{"id":119910,"date":"2024-09-22T15:43:01","date_gmt":"2024-09-22T13:43:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-criu-4-0-sistemy-dlya-sohraneniya-i-vosstanovleniya-sostoyaniya-proczessov-v-linux"},"modified":"2024-09-22T15:43:01","modified_gmt":"2024-09-22T13:43:01","slug":"vypusk-criu-4-0-sistemy-dlya-sohraneniya-i-vosstanovleniya-sostoyaniya-proczessov-v-linux","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/vypusk-criu-4-0-sistemy-dlya-sohraneniya-i-vosstanovleniya-sostoyaniya-proczessov-v-linux","title":{"rendered":"Wydanie CRIU 4.0, systemu do zapisywania i przywracania stanu proces\u00f3w w Linux","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Opublikowano wersj\u0119 narz\u0119dzia CRIU 4.0 (Checkpoint and Restore In Userspace), kt\u00f3re s\u0142u\u017cy do zapisywania i przywracania proces\u00f3w w przestrzeni u\u017cytkownika. Narz\u0119dzie umo\u017cliwia zapisanie stanu jednego lub grupy proces\u00f3w, a nast\u0119pnie wznowienie pracy z zapisanego miejsca, nawet po ponownym uruchomieniu systemu lub na innym serwerze bez przerywania ju\u017c nawi\u0105zanych po\u0142\u0105cze\u0144 sieciowych. Kod projektu napisany jest w j\u0119zyku C i jest dystrybuowany na licencji GPLv2. CRIU jest stosowane w takich systemach zarz\u0105dzania kontenerami, jak OpenVZ, LXC\/LXD i Docker. Niekt\u00f3re zmiany wymagane do dzia\u0142ania CRIU s\u0105 w\u0142\u0105czone w g\u0142\u00f3wn\u0105 wersj\u0119 j\u0105dra Linux.      <\/p>\n<p>W obszarach zastosowania technologii CRIU wymienia si\u0119 zapewnienie ponownego uruchomienia systemu operacyjnego bez naruszania ci\u0105g\u0142o\u015bci wykonywania d\u0142ugoterminowych proces\u00f3w, migracj\u0119 na \u017cywo izolowanych kontener\u00f3w, przyspieszenie uruchamiania wolno dzia\u0142aj\u0105cych proces\u00f3w (mo\u017cna rozpocz\u0105\u0107 prac\u0119 od stanu zapisanego po inicjalizacji), przeprowadzanie aktualizacji j\u0105dra bez ponownego uruchamiania us\u0142ug, okresowe zapisywanie stanu d\u0142ugoterminowych zada\u0144 obliczeniowych w celu wznowienia pracy w przypadku awarii, r\u00f3wnowa\u017cenie obci\u0105\u017cenia w w\u0119z\u0142ach w klastrach, duplikowanie proces\u00f3w na inny komputer (fork na zdalny system), tworzenie migawek aplikacji u\u017cytkowych w trakcie pracy do ich analizy na innym systemie lub na wypadek, gdyby zasz\u0142a potrzeba anulowania dalszych dzia\u0142a\u0144 w programie.     <\/p>\n<p>W nowym wydaniu:  <\/p>\n<ul>\n<li class=\"l\"> Dodano wtyczk\u0119 CUDA, kt\u00f3ra zapewnia mo\u017cliwo\u015b\u0107 zapisywania i przywracania stanu aplikacji opartych na technologii NVIDIA CUDA.\n<li class=\"l\"> Dodano wsparcie dla mechanizmu Shadow Stack, obs\u0142ugiwanego od j\u0105dra Linux 6.6, kt\u00f3re pozwala blokowa\u0107 dzia\u0142anie wielu exploit\u00f3w, korzystaj\u0105c z mo\u017cliwo\u015bci sprz\u0119towych procesor\u00f3w Intel (po przekazaniu kontroli do funkcji adresy powrotu s\u0105 zapisywane przez procesor nie tylko w zwyk\u0142ym stosie, ale tak\u017ce w oddzielnym \u201ecieniowym\u201d stosie, kt\u00f3ry nie mo\u017ce by\u0107 bezpo\u015brednio zmieniany, a przed wyj\u015bciem z funkcji adres powrotu jest pobierany z cieniowego stosu i por\u00f3wnywany z adresem powrotu ze zwyk\u0142ego stosu).\n<li class=\"l\"> Dodano wsparcie dla polecenia ioctl PAGEMAP_SCAN, umo\u017cliwiaj\u0105cego uzyskiwanie informacji o zawarto\u015bci tabel stron pami\u0119ci, co mi\u0119dzy innymi w po\u0142\u0105czeniu z userfaultfd() pozwala na ustalanie fakt\u00f3w zapisu w okre\u015blonym obszarze pami\u0119ci.\n<li class=\"l\"> Wprowadzono mo\u017cliwo\u015b\u0107 przywracania w\u0105tku w poprawnej cgroup v1.<br \/>\n<br \/>\u0179r\u00f3d\u0142o: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=61910\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f CRIU 4.0 (Checkpoint and Restore In Userspace), \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0438 \u0432\u043e\u0441\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0432 \u0432 \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f. \u0418\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0441\u043e\u0445\u0440\u0430\u043d\u0438\u0442\u044c \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u043e\u0434\u043d\u043e\u0433\u043e \u0438\u043b\u0438 \u0433\u0440\u0443\u043f\u043f\u044b \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0432, \u0430 \u0437\u0430\u0442\u0435\u043c \u0432\u043e\u0437\u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c \u0440\u0430\u0431\u043e\u0442\u0443 \u0441 \u0441\u043e\u0445\u0440\u0430\u043d\u0451\u043d\u043d\u043e\u0439 \u043f\u043e\u0437\u0438\u0446\u0438\u0438, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u043f\u043e\u0441\u043b\u0435 \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0438\u043b\u0438 \u043d\u0430 \u0434\u0440\u0443\u0433\u043e\u043c \u0441\u0435\u0440\u0432\u0435\u0440\u0435 \u0431\u0435\u0437 \u0440\u0430\u0437\u0440\u044b\u0432\u0430 \u0443\u0436\u0435 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0441\u0435\u0442\u0435\u0432\u044b\u0445 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 [&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-119910","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f CRIU 4.0 (Checkpoint and Restore In Userspace), \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043b\u044f \u0441\u043e\u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0438 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