{"id":424,"date":"2021-03-03T17:02:15","date_gmt":"2021-03-03T17:02:15","guid":{"rendered":"https:\/\/dev.sourcecode.sk\/wsczkb\/?post_type=ht_kb&#038;p=424"},"modified":"2021-07-19T15:47:10","modified_gmt":"2021-07-19T13:47:10","slug":"vysoka-i-o-zatez","status":"publish","type":"ht_kb","link":"https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/","title":{"rendered":"Vysok\u00e1 I\/O z\u00e1t\u011b\u017e"},"content":{"rendered":"\n<p style=\"font-size:18px\">Zv\u00fd\u0161en\u00e1 I\/O (Input\/Output) z\u00e1t\u011b\u017e p\u0159edstavuje zv\u00fd\u0161en\u00fd po\u010det p\u0159\u00edstup\u016f k Va\u0161im dat\u016fm. Statistiky I\/O z\u00e1t\u011b\u017e\u00ed reprezentuj\u00ed v\u0161echny v\u00fdm\u011bny d\u00e1t mezi webovou aplikac\u00ed b\u011b\u017e\u00edc\u00ed na webov\u00e9m Apache serveru a diskov\u00fdm polem a RAM pam\u011bt\u00ed.<\/p>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>D\u016fvody<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Cel\u00e1 str\u00e1nka, nebo jen jedna jej\u00ed \u010d\u00e1st, za\u017e\u00edv\u00e1 velmi vysokou n\u00e1v\u0161t\u011bvnost. Pod\u00edvejte se na n\u00e1v\u0161t\u011bvnost cel\u00e9 str\u00e1nky, jestli u n\u011bkter\u00e9 podstr\u00e1nky nejsou podez\u0159el\u00e1 \u010d\u00edsla. Doporu\u010den\u00fd n\u00e1stroj na sledov\u00e1n\u00ed statistiky n\u00e1v\u0161t\u011bvnosti je nap\u0159\u00edklad Google Analytics.<\/li><li>Str\u00e1nka m\u016f\u017ee b\u00fdt hacknut\u00e1. Pod\u00edvejte se, jestli na n\u00ed nep\u0159ibyly ne\u017e\u00e1douc\u00ed soubory, jako nap\u0159\u00edklad koment\u00e1\u0159e v diskus\u00edch. Zkontrolujte si nastaven\u00ed v .htaccess souboru, mohly se tam objevit nap\u0159\u00edklad ne\u017e\u00e1douc\u00ed p\u0159esm\u011brov\u00e1n\u00ed. Ve statistik\u00e1ch o n\u00e1v\u0161t\u011bvnosti se pod\u00edvejte, z kter\u00fdch zem\u00ed p\u0159ich\u00e1zej\u00ed po\u017eadavky. Pokud p\u0159ich\u00e1zej\u00ed ze zahrani\u010d\u00ed, z exotick\u00fdch zem\u00ed a podobn\u011b, je to v\u00e1\u017en\u00e1 indikace, \u017ee str\u00e1nka je hacknut\u00e1. Porovnejte si str\u00e1nku se star\u0161\u00edmi z\u00e1lohami. Pro jistotu si zm\u011b\u0148te p\u0159\u00edstupov\u00e1 hesla ke str\u00e1nce.<\/li><li>Pokud je v\u0161echna n\u00e1v\u0161t\u011bvnost na Va\u0161i str\u00e1nku legitimn\u00ed a stejn\u011b za\u017e\u00edv\u00e1 zv\u00fd\u0161enou I\/O z\u00e1t\u011b\u017e, m\u016f\u017ee b\u00fdt PHP aplikace nevhodn\u011b napsan\u00e1. Zkontrolujte jej\u00ed zdrojov\u00fd k\u00f3d, p\u0159\u00edpadn\u011b jestli v n\u011bm nen\u00ed prostor pro optimalizaci.<\/li><li>M\u016f\u017eete po\u017e\u00e1dat na\u0161i technickou podporu o placenou anal\u00fdzu v\u00fdkonu str\u00e1nky. Na\u0161i zku\u0161en\u00ed administr\u00e1to\u0159i V\u00e1m porad\u00ed, kde je p\u0159\u00edpadn\u00fd prostor na optimalizaci jej\u00edho v\u00fdkonu a spot\u0159eby zdroj\u016f.<\/li><li>\u010cast\u00fdm d\u016fvodem I\/O z\u00e1t\u011b\u017ee je vykon\u00e1v\u00e1n\u00ed z\u00e1lohov\u00e1n\u00ed ve vlastn\u00ed re\u017eii. Hlavn\u011b CMS syst\u00e9my v defaultn\u00edm nastaven\u00ed jsou zvykl\u00e9 vykon\u00e1vat z\u00e1lohov\u00e1n\u00ed cel\u00e9ho hostingu a to v\u010detn\u011b u\u017e d\u0159\u00edve vytvo\u0159en\u00fdch z\u00e1loh. Velikost takov\u00e9 z\u00e1lohy (web + star\u00e9 z\u00e1lohy) roste exponenci\u00e1ln\u011b s ka\u017edou iterac\u00ed a na hostingu m\u016f\u017ee doj\u00edt k n\u00e1razu na kv\u00f3tu diskov\u00e9ho prostoru nebo pr\u00e1v\u011b k vysok\u00e9 I\/O z\u00e1t\u011b\u017ei. Doporu\u010dujeme prov\u011b\u0159it nastaven\u00ed z\u00e1lohov\u00e1n\u00ed a vynechat ze z\u00e1lohov\u00e1n\u00ed adres\u00e1\u0159, kam se ukl\u00e1daj\u00ed v\u00fdsledn\u00e9 z\u00e1lohy. P\u0159\u00edpadn\u011b se m\u016f\u017eete spolehnout na na\u0161e z\u00e1lohovac\u00ed \u0159e\u0161en\u00ed a ty svoje v\u016fbec ne\u0159e\u0161it.<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Jak sn\u00ed\u017eit I\/O z\u00e1t\u011b\u017e<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\"><li>Zapn\u011bte si dostupn\u00e9 formy cachov\u00e1n\u00ed obsahu Va\u0161\u00ed str\u00e1nky, pro v\u00edce informac\u00ed se pod\u00edvejte na <a href=\"https:\/\/www.websupport.cz\/podpora\/kb\/vyrovnavaci-pamet-na-hostingu\/\">n\u00e1\u0161 n\u00e1vod<\/a>. Pro sn\u00ed\u017een\u00ed I\/O je ide\u00e1ln\u00ed nastavit cacheov\u00e1n\u00ed str\u00e1nky do memcache\u00a0<\/li><li>Zva\u017ete upgrade PHP verze na nejvy\u0161\u0161\u00ed aktu\u00e1ln\u00ed verzi a tak\u00e9 p\u0159esun na datab\u00e1zov\u00fd server nejnov\u011bj\u0161\u00ed verze. Pokud pou\u017e\u00edv\u00e1te standardizovan\u00fd redak\u010dn\u00ed syst\u00e9m jako WordPress, Joomla, alebo Drupal, takt\u00e9\u017e doporu\u010dujeme p\u0159ej\u00edt na nejvy\u0161\u0161\u00ed dostupnou verzi. M\u016f\u017ee b\u00fdt rychlej\u0161\u00ed a hlavn\u011b z n\u00ed budou odstran\u011bn\u00e9 p\u0159\u00edpadn\u00e9 bezpe\u010dnostn\u00ed d\u00edry.<\/li><\/ul>\n\n\n\n<p>Pokud i po revidovan