{"id":55405,"date":"2020-01-19T00:00:00","date_gmt":"2020-01-18T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/pervyj-reliz-wzd-1-0-0-servera-kompaktnogo-hraneniya-melkih-fajlov"},"modified":"2020-02-18T14:03:30","modified_gmt":"2020-02-18T11:03:30","slug":"pervyj-reliz-wzd-1-0-0-servera-kompaktnogo-hraneniya-melkih-fajlov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/pervyj-reliz-wzd-1-0-0-servera-kompaktnogo-hraneniya-melkih-fajlov","title":{"rendered":"F\u00f8rste udgave af wZD 1.0.0, servere til kompakt opbevaring af sm\u00e5 filer","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/eltaline\/wzd\/releases\/tag\/v1.0.0\">Tilg\u00e6ngelig<\/a><\/noindex> f\u00f8rste udgave <noindex><a rel=\"nofollow\" href=\"https:\/\/wzd.dev\/\">wZD 1.0.0<\/a><\/noindex> \u2014 servere til effektiv opbevaring af et stort antal filer i et kompakt format, som udefra ser ud som en almindelig WebDAV-server. Til opbevaring bruges en modificeret version <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/eltaline\/bolt\">BoltDB<\/a><\/noindex>. Projektkoden er skrevet i Go-sproget og <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/eltaline\/wzd\/\">distribueres<\/a><\/noindex> under BSD-licensen.<\/p>\n<p>Server <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/eltaline\/wzd\/blob\/master\/README-RUS.md\">det muligt<\/a><\/noindex> kan betydeligt reducere antallet af sm\u00e5 filer p\u00e5 almindelige eller klyngede filsystemer med fuld underst\u00f8ttelse af l\u00e5sning. Den underst\u00f8ttede wZD-klynge opbevarer omkring 250 millioner sm\u00e5 filer fordelt p\u00e5 15 millioner mapper i klynge-FS <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/moosefs\/moosefs\">MooseFS<\/a><\/noindex>.<\/p>\n<p>wZD giver mulighed for at flytte (arkivere) indholdet af mapper til arkiver i BoltDB-format og derefter distribuere disse filer fra disse arkiver (eller inds\u00e6tte filer i arkiverne med PUT-metoden), hvilket v\u00e6sentligt reducerer antallet af filer i FS og mindsker overhead-omkostningerne til opbevaring af metadata. For at forbedre effektiviteten af behandlingen af store filer kan s\u00e5danne filer opbevares separat fra Bolt-arkiverne. En s\u00e5dan tilgang muligg\u00f8r opbevaring af et enormt antal sm\u00e5 filer uden at ramme gr\u00e6nsen for antallet af inode i filsystemet. <\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/raw.githubusercontent.com\/eltaline\/wzd\/master\/images\/wzd-arch.png\"><img decoding=\"async\" alt=\"F\u00f8rste udgave af wZD 1.0.0, servere til kompakt opbevaring af sm\u00e5 filer\" src=\"\/wp-content\/uploads\/2020\/01\/3a9804bd6cd8e4a5f8033c8a19d7cc37.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Serveren kan ogs\u00e5 bruges som NoSQL-database til n\u00f8gle\/v\u00e6rdi-data (med sharding baseret p\u00e5 mappestrukturen) eller til at distribuere forudgenererede HTML- eller JSON-dokumenter fra databasen. I forhold til ydeevne f\u00f8rer brug af Bolt-arkiver til en stigning i latensen p\u00e5 cirka 20-25% ved l\u00e6sning og 40-50% ved skrivning. Jo mindre filen er, desto mindre er forskellene i latens.<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/raw.githubusercontent.com\/eltaline\/wzd\/master\/images\/get-put-32M.png\"><img decoding=\"async\" alt=\"F\u00f8rste udgave af wZD 1.0.0, servere til kompakt opbevaring af sm\u00e5 filer\" src=\"\/wp-content\/uploads\/2020\/01\/a76146504e18bfdf416f69d3022db5e4.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Vigtige <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/eltaline\/wzd\/blob\/master\/README-RUS.md\">muligheder<\/a><\/noindex>:<\/p>\n<ul>\n<li> Multitr\u00e5dning;\n<li> Multiserverops\u00e6tning, der sikrer fejl tolerance og belastningsbalancering;\n<li> Maksimal gennemsigtighed for brugerne eller udvikleren;\n<li> Underst\u00f8ttede HTTP-metoder: GET, HEAD, PUT og DELETE;\n<li> Styring af adf\u00e6rd ved l\u00e6sning og skrivning gennem klientoverskrifter;\n<li> Underst\u00f8ttelse af fleksibelt konfigurerbare virtuelle v\u00e6rter;\n<li> Underst\u00f8ttelse af CRC-integritet ved skrivning\/l\u00e6sning;\n<li> Halvdynamiske buffere for minimal hukommelsesforbrug og optimal justering af netv\u00e6rksydelse;\n<li> Forsinket pakning af data;\n<li> Derudover tilbydes en multitr\u00e5det arkiveringsfunktion <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/eltaline\/wza\/blob\/master\/README-RUS.md\">wZA<\/a><\/noindex> til at flytte filer til Bolt-arkiver uden at stoppe tjenesten.\n<\/ul>\n<p>Nogle begr\u00e6nsninger i den nuv\u00e6rende version: ingen st\u00f8tte til Multipart, POST-metoden, HTTPS-protokollen, bindings til programmeringssprog, rekursiv sletning af mapper, ingen st\u00f8tte til montering af strukturen i filsystemet via WebDAV eller FUSE, filer gemmes under en enkelt systembruger. Lagringsformatet er bundet til arkitekturen og er ikke portabelt mellem Little Endian og Big Endian-systemer. Selvom serveren wZD implementerer st\u00f8tte til HTTP-protokollen, skal den k\u00f8res bag en reverse proxy, s\u00e5som nginx og haproxy.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Kilde: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=52214\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0414\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u043f\u0435\u0440\u0432\u044b\u0439 \u0432\u044b\u043f\u0443\u0441\u043a wZD 1.0.0 &#8212; \u0441\u0435\u0440\u0432\u0435\u0440\u0430 \u0434\u043b\u044f \u044d\u0444\u0444\u0435\u043a\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0431\u043e\u043b\u044c\u0448\u043e\u0433\u043e \u0447\u0438\u0441\u043b\u0430 \u0444\u0430\u0439\u043b\u043e\u0432 \u0432 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u043c \u0432\u0438\u0434\u0435, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0441\u043d\u0430\u0440\u0443\u0436\u0438 \u0432\u044b\u0433\u043b\u044f\u0434\u0438\u0442 \u043a\u0430\u043a \u043e\u0431\u044b\u0447\u043d\u044b\u0439 WebDAV-\u0441\u0435\u0440\u0432\u0435\u0440. \u0414\u043b\u044f \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u043c\u043e\u0434\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0430\u044f \u0432\u0435\u0440\u0441\u0438\u044f BoltDB. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Go \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 BSD. \u0421\u0435\u0440\u0432\u0435\u0440 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0441\u043e\u043a\u0440\u0430\u0442\u0438\u0442\u044c \u043a\u043e\u043b\u0438\u0447\u0435\u0441\u0442\u0432\u043e \u043c\u0430\u043b\u0435\u043d\u044c\u043a\u0438\u0445 \u0444\u0430\u0439\u043b\u043e\u0432 \u043d\u0430 \u043e\u0431\u044b\u0447\u043d\u044b\u0445 \u0438\u043b\u0438 \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u043d\u044b\u0445 \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 \u043f\u043e\u043b\u043d\u043e\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 [&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-55405","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - 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