043d\u044b\u0439 \u044f\u0437\u044b\u043a \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 AQL \u0438\u043b\u0438 \u0447\u0435\u0440\u0435\u0437 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0435 \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 JavaScript. \u041c\u0435\u0442\u043e\u0434\u044b \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0442 \u0442\u0440\u0435\u0431\u043e\u0432\u0430\u043d\u0438\u044f\u043c ACID (\u0430\u0442\u043e\u043c\u0430\u0440\u043d\u043e\u0441\u0442\u044c, \u0441\u043e\u0433\u043b\u0430\u0441\u043e\u0432\u0430\u043d\u043d\u043e\u0441\u0442\u044c, \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0441\u0442\u044c, \u043d\u0430\u0434\u0435\u0436\u043d\u043e\u0441\u0442\u044c), \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0442 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0438 \u0438 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u044e\u0442 \u043a\u0430\u043a \u0433\u043e\u0440\u0438\u0437\u043e\u043d\u0442\u0430\u043b\u044c\u043d\u0443\u044e, \u0442\u0430\u043a \u0438 \u0432\u0435\u0440\u0442\u0438\u043a\u0430\u043b\u044c\u043d\u0443\u044e \u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u0443\u0435\u043c\u043e\u0441\u0442\u044c. \u0423\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435 \u0421\u0423\u0411\u0414 [&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-54637","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u043c\u043d\u043e\u0433\u043e\u0446\u0435\u043b\u0435\u0432\u043e\u0439 \u0421\u0423\u0411\u0414 ArangoDB.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" 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