{"id":108436,"date":"2023-05-09T12:48:13","date_gmt":"2023-05-09T10:48:13","guid":{"rendered":"https:\/\/prohoster.info\/?p=108436"},"modified":"2023-05-10T08:54:57","modified_gmt":"2023-05-10T06:54:57","slug":"lennart-pottering-predlozhil-dobavit-v-systemd-rezhim-myagkoj-perezagruzki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/lennart-pottering-predlozhil-dobavit-v-systemd-rezhim-myagkoj-perezagruzki","title":{"rendered":"Lennart Poettering navrhl p\u0159idat do systemd re\u017eim m\u011bkk\u00e9ho restartu.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Lennart Pottering hovo\u0159il o p\u0159\u00edprav\u00e1ch na p\u0159id\u00e1n\u00ed re\u017eimu m\u011bkk\u00e9ho restartu do syst\u00e9mov\u00e9ho spr\u00e1vce systemd (\"systemctl soft-reboot\"), kter\u00fd restartuje pouze komponenty u\u017eivatelsk\u00e9ho prostoru, ani\u017e by se dot\u00fdkal j\u00e1dra Linuxu. P\u0159edpokl\u00e1d\u00e1 se, \u017ee ve srovn\u00e1n\u00ed s b\u011b\u017en\u00fdm restartem by m\u011bkk\u00fd restart m\u011bl zkr\u00e1tit dobu prostoj\u016f b\u011bhem aktualizace prost\u0159ed\u00ed, kter\u00e1 pou\u017e\u00edvaj\u00ed hotov\u00e9 syst\u00e9mov\u00e9 obrazy. <\/p>\n

Nov\u00fd re\u017eim umo\u017en\u00ed ukon\u010dit v\u0161echny procesy v u\u017eivatelsk\u00e9m prostoru, po \u010dem\u017e se nahrad\u00ed obraz ko\u0159enov\u00e9ho souborov\u00e9ho syst\u00e9mu za novou verzi a spust\u00ed se proces inicializace syst\u00e9mu, ani\u017e by se restartovalo j\u00e1dro. Nav\u00edc zachov\u00e1n\u00ed stavu b\u011b\u017e\u00edc\u00edho j\u00e1dra p\u0159i nahrazov\u00e1n\u00ed u\u017eivatelsk\u00e9ho prost\u0159ed\u00ed umo\u017en\u00ed realizaci aktualizac\u00ed n\u011bkter\u00fdch slu\u017eeb v \u017eiv\u00e9m re\u017eimu, organizov\u00e1n\u00edm p\u0159enosu souborov\u00fdch popisova\u010d\u016f a naslouchaj\u00edc\u00edch s\u00ed\u0165ov\u00fdch socket\u016f pro tyto slu\u017eby ze star\u00e9ho prost\u0159ed\u00ed do nov\u00e9ho. T\u00edmto zp\u016fsobem bude mo\u017en\u00e9 v\u00fdznamn\u011b zkr\u00e1tit \u010das pot\u0159ebn\u00fd na v\u00fdm\u011bnu jedn\u00e9 verze syst\u00e9mu za druhou a zajistit hladk\u00fd p\u0159enos prost\u0159edk\u016f pro nejd\u016fle\u017eit\u011bj\u0161\u00ed slu\u017eby, kter\u00e9 budou pokra\u010dovat v pr\u00e1ci bez p\u0159eru\u0161en\u00ed. <\/p>\n

Zrychlen\u00ed restartu je dosa\u017eeno vylou\u010den\u00edm relativn\u011b dlouh\u00fdch f\u00e1z\u00ed, jako je inicializace hardwaru, pr\u00e1ce zav\u00e1d\u011b\u010de, spu\u0161t\u011bn\u00ed j\u00e1dra, inicializace ovlada\u010d\u016f, na\u010d\u00edt\u00e1n\u00ed firmwaru a zpracov\u00e1n\u00ed initrd. Pro aktualizaci j\u00e1dra v kombinaci s m\u011bkk\u00fdm restartem se navrhuje pou\u017e\u00edt mechanismus livepatch k prov\u00e1d\u011bn\u00ed oprav v b\u011b\u017e\u00edc\u00edm j\u00e1dru Linuxu bez \u00fapln\u00e9ho restartu a bez p\u0159eru\u0161en\u00ed pr\u00e1ce aplikac\u00ed.
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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