{"id":108902,"date":"2023-06-09T21:10:23","date_gmt":"2023-06-09T19:10:23","guid":{"rendered":"https:\/\/prohoster.info\/?p=108902"},"modified":"2023-06-13T09:45:19","modified_gmt":"2023-06-13T07:45:19","slug":"kompaniya-cisco-predlozhila-fajlovuyu-sistemu-puzzlefs-dlya-yadra-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/kompaniya-cisco-predlozhila-fajlovuyu-sistemu-puzzlefs-dlya-yadra-linux","title":{"rendered":"Compania Cisco a propus sistemul de fi\u0219iere PuzzleFS pentru nucleul Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Compania Cisco a lansat un nou sistem de fi\u0219iere, PuzzleFS, implementat ca un modul pentru nucleul Linux, scris \u00een limbajul Rust. FS este proiectat pentru a fi utilizat \u00een plasarea containerelor izolate \u0219i continu\u0103 dezvoltarea conceptelor propuse \u00een FS Atomfs. Implementarea se afl\u0103 \u00een prezent \u00een stadiul de prototip, sus\u021bine construc\u021bia cu ramura kernelului Linux rust-next \u0219i este deschis\u0103 sub licen\u021bele Apache 2.0 \u0219i MIT. <\/p>\n

Proiectul are ca obiectiv ocolirea limit\u0103rilor care apar la utilizarea imaginilor containerelor \u00een format OCI (Open Container Initiative). PuzzleFS abordeaz\u0103 probleme precum stocarea eficient\u0103 a datelor duplicat, posibilitatea de montare direct\u0103, reconstruirea repetat\u0103 a imaginilor \u0219i operarea sigur\u0103 cu memoria. <\/p>\n

Pentru deduplicarea datelor repetate \u00een diferite containe, este utilizat algoritmul FastCDC (Fast Content-Defined Chunking), care func\u021bioneaz\u0103 prin \u00eemp\u0103r\u021birea datelor \u00een fragmente de dimensiuni variabile \u0219i men\u021binerea unui index cu hash-uri ale fragmentelor procesate. Fragmentele repetate sunt stocate o singur\u0103 dat\u0103 \u0219i indexate \u00een comun pentru toate straturile FS, astfel \u00eenc\u00e2t deduplicarea poate acoperi diferite puncte de montare (un nou strat FS poate fi pornit pe baza unuia existent \u0219i poate folosi fragmentele de date disponibile \u00een acesta la deduplicare). <\/p>\n

Reconstruc\u021bia repetat\u0103 a imaginilor containerelor este realizat\u0103 prin definirea unei reprezent\u0103ri canonice a formatului imaginilor containerelor. Montarea direct\u0103 (direct-mount) permite montarea unei imagini de container \u00een format OCI dintr-un depozit global partajat f\u0103r\u0103 a fi nevoie de despachetare prealabil\u0103, utiliz\u00e2nd ca identificator hash-ul con\u021binutului din manifestul containerului. Pentru verificarea integrit\u0103\u021bii datelor \u00een condi\u021bii de utilizare a unui depozit comun, poate fi utilizat mecanismul fs-verity, care, la accesarea fi\u0219ierelor, verific\u0103 concordan\u021ba hash-urilor specificate \u00een indexul binar cu con\u021binutul real. <\/p>\n

Limbajul Rust a fost ales deoarece combin\u0103 performan\u021ba ridicat\u0103 a codului rezultat cu capacit\u0103\u021bile de gestionare sigur\u0103 a memoriei, ceea ce reduce riscul apari\u021biei vulnerabilit\u0103\u021bilor cauzate de probleme precum accesul la zona de memorie dup\u0103 eliberare \u0219i dep\u0103\u0219irea limitelor buffer-ului. Utilizarea Rust pentru modulul kernel a permis, de asemenea, partajarea codului \u00eentre kernel \u0219i componentele care func\u021bioneaz\u0103 \u00een spa\u021biul utilizatorului, pentru a crea o implementare sigur\u0103 unificat\u0103. <\/p>\n

Printre alte obiective ale proiectului se num\u0103r\u0103: compilarea \u0219i montarea rapid\u0103 a imaginilor, posibilitatea utiliz\u0103rii unei etape intermediare op\u021bionale pentru transformarea (canonicalization) imaginilor, op\u021bionalitatea trecerilor complete prin arborele sistemului de fi\u0219iere \u00een stil mtree atunci c\u00e2nd se folose\u0219te o structur\u0103 multilayer, aplicarea modific\u0103rilor \u00een stil casync \u0219i o arhitectur\u0103 simpl\u0103 de implementat.
\n
Sursa: opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cisco \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b\u0430 \u043d\u043e\u0432\u0443\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 PuzzleFS, \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u0443\u044e \u0432 \u0432\u0438\u0434\u0435 \u043c\u043e\u0434\u0443\u043b\u044f \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Linux, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust. \u0424\u0421 \u0440\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u043d\u0430 \u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0434\u043b\u044f \u0440\u0430\u0437\u043c\u0435\u0449\u0435\u043d\u0438\u044f \u0438\u0437\u043e\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 \u0438 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0438\u0434\u0435\u0439, \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0445 \u0432 \u0424\u0421 Atomfs. \u0420\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043f\u043e\u043a\u0430 \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u043d\u0430 \u0441\u0442\u0430\u0434\u0438\u0438 \u043f\u0440\u043e\u0442\u043e\u0442\u0438\u043f\u0430, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0441\u0431\u043e\u0440\u043a\u0443 \u0441 \u0432\u0435\u0442\u043a\u043e\u0439 \u044f\u0434\u0440\u0430 Linux rust-next \u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u0430 \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u044f\u043c\u0438 Apache 2.0 \u0438 MIT. […]<\/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-108902","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Compania Cisco a propus sistemul de fi\u0219iere PuzzleFS pentru kernelul Linux | ProHoster","description":"Compania Cisco a propus un nou sistem de fi\u0219iere PuzzleFS, implementat sub forma unui modul pentru kernelul Linux, scris \u00een limbajul Rust.","canonical_url":"https:\/\/prohoster.info\/ro\/blog\/news\/kompaniya-cisco-predlozhila-fajlovuyu-sistemu-puzzlefs-dlya-yadra-linux","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"ro_RO","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\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cisco \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b\u0430 \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 PuzzleFS \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Linux | ProHoster","og:description":"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cisco \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0438\u043b\u0430 \u043d\u043e\u0432\u0443\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 PuzzleFS, \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u0443\u044e \u0432 \u0432\u0438\u0434\u0435 \u043c\u043e\u0434\u0443\u043b\u044f \u0434\u043b\u044f \u044f\u0434\u0440\u0430 Linux, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0433\u043e \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Rust.","og:url":"https:\/\/prohoster.info\/ro\/blog\/news\/kompaniya-cisco-predlozhila-fajlovuyu-sistemu-puzzlefs-dlya-yadra-linux","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2023-06-09T19:10:23+00:00","article:modified_time":"2023-06-13T07:45:19+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/posts\/108902","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/comments?post=108902"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/posts\/108902\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/media?parent=108902"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/categories?post=108902"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/ro\/wp-json\/wp\/v2\/tags?post=108902"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}