{"id":143995,"date":"2025-09-22T23:11:55","date_gmt":"2025-09-22T21:11:55","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-varnish-cache-8-0-smena-imeni-proekta-iz-za-torgovoj-marki"},"modified":"2025-09-22T23:11:55","modified_gmt":"2025-09-22T21:11:55","slug":"vypusk-varnish-cache-8-0-smena-imeni-proekta-iz-za-torgovoj-marki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/vypusk-varnish-cache-8-0-smena-imeni-proekta-iz-za-torgovoj-marki","title":{"rendered":"Udgivelse af Varnish-Cache 8.0. Projektets navn er \u00e6ndret p\u00e5 grund af varem\u00e6rker.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Poul-Henning Kamp, en af de kendte udviklere af FreeBSD, som har deltaget i oprettelsen af systemer som MD5crypt, GEOM, GBDE og FreeBSD Jail, har pr\u00e6senteret udgivelsen af Varnish-Cache 8.0, en h\u00f8jtydende cache-proxy designet til at fungere som en HTTP-accelerator. Projektet distribueres under BSD-licensen og har tidligere v\u00e6ret brugt i projekter som Facebook, Wikimedia, Twitter, Vimeo, Tumblr, New York Times og Guardian.    <\/p>\n<p>Den h\u00f8je ydeevne opn\u00e5s gennem brugen af flertr\u00e5dethed, multiplexing af forbindelser ved hj\u00e6lp af epoll\/kqueue-opkald og anvendelse af systemopkald som sendfile og madvise. P\u00e5 almindeligt udstyr kan den h\u00e5ndtere en str\u00f8m p\u00e5 20 Gbps og give en hastighedsfor\u00f8gelse p\u00e5 300-1000 gange. Cachen opbevares i virtuel hukommelse. En s\u00e6rlig funktion ved Varnish er evnen til at samle de leverede sider i dele p\u00e5 frontend-siden, hvilket definerer logikken for samlingen p\u00e5 ESI (Edge Side Includes) sprog.     <\/p>\n<p>Varnish tilbyder ogs\u00e5 et fleksibelt konfigurationssystem, som tillader brug af indsatser i C-sprog. Konfigurationen anvender et specielt VCL-sprog, som derefter kompileres til eksekverbar bin\u00e6r kode. VCL g\u00f8r det muligt at beskrive politikken for behandlingen af foresp\u00f8rgsler: at definere det behandlede indhold, hvor det skal hentes fra, og hvordan det skal transformeres f\u00f8r levering. Den grundl\u00e6ggende funktionalitet kan udvides via moduler. Der er mekanismer til belastningsbalancering, overv\u00e5gning af tilstand og responstid fra backend.<a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/da\/server\/\"   title=\"servere\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1786\">servere<\/a>.        <\/p>\n<p>Sammen med annonceringen af den nye version er der bekendtgjort et kommende \u00e6ndring af projektets navn. Fra den n\u00e6ste udgave vil \"Varnish Cache\" blive omd\u00f8bt til \"Vinyl Cache\" p\u00e5 grund af krav relateret til varem\u00e6rket Varnish, der er registreret p\u00e5 virksomheden Varnish Software, som deltog i udviklingen og \u00f8konomisk st\u00f8ttede det \u00e5bne projekt \"Varnish Cache\". For 22 \u00e5r siden blev udviklingen af Varnish Cache finansieret af den norske avis Verdens Gang, som ansatte Paul-Henning Kamp til at skrive koden og firmaet Linpro til at f\u00f8lge det op. Senere blev Linpro til Varnish Software. Det viste sig, at navnet Varnish Cache blev associeret med det \u00e5bne projekt, mens Varnish Software blev betragtet som den kommercielle virksomhed.    <\/p>\n<p>Muligheden for at bruge navnet Varnish i titlen p\u00e5 det \u00e5bne projekt blev givet p\u00e5 baggrund af en mundtlig aftale, og Paul-Henning Kamp gjorde ikke krav p\u00e5 at f\u00e5 indg\u00e5et en skriftlig aftale. Indtil for nylig levede virksomheden og det \u00e5bne projekt fredeligt side om side, men s\u00e5 blandede intellektuelle ejendom advokaterne sig ind, hvis position er, at man ikke kan bruge navnet Varnish Cache i nogen sammenh\u00e6ng uden udtrykkeligt tilladelse.     <\/p>\n<p>Da behovet for at f\u00e5 tilladelse fra Varnish Software forhindrede nogle deltagere i at deltage i udviklingen, blev der gjort et fors\u00f8g p\u00e5 at forhandle, men advokaterne forts\u00e6tter med at h\u00e6vde, at navnet Varnish Cache tilh\u00f8rer Varnish Software, og de tillader dets brug af det \u00e5bne projekt under visse begr\u00e6nsninger og mulighed for at nedl\u00e6gge veto. Varnish Cache er ikke klar til at acceptere disse begr\u00e6nsninger, da det har til hensigt at forts\u00e6tte med at udvikle sig som et uafh\u00e6ngigt projekt.    <\/p>\n<p>Efter navne\u00e6ndringen planl\u00e6gger man at oprette et non-profit partnerskab for yderligere koordinering af udviklingen, som vil operere under Danmarks jurisdiktion. I vedt\u00e6gterne er det fastsl\u00e5et, at organisationen ikke m\u00e5 eje og forvalte penge. I blandt m\u00e5lene er der angivet: udvikling, vedligeholdelse og distribution af software. Enhver, der \u00f8nsker det, kan tilslutte sig organisationen efter godkendelse fra de eksisterende deltagere. Der vil blive dannet et udvalg til at styre, valgt af deltagerne.            <\/p>\n<p>De vigtigste nyheder i Varnish-Cache 8.0:  <\/p>\n<ul>\n<li class=\"l\"> I baggrundsprocessen varnishd, der modtager anmodninger fra kunder, videresender anmodninger til backend og cache svar, er parameteren \"uncacheable_ttl\" implementeret for at bestemme levetiden (TTL) for objekter, der er markeret som ikke-cachebare.\n<li class=\"l\"> Standardv\u00e6rdien for parameteren ban_any_variant er sat til 0, hvor bloklisten kun anvendes p\u00e5 matchende objekter.\n<li class=\"l\"> Overf\u00f8rsel af stop-kommandoen f\u00f8rer nu til ventetid indtil alle k\u00f8rende transaktioner (VCL-behandlere) er afsluttet.\n<li class=\"l\"> Der er tilf\u00f8jet st\u00f8tte til at tilg\u00e5 nogle runtime-parametre fra VCL-kode ved hj\u00e6lp af syntaksen \"param.\".\n<li class=\"l\"> Muligheden for at overvride logikken til at danne svar \"304 Not Modified\" er blevet tilf\u00f8jet.\n<li class=\"l\"> For\u00e6ldede VMOD-funktioner std.real2integer(), std.real2time(), std.time2integer() og std.time2real() er blevet fjernet, og i stedet skal syntaksen \"std.integer(real=std.round(...), fallback=...)\" eller \"std.integer(time=..., fallback=...)\" anvendes. Funktionen format_rfc1123() er blevet omd\u00f8bt til cookie.format_date().\n<li class=\"l\"> I VUT og varnishtest er der tilf\u00f8jet logning af stack traces til loggen efter et krasj.\n<li class=\"l\"> Der er tilf\u00f8jet en variabel \"obj.last_hit\" til v\u00e6rkt\u00f8jet varnishadm, som kan bruges til at organisere sletningen af objekter fra cachen, som ikke er blevet tilg\u00e5et i lang tid.\n<li class=\"l\"> Der er tilf\u00f8jet nye statistiske t\u00e6llere i v\u00e6rkt\u00f8jet varnishstat: VCP.ref_hit, VCP.ref_miss, transit_stored og transit_buffered.         <\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=63923\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u043b-\u0425\u0435\u043d\u0438\u043d\u0433 \u041a\u0430\u043c\u043f (Poul-Henning Kamp), \u043e\u0434\u0438\u043d \u0438\u0437 \u0438\u0437\u0432\u0435\u0441\u0442\u043d\u044b\u0445 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 FreeBSD, \u0443\u0447\u0430\u0441\u0442\u0432\u043e\u0432\u0430\u0432\u0448\u0438\u0439 \u0432 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u0438 \u0442\u0430\u043a\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c, \u043a\u0430\u043a MD5crypt, GEOM, GBDE \u0438 FreeBSD Jail, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u0440\u0435\u043b\u0438\u0437 Varnish-Cache 8.0, \u0432\u044b\u0441\u043e\u043a\u043e\u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u043a\u044d\u0448\u0438\u0440\u0443\u044e\u0449\u0435\u0433\u043e \u043f\u0440\u043e\u043a\u0441\u0438, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b \u0432 \u0440\u043e\u043b\u0438 HTTP-\u0430\u043a\u0441\u0435\u043b\u0435\u0440\u0430\u0442\u043e\u0440\u0430. \u041f\u0440\u043e\u0435\u043a\u0442 \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 \u0438 \u0432 \u0441\u0432\u043e\u0451 \u0432\u0440\u0435\u043c\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043b\u0441\u044f \u0432 \u043f\u0440\u043e\u0435\u043a\u0442\u0430\u0445 Facebook, Wikimedia, Twitter, Vimeo, Tumblr, New York Times \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-143995","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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