{"id":7607,"date":"2021-03-17T10:15:42","date_gmt":"2021-03-17T09:15:42","guid":{"rendered":"https:\/\/webhosting.de\/?p=7607"},"modified":"2021-03-17T10:15:44","modified_gmt":"2021-03-17T09:15:44","slug":"cloud-computing-netflix-udvikler-ny-komplet-ny-kodningsplatform","status":"publish","type":"post","link":"https:\/\/webhosting.de\/da\/cloud-computing-netflix-entwickelt-komplett-neue-encoding-plattform\/","title":{"rendered":"Cloud computing - Netflix udvikler en helt ny kodningsplatform"},"content":{"rendered":"

Streamingudbyderen Netflix gemmer sine videoer med henblik p\u00e5 optimal levering ved forskellige internethastigheder og afspilningsenheder i forskellige Opl\u00f8sninger, kvalitetsniveauer og formater<\/a>. Udviklet var kodningsplatformen \"Reloaded\" i omkring syv \u00e5r. I mellemtiden er Netflix' belastning imidlertid blevet ti gange st\u00f8rre takket v\u00e6re en ekspansion til flere markeder og betydeligt mere indhold. If\u00f8lge Netflix' tekniske blog har dette skabt problemer. De ansvarlige udviklere har derfor udviklet en ny kodningsplatform kaldet \"Cosmos<\/a>\" oprettet.<\/p>\n\n\n\n

Som Frank San Miguel forklarer p\u00e5 vegne af Cosmos-holdet, blev Reloaded's gamle arkitektur udelukkende designet til at skalere lyd- og videoindhold s\u00e5 godt som muligt. Den monolitiske arkitektur gjorde det imidlertid meget vanskeligere at indf\u00f8re nye funktioner. Desuden er det team, der er ansvarligt for kodningen, vokset betydeligt i l\u00f8bet af de sidste par \u00e5r, hvilket bet\u00f8d, at is\u00e6r nye medlemmer stort set ikke havde noget overblik over den for\u00e6ldede Reloaded-arkitektur. Ansvaret for dette var f\u00f8rst og fremmest applikationslogikken med infrastrukturkoden.<\/p>\n\n\n\n

Microservices-arkitekturer som en rollemodel<\/h2>\n\n\n\n

P\u00e5 grund af de store problemer besluttede teamet sig for en helt ny udvikling i stedet for en revision af den eksisterende arkitektur. Den moderne microservices-arkitektur blev valgt som model. Ud over de egentlige kodningsopgaver giver dette mulighed for modulopbygget tilf\u00f8jelse af yderligere tjenester, herunder et v\u00e6rkt\u00f8j til overv\u00e5gning og v\u00e6rkt\u00f8jer til den kontinuerlige leveringsr\u00f8rledning. Dette skulle g\u00f8re det muligt at udvikle ny kode direkte i produktionsmilj\u00f8et.Bidrag<\/a> kan importeres uden yderligere indgreb.<\/p>\n\n\n\n

P\u00e5 trods af lighederne er Cosmos-tjenester dog ikke mikrotjenester. Applikationsdata og deres afh\u00e6ngigheder er ogs\u00e5 adskilt fra andre systemer i Netflix-kodningsv\u00e6rkt\u00f8jet, ligesom i mikrotjenester, men tjenesterne bruger klart definerede API'er til at udveksle data.<\/p>\n\n\n\n

Det meget beregningsintensive arbejde, der udf\u00f8res sidel\u00f8bende med kodningen, indl\u00e6ser sine afh\u00e6ngigheder som Docker-containere. Afh\u00e6ngigt af opgavens st\u00f8rrelse er der tale om flere tusinde forskellige containere p\u00e5 Netflix, som opbevares i en cloud computing<\/a> milj\u00f8. En k\u00f8rsel tager ofte flere dage for s\u00e6rligt store filer, if\u00f8lge udviklerne.<\/p>\n\n\n\n

Udviklingen af Cosmos begyndte i 2018, og de f\u00f8rste tests i produktmilj\u00f8et startede i 2019. Den egentlige udrulning af systemet, som derefter helt vil erstatte Reloaded-kodningsplatformen, vil finde sted i indev\u00e6rende \u00e5r 2021.<\/p>","protected":false},"excerpt":{"rendered":"

