{"id":160996,"date":"2026-02-14T11:12:34","date_gmt":"2026-02-14T09:12:34","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/dlya-yadra-linux-predlozhena-fajlovaya-sistema-dlmpfs"},"modified":"2026-02-14T11:12:34","modified_gmt":"2026-02-14T09:12:34","slug":"dlya-yadra-linux-predlozhena-fajlovaya-sistema-dlmpfs","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/dlya-yadra-linux-predlozhena-fajlovaya-sistema-dlmpfs","title":{"rendered":"A Linux kernel sz\u00e1m\u00e1ra javasolt DLMPFS f\u00e1jlrendszer","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Alexander Aring a Red Hat-t\u00f3l, aki az IEEE 802.15.4, DLM \u00e9s flock\/fcntl alrendszereit t\u00e1mogatja a Linux kernelben, bemutatta a DLMPFS nev\u0171 specializ\u00e1lt f\u00e1jlrendszert a kernel fejleszt\u0151k list\u00e1j\u00e1n. A javasolt f\u00e1jlrendszer egy r\u00e9teget biztos\u00edt a sz\u00e9tsz\u00f3rt f\u00e1jlz\u00e1rak sz\u00e1m\u00e1ra, amely a DLM (Distributed Lock Manager) \u00e9s a ramfs alapjaira \u00e9p\u00fcl. A DLMPFS megval\u00f3s\u00edt\u00e1sa patch form\u00e1j\u00e1ban \u00e9rhet\u0151 el a Linux 6.19 kernelhez.      <\/p>\n<p>A DLMPFS lehet\u0151v\u00e9 teszi, hogy t\u00f6bb gazdag\u00e9p k\u00f6z\u00f6sen haszn\u00e1lja a f\u00e1jlok hierarchi\u00e1j\u00e1t, f\u00e1jlokat \u00e9s mapp\u00e1kat hozzon l\u00e9tre \u00e9s t\u00f6r\u00f6lj\u00f6n, valamint f\u00e1jlz\u00e1rakat \u00e1ll\u00edtson be vagy oldjon fel a flock() \u00e9s fcntl() alap\u00e9rtelmezett funkci\u00f3inak seg\u00edts\u00e9g\u00e9vel. Ugyanakkor a DLMPFS nem teszi lehet\u0151v\u00e9 a f\u00e1jlokb\u00f3l val\u00f3 \u00edr\u00e1st \u00e9s olvas\u00e1st, csak a z\u00e1rak m\u0171veleteire korl\u00e1toz\u00f3dik. A korl\u00e1toz\u00e1s az is, hogy a z\u00e1rol\u00e1s \u00e1llapot\u00e1t csak akkor lehet meghat\u00e1rozni, ha ismerj\u00fck a z\u00e1rolt f\u00e1jl teljes f\u00e1jl\u00fatvonal\u00e1t (a DLM a z\u00e1rol\u00e1s meghat\u00e1roz\u00e1s\u00e1hoz a forr\u00e1s nev\u00e9t ig\u00e9nyli).      <\/p>\n<p>A DLMPFS seg\u00edts\u00e9g\u00e9vel k\u00f6nnyen adapt\u00e1lhat\u00f3 a megl\u00e9v\u0151, a z\u00e1rak be\u00e1ll\u00edt\u00e1s\u00e1ra a flock\/fcntl API-n kereszt\u00fcl t\u00e1maszkod\u00f3 alkalmaz\u00e1sok haszn\u00e1lata a sz\u00e9tsz\u00f3rt z\u00e1rak felhaszn\u00e1l\u00e1s\u00e1ra, amelyek t\u00f6bb gazdag\u00e9pet \u00f6lelnek fel a klaszterben, an\u00e9lk\u00fcl, hogy speci\u00e1lis sz\u00e9tsz\u00f3rt f\u00e1jlrendszerekre lenne sz\u00fcks\u00e9g az adatok t\u00e1rol\u00e1s\u00e1hoz.     <\/p>\n<p>A DLMPFS elt\u00e9r a hasonl\u00f3 DLMFS f\u00e1jlrendszert\u0151l, mivel a flock\/fcntl API-t haszn\u00e1lja az OCFS2 f\u00e1jlrendszerre jellemz\u0151 API helyett. Tervek k\u00f6z\u00f6tt szerepel a DLMPFS b\u0151v\u00edt\u00e9se a POSIX specifik\u00e1ci\u00f3ban megjel\u00f6lt sz\u00e9tsz\u00f3rt z\u00e1rakkal \u00e9s k\u00fcl\u00f6nb\u00f6z\u0151 h\u00e1tt\u00e9rszolg\u00e1ltat\u00f3k csatlakoztat\u00e1s\u00e1nak lehet\u0151s\u00e9g\u00e9vel, amely lehet\u0151v\u00e9 teszi nemcsak a DLM, hanem m\u00e1s sz\u00e9tsz\u00f3rt z\u00e1rkezel\u0151k, p\u00e9ld\u00e1ul az NFS lockd integr\u00e1l\u00e1s\u00e1t is.        <\/p>\n<p>P\u00e9lda a haszn\u00e1latra (a m\u00e1sodik csom\u00f3ponton a z\u00e1rol\u00e1s a f\u00e1jl \/mnt\/lock 20 m\u00e1sodperc m\u00falva felold\u00f3dik): Csom\u00f3pont 1: mount -t dlmpfs -o clname=$CLUSTERNAME none \/mnt touch \/mnt\/lock flock \/mnt\/lock -c &#171;echo &#8216;acquired&#8217;; sleep 20; echo &#8216;released'&#187; Csom\u00f3pont 2: mount -t dlmpfs -o clname=$CLUSTERNAME none \/mnt touch \/mnt\/lock flock \/mnt\/lock -c &#171;echo &#8216;acquired&#8217;; sleep 20; echo &#8216;released'&#187;<br \/>\n<br \/>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64796\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0410\u043b\u0435\u043a\u0441\u0430\u043d\u0434\u0440 \u0410\u0440\u0438\u043d\u0433 (Alexander Aring) \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Red Hat, \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u0439 \u0432 \u044f\u0434\u0440\u0435 Linux \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b IEEE 802.15.4, DLM \u0438 flock\/fcntl, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u0440\u0430\u0441\u0441\u044b\u043b\u043a\u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 \u044f\u0434\u0440\u0430 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u0443\u044e \u0444\u0430\u0439\u043b\u043e\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0443 DLMPFS. \u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u0430\u044f \u0424\u0421 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 \u0441\u043b\u043e\u0439 \u0434\u043b\u044f \u0440\u0430\u0441\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u0445 \u0431\u043b\u043e\u043a\u0438\u0440\u043e\u0432\u043e\u043a, \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u043d\u0430 \u0431\u0430\u0437\u0435 DLM (Distributed Lock Manager) \u0438 ramfs. \u0420\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f DLMPFS \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u0430 \u0432 \u0444\u043e\u0440\u043c\u0435 \u043d\u0430\u0431\u043e\u0440\u0430 \u043f\u0430\u0442\u0447\u0435\u0439 \u043a \u044f\u0434\u0440\u0443 Linux [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-160996","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0410\u043b\u0435\u043a\u0441\u0430\u043d\u0434\u0440 \u0410\u0440\u0438\u043d\u0433 (Alexander Aring) \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Red Hat, \u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u044e\u0449\u0438\u0439 \u0432 \u044f\u0434\u0440\u0435 Linux \u043f\u043e\u0434\u0441\u0438\u0441\u0442\u0435\u043c\u044b IEEE 802.15.4, DLM \u0438 flock\/fcntl, 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