{"id":36837,"date":"2019-10-31T22:14:07","date_gmt":"2019-10-31T19:14:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/razmer-direktorij-ne-stoit-nashih-usilij\/"},"modified":"2019-10-31T22:14:07","modified_gmt":"2019-10-31T19:14:07","slug":"razmer-direktorij-ne-stoit-nashih-usilij","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/razmer-direktorij-ne-stoit-nashih-usilij","title":{"rendered":"Ve\u013ekos\u0165 adres\u00e1rov nestoj\u00ed na\u0161e \u00fasilie","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Toto je \u00faplne zbyto\u010dn\u00fd, prakticky nepou\u017eite\u013en\u00fd, ale z\u00e1bavn\u00fd mal\u00fd pr\u00edspevok o adres\u00e1roch v syst\u00e9moch *nix. Predsa len je piatok.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nNa pohovoroch sa \u010dasto objavuj\u00fa nudn\u00e9 ot\u00e1zky o in\u00f3doch, v\u0161etko-jeden-s\u00fabor, na ktor\u00e9 m\u00e1lokto m\u00f4\u017ee rozumne odpoveda\u0165. Ale ak sa ponor\u00edme trochu hlb\u0161ie, m\u00f4\u017eeme n\u00e1js\u0165 zauj\u00edmav\u00e9 veci. <\/p>\n<p>Na pochopenie pr\u00edspevku trochu tez\u00ed:<\/p>\n<ul>\n<li>v\u0161etko je s\u00fabor. adres\u00e1r je tie\u017e s\u00fabor <\/li>\n<li>v in\u00f3de sa uchov\u00e1vaj\u00fa meta-d\u00e1ta s\u00faboru, ale n\u00e1zov s\u00faboru tam nie je ulo\u017een\u00fd <\/li>\n<li>n\u00e1zov s\u00faboru je ulo\u017een\u00fd v \u00fadajoch adres\u00e1ra <\/li>\n<li>ve\u013ekos\u0165 adres\u00e1ra, t\u00e1, ktor\u00e1 sa zobrazuje v ls a predvolene je 4KB, z\u00e1vis\u00ed od po\u010dtu s\u00faborov v adres\u00e1ri a d\u013a\u017eky ich n\u00e1zvov <\/li>\n<li>je zrejm\u00e9, \u017ee \u010d\u00edm viac s\u00faborov, t\u00fdm v\u00e4\u010d\u0161ia ve\u013ekos\u0165 adres\u00e1ra<\/li>\n<\/ul>\n<p>\nA teraz nie\u010do zauj\u00edmav\u00e9: vytvor\u00edme adres\u00e1r s milionom s\u00faborov, skontrolujeme ve\u013ekos\u0165 adres\u00e1ra a potom vyma\u017eeme v\u0161etky s\u00fabory a pozrieme sa na ve\u013ekos\u0165 adres\u00e1ra.<\/p>\n<pre><code class=\"bash\">$ mkdir niceDir &amp;&amp; cd niceDir\n# v z\u00e1vislosti od r\u00fdchlosti \u00falo\u017eiska, nasleduj\u00faci pr\u00edkaz m\u00f4\u017ee trva\u0165 2-10 min\u00fat\n$ for ((i=1;i&lt;133700;i++)); do touch long_long_looong_man_sakeru_$i ; done\n$ ls -lhd .\ndrwxr-xr-x 2 user user 8.1M 2. aug 13:37 .\n$ find . -type f -delete\n$ ls -l\ntotal 0\n$ ls -lhd .\ndrwxr-xr-x 2 user user 8.1M 2. aug  13:37 .<\/code><\/pre>\n<p>\nAko si m\u00f4\u017eete v\u0161imn\u00fa\u0165, ve\u013ekos\u0165 adres\u00e1ra sa nezmenila, hoci by sa to mohlo zda\u0165 \ud83d\ude42<\/p>\n<p>Opravi\u0165 ve\u013ekos\u0165 adres\u00e1ra (bez odstr\u00e1nenia) je mo\u017en\u00e9 iba pomocou fsck (a vo\u013eby -D) v odmontovanom stave.<\/p>\n<p>A ke\u010f som sa i\u0161iel h\u013eada\u0165, pre\u010do je to tak, zistil som, \u017ee pred 10 rokmi tak\u00e9to spr\u00e1vanie u\u017e <noindex><a rel=\"nofollow\" href=\"https:\/\/lkml.org\/lkml\/2009\/5\/15\/146\">diskutovali<\/a><\/noindex> v lkml. A pod\u013ea n\u00e1zoru v\u00fdvoj\u00e1rov oprava jednoducho nestoj\u00ed za vynalo\u017een\u00e9 \u00fasilie.<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/462295\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u042d\u0442\u043e \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u043d\u043e \u0431\u0435\u0441\u043f\u043e\u043b\u0435\u0437\u043d\u044b\u0439, \u043d\u0435\u043d\u0443\u0436\u043d\u044b\u0439 \u0432 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u043c \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0438, \u043d\u043e \u0437\u0430\u0431\u0430\u0432\u043d\u044b\u0439 \u043d\u0435\u0431\u043e\u043b\u044c\u0448\u043e\u0439 \u043f\u043e\u0441\u0442 \u043f\u0440\u043e \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0438\u0438 \u0432 *nix \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445. \u041f\u044f\u0442\u043d\u0438\u0446\u0430 \u0436\u0435. \u041d\u0430 \u0441\u043e\u0431\u0435\u0441\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u044f\u0445 \u0447\u0430\u0441\u0442\u043e \u043f\u0440\u043e\u0441\u043a\u0430\u043a\u0438\u0432\u0430\u044e\u0442 \u0441\u043a\u0443\u0447\u043d\u044b\u0435 \u0432\u043e\u043f\u0440\u043e\u0441\u044b \u043f\u0440\u043e \u0430\u0439\u043d\u043e\u0434\u044b, \u0432\u0441\u0451-\u0435\u0441\u0442\u044c-\u0444\u0430\u0439\u043b\u044b, \u043d\u0430 \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043c\u0430\u043b\u043e \u043a\u0442\u043e \u043c\u043e\u0436\u0435\u0442 \u0432\u043c\u0435\u043d\u044f\u0435\u043c\u043e \u043e\u0442\u0432\u0435\u0442\u0438\u0442\u044c. \u041d\u043e \u0435\u0441\u043b\u0438 \u043a\u043e\u043f\u043d\u0443\u0442\u044c \u0447\u0443\u0442\u044c \u0433\u043b\u0443\u0431\u0436\u0435, \u043c\u043e\u0436\u043d\u043e \u043d\u0430\u0439\u0442\u0438 \u043b\u044e\u0431\u043e\u043f\u044b\u0442\u043d\u044b\u0435 \u0432\u0435\u0449\u0438. \u0414\u043b\u044f \u043f\u043e\u043d\u0438\u043c\u0430\u043d\u0438\u044f \u043f\u043e\u0441\u0442\u0430 \u043d\u0435\u043c\u043d\u043e\u0433\u043e \u0442\u0435\u0437\u0438\u0441\u043e\u0432: \u0432\u0441\u0451 \u0435\u0441\u0442\u044c \u0444\u0430\u0439\u043b. \u0434\u0438\u0440\u0435\u043a\u0442\u043e\u0440\u0438\u044f \u2014 \u044d\u0442\u043e \u0442\u043e\u0436\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":[688],"tags":[],"class_list":["post-36837","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u042d\u0442\u043e \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u043d\u043e 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