Netflix har fuldst\u00e6ndig omdesignet sin kodningsarkitektur efter ca. syv \u00e5r p\u00e5 grund af nye krav.<\/p>","protected":false},"author":2,"featured_media":7608,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_crdt_document":"","inline_featured_image":false,"footnotes":""},"categories":[681],"tags":[993],"class_list":["post-7607","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cloud_computing","tag-netflix"],"acf":[],"_wp_attached_file":null,"_wp_attachment_metadata":null,"litespeed-optimize-size":null,"litespeed-optimize-set":null,"_elementor_source_image_hash":null,"_wp_attachment_image_alt":null,"stockpack_author_name":null,"stockpack_author_url":null,"stockpack_provider":null,"stockpack_image_url":null,"stockpack_license":null,"stockpack_license_url":null,"stockpack_modification":null,"color":null,"original_id":null,"original_url":null,"original_link":null,"unsplash_location":null,"unsplash_sponsor":null,"unsplash_exif":null,"unsplash_attachment_metadata":null,"_elementor_is_screenshot":null,"surfer_file_name":null,"surfer_file_original_url":null,"envato_tk_source_kit":null,"envato_tk_source_index":null,"envato_tk_manifest":null,"envato_tk_folder_name":null,"envato_tk_builder":null,"envato_elements_download_event":null,"_menu_item_type":null,"_menu_item_menu_item_parent":null,"_menu_item_object_id":null,"_menu_item_object":null,"_menu_item_target":null,"_menu_item_classes":null,"_menu_item_xfn":null,"_menu_item_url":null,"_trp_menu_languages":null,"rank_math_primary_category":"681","rank_math_title":null,"inline_featured_image":null,"_yoast_wpseo_primary_category":"681","rank_math_schema_blogposting":null,"rank_math_schema_videoobject":null,"_oembed_049c719bc4a9f89deaead66a7da9fddc":null,"_oembed_time_049c719bc4a9f89deaead66a7da9fddc":null,"_yoast_wpseo_focuskw":null,"_yoast_wpseo_linkdex":null,"_oembed_27e3473bf8bec795fbeb3a9d38489348":null,"_oembed_c3b0f6959478faf92a1f343d8f96b19e":null,"_trp_translated_slug_en_us":null,"_wp_desired_post_slug":null,"_yoast_wpseo_title":null,"tldname":null,"tldpreis":null,"tldrubrik":null,"tldpolicylink":null,"tldsize":null,"tldregistrierungsdauer":null,"tldtransfer":null,"tldwhoisprivacy":null,"tldregistrarchange":null,"tldregistrantchange":null,"tldwhoisupdate":null,"tldnameserverupdate":null,"tlddeletesofort":null,"tlddeleteexpire":null,"tldumlaute":null,"tldrestore":null,"tldsubcategory":null,"tldbildname":null,"tldbildurl":null,"tldclean":null,"tldcategory":null,"tldpolicy":null,"tldbesonderheiten":null,"tld_bedeutung":null,"_oembed_d167040d816d8f94c072940c8009f5f8":null,"_oembed_b0a0fa59ef14f8870da2c63f2027d064":null,"_oembed_4792fa4dfb2a8f09ab950a73b7f313ba":null,"_oembed_33ceb1fe54a8ab775d9410abf699878d":null,"_oembed_fd7014d14d919b45ec004937c0db9335":null,"_oembed_21a029d076783ec3e8042698c351bd7e":null,"_oembed_be5ea8a0c7b18e658f08cc571a909452":null,"_oembed_a9ca7a298b19f9b48ec5914e010294d2":null,"_oembed_f8db6b27d08a2bb1f920e7647808899a":null,"_oembed_168ebde5096e77d8a89326519af9e022":null,"_oembed_cdb76f1b345b42743edfe25481b6f98f":null,"_oembed_87b0613611ae54e86e8864265404b0a1":null,"_oembed_27aa0e5cf3f1bb4bc416a4641a5ac273":null,"_oembed_time_27aa0e5cf3f1bb4bc416a4641a5ac273":null,"_tldname":null,"_tldclean":null,"_tldpreis":null,"_tldcategory":null,"_tldsubcategory":null,"_tldpolicy":null,"_tldpolicylink":null,"_tldsize":null,"_tldregistrierungsdauer":null,"_tldtransfer":null,"_tldwhoisprivacy":null,"_tldregistrarchange":null,"_tldregistrantchange":null,"_tldwhoisupdate":null,"_tldnameserverupdate":null,"_tlddeletesofort":null,"_tlddeleteexpire":null,"_tldumlaute":null,"_tldrestore":null,"_tldbildname":null,"_tldbildurl":null,"_tld_bedeutung":null,"_tldbesonderheiten":null,"_oembed_ad96e4112edb9f8ffa35731d4098bc6b":null,"_oembed_8357e2b8a2575c74ed5978f262a10126":null,"_oembed_3d5fea5103dd0d22ec5d6a33eff7f863":null,"_eael_widget_elements":null,"_oembed_0d8a206f09633e3d62b95a15a4dd0487":null,"_oembed_time_0d8a206f09633e3d62b95a15a4dd0487":null,"_aioseo_description":null,"_eb_attr":null,"_eb_data_table":null,"_oembed_819a879e7da16dd629cfd15a97334c8a":null,"_oembed_time_819a879e7da16dd629cfd15a97334c8a":null,"_acf_changed":null,"_wpcode_auto_insert":null,"_edit_last":"1","_edit_lock":"1615972544:1","_oembed_e7b913c6c84084ed9702cb4feb012ddd":"{{unknown}}","_oembed_bfde9e10f59a17b85fc8917fa7edf782":"