{"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\/pt\/blog\/news\/vypusk-varnish-cache-8-0-smena-imeni-proekta-iz-za-torgovoj-marki","title":{"rendered":"Lan\u00e7amento do Varnish-Cache 8.0. Mudan\u00e7a de nome do projeto devido a marca registrada","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Poul-Henning Kamp, um dos desenvolvedores mais conhecidos do FreeBSD, que participou da cria\u00e7\u00e3o de sistemas como MD5crypt, GEOM, GBDE e FreeBSD Jail, apresentou o lan\u00e7amento do Varnish-Cache 8.0, um proxy de cache de alto desempenho projetado para funcionar como acelerador HTTP. O projeto \u00e9 distribu\u00eddo sob a licen\u00e7a BSD e foi utilizado em projetos como Facebook, Wikimedia, Twitter, Vimeo, Tumblr, New York Times e Guardian.    <\/p>\n<p>A alta performance \u00e9 alcan\u00e7ada atrav\u00e9s do uso de multithreading, multiplexa\u00e7\u00e3o de conex\u00f5es com chamadas epoll\/kqueue e a utiliza\u00e7\u00e3o das chamadas de sistema sendfile e madvise. Pode processar um fluxo de 20 Gbps em hardware comum e garantir uma acelera\u00e7\u00e3o de resposta de 300 a 1000 vezes. O cache \u00e9 armazenado na mem\u00f3ria virtual. Uma caracter\u00edstica do Varnish \u00e9 a capacidade de compor p\u00e1ginas entregues em partes no lado do frontend, definindo a l\u00f3gica de composi\u00e7\u00e3o na linguagem ESI (Edge Side Includes).     <\/p>\n<p>O Varnish tamb\u00e9m oferece um sistema de configura\u00e7\u00e3o flex\u00edvel, permitindo o uso de inser\u00e7\u00f5es na linguagem C. Para configura\u00e7\u00e3o, utiliza uma linguagem especial chamada VCL, que \u00e9 ent\u00e3o compilada em c\u00f3digo bin\u00e1rio execut\u00e1vel. O VCL permite descrever a pol\u00edtica de tratamento da solicita\u00e7\u00e3o: definir o conte\u00fado a ser processado, de onde obt\u00ea-lo e como transform\u00e1-lo antes da entrega. A funcionalidade b\u00e1sica pode ser expandida atrav\u00e9s de m\u00f3dulos. Existem mecanismos de balanceamento de carga, monitoramento de estado e tempo de resposta do backend.<a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/pt\/server\/\"   title=\"servidores\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1786\">servidores<\/a>.        <\/p>\n<p>Juntamente com o an\u00fancio da nova vers\u00e3o, foi anunciado a iminente mudan\u00e7a de nome do projeto. A partir da pr\u00f3xima vers\u00e3o, o &#171;Varnish Cache&#187; ser\u00e1 renomeado para &#171;Vinyl Cache&#187; devido a reivindica\u00e7\u00f5es relacionadas \u00e0 marca registrada Varnish, registrada pela empresa Varnish Software, que participou do desenvolvimento e apoiou financeiramente o projeto aberto &#171;Varnish Cache&#187;. H\u00e1 22 anos, o desenvolvimento do Varnish Cache foi financiado pelo jornal noruegu\u00eas Verdens Gang, que contratou Paul-Henning Kamp para escrever o c\u00f3digo e a empresa Linpro para o suporte. Posteriormente, a empresa Varnish Software foi criada a partir da Linpro. Acabou que o nome Varnish Cache passou a ser associado ao projeto aberto e a Varnish Software \u00e0 empresa comercial.    <\/p>\n<p>A possibilidade de usar o nome Varnish no t\u00edtulo do projeto aberto foi concedida por meio de um acordo verbal, e Paul-Henning Kamp n\u00e3o insistiu na formaliza\u00e7\u00e3o de um acordo escrito. At\u00e9 recentemente, a empresa e o projeto aberto coexistiam pacificamente, mas ent\u00e3o entraram em cena advogados especializados em propriedade intelectual, cuja posi\u00e7\u00e3o \u00e9 que n\u00e3o se pode usar o nome Varnish Cache em qualquer contexto sem a devida autoriza\u00e7\u00e3o.     <\/p>\n<p>Como a necessidade de obter permiss\u00e3o da Varnish Software impediu alguns participantes de se juntarem ao desenvolvimento, houve uma tentativa de negocia\u00e7\u00e3o, mas os advogados continuam afirmando que o nome Varnish Cache pertence \u00e0 Varnish Software e eles permitem seu uso no projeto aberto sob certas condi\u00e7\u00f5es e com a possibilidade de veto. O Varnish Cache n\u00e3o est\u00e1 disposto a aceitar tais restri\u00e7\u00f5es, pois pretende continuar a se desenvolver como um projeto independente.    <\/p>\n<p>Ap\u00f3s a renomea\u00e7\u00e3o, para a coordena\u00e7\u00e3o do desenvolvimento, planeja-se criar uma parceria sem fins lucrativos, que operar\u00e1 sob a jurisdi\u00e7\u00e3o da Dinamarca. O estatuto estabelece que a organiza\u00e7\u00e3o n\u00e3o pode possuir ou administrar dinheiro. Entre os objetivos anunciados est\u00e3o: o desenvolvimento, suporte e distribui\u00e7\u00e3o de software. Qualquer pessoa pode se juntar \u00e0 organiza\u00e7\u00e3o ap\u00f3s a aprova\u00e7\u00e3o dos participantes existentes. Para a gest\u00e3o, ser\u00e1 formado um comit\u00ea eleito pelos membros.            <\/p>\n<p>As principais novidades do Varnish-Cache 8.0:  <\/p>\n<ul>\n<li class=\"l\"> No processo em segundo plano do varnishd, que recebe solicita\u00e7\u00f5es de clientes, envia solicita\u00e7\u00f5es para os backends e cacheia as respostas, foi implementado o par\u00e2metro &#171;uncacheable_ttl&#187; para definir o tempo de vida (TTL) de objetos marcados como n\u00e3o cache\u00e1veis.\n<li class=\"l\"> O valor do par\u00e2metro ban_any_variant est\u00e1 configurado como 0 por padr\u00e3o, onde a lista de bloqueio se aplica apenas \u00e0s variantes correspondentes dos objetos.\n<li class=\"l\"> A execu\u00e7\u00e3o do comando stop agora leva a uma espera pela conclus\u00e3o de todas as transa\u00e7\u00f5es em curso (processadores VCL).\n<li class=\"l\"> Foi adicionada a suporte para acesso a alguns par\u00e2metros de runtime a partir do c\u00f3digo VCL usando a sintaxe &#171;param.&lt;param_name&gt;&#187;.\n<li class=\"l\"> Foi adicionada a capacidade de sobreescrever a l\u00f3gica de forma\u00e7\u00e3o das respostas &#171;304 Not Modified&#187;.\n<li class=\"l\"> As fun\u00e7\u00f5es VMOD obsoletas std.real2integer(), std.real2time(), std.time2integer() e std.time2real() foram removidas, substituindo-as pela sintaxe &#171;std.integer(real=std.round(&#8230;), fallback=&#8230;)&#187; ou &#171;std.integer(time=&#8230;, fallback=&#8230;). A fun\u00e7\u00e3o format_rfc1123() foi renomeada para cookie.format_date().\n<li class=\"l\"> No VUT e varnishtest, foi implementado o registro de rastreamentos de pilha no log ap\u00f3s uma falha.\n<li class=\"l\"> Na ferramenta varnishadm, foi adicionada a vari\u00e1vel &#171;obj.last_hit&#187;, que pode ser usada para organizar a remo\u00e7\u00e3o de objetos do cache que n\u00e3o foram acessados h\u00e1 muito tempo.\n<li class=\"l\"> Novos contadores de estat\u00edsticas VCP.ref_hit, VCP.ref_miss, transit_stored e transit_buffered foram adicionados \u00e0 ferramenta varnishstat.         <\/ul>\n<p>Fonte: <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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