{"id":107333,"date":"2023-03-18T12:48:09","date_gmt":"2023-03-18T10:48:11","guid":{"rendered":"https:\/\/prohoster.info\/?p=107333"},"modified":"2023-03-20T11:22:13","modified_gmt":"2023-03-20T09:22:13","slug":"inicziativa-po-pererabotke-instrumentariya-dlya-gipervizora-xen-na-yazyke-rust","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/inicziativa-po-pererabotke-instrumentariya-dlya-gipervizora-xen-na-yazyke-rust","title":{"rendered":"Iniciativa para revisar as ferramentas do hipervisor Xen em Rust","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Os desenvolvedores da plataforma XCP-ng, que est\u00e1 sendo desenvolvida sob o projeto Xen, publicaram um plano para criar em Rust uma substitui\u00e7\u00e3o para v\u00e1rios componentes da pilha de software do Xen. A reformula\u00e7\u00e3o do hipervisor Xen n\u00e3o est\u00e1 nos planos, e o foco est\u00e1 principalmente na reescrita de componentes individuais das ferramentas. <\/p>\n

Atualmente, a plataforma utiliza componentes escritos em C, Python, OCaml e Go, alguns dos quais est\u00e3o desatualizados e criam problemas de manuten\u00e7\u00e3o. Observa-se que a aplica\u00e7\u00e3o de Rust n\u00e3o resultar\u00e1 em um aumento geral no n\u00famero de linguagens utilizadas, j\u00e1 que apenas um componente implementado em Go est\u00e1 planejado para ser substitu\u00eddo primeiro. <\/p>\n

A linguagem Rust foi escolhida por combinar alta performance do c\u00f3digo resultante com recursos para gerenciamento seguro de mem\u00f3ria, sem necessidade de coletor de lixo, sendo adequada para o desenvolvimento de componentes de baixo e alto n\u00edvel, al\u00e9m de oferecer capacidades adicionais para reduzir erros potenciais, como a verifica\u00e7\u00e3o de empr\u00e9stimos de vari\u00e1veis (borrow checker). Rust tamb\u00e9m \u00e9 mais difundido do que o OCaml, atualmente usado no XAPI, o que facilitar\u00e1 a atra\u00e7\u00e3o de novos desenvolvedores para o projeto. <\/p>\n

Na primeira fase, est\u00e1 previsto desenvolver substitui\u00e7\u00f5es para v\u00e1rios componentes, a fim de testar processos e preparar a base para a troca de outras partes da pilha de software. Em particular, as ferramentas de Linux guest tools, atualmente escritas em Go, ser\u00e3o reescritas em Rust, assim como o processo em segundo plano para coleta de m\u00e9tricas, que \u00e9 escrito em OCaml. <\/p>\n

A necessidade de reformular as Linux guest tools (xe-guest-utilities) foi motivada por problemas de qualidade de c\u00f3digo e pelo desenvolvimento fora do projeto Xen Project sob a supervis\u00e3o do Cloud Software Group, o que dificulta a forma\u00e7\u00e3o de pacotes e a influ\u00eancia da comunidade no desenvolvimento. Uma nova vers\u00e3o das ferramentas (xen-guest-agent) ser\u00e1 criada completamente do zero, com o objetivo de torn\u00e1-la o mais simples poss\u00edvel, separando a l\u00f3gica do agente das bibliotecas. O processo em segundo plano para coleta de m\u00e9tricas (rrdd) ser\u00e1 reformulado, uma vez que \u00e9 compacto e isolado, facilitando a realiza\u00e7\u00e3o de experimentos com a nova linguagem durante o desenvolvimento. <\/p>\n

No pr\u00f3ximo ano, pode come\u00e7ar o trabalho no desenvolvimento do componente xenopsd-ng em Rust, que permitir\u00e1 otimizar a arquitetura da pilha de software. A principal ideia \u00e9 concentrar em um \u00fanico componente o trabalho com a API de baixo n\u00edvel e organizar a disponibiliza\u00e7\u00e3o de todas as APIs de alto n\u00edvel para os outros componentes da pilha. <\/p>\n

Arquitetura atual da pilha Xen:

\"Iniciativa<\/center> <\/p>\n

Arquitetura proposta da pilha Xen baseada no xenopsd-ng:

\"Iniciativa<\/center>
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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substitui\u00e7\u00f5es para v\u00e1rios componentes da pilha de software Xen.","canonical_url":"https:\/\/prohoster.info\/pt\/blog\/news\/inicziativa-po-pererabotke-instrumentariya-dlya-gipervizora-xen-na-yazyke-rust","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pt_PT","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0418\u043d\u0438\u0446\u0438\u0430\u0442\u0438\u0432\u0430 \u043f\u043e \u043f\u0435\u0440\u0435\u0440\u0430\u0431\u043e\u0442\u043a\u0435 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f \u0434\u043b\u044f 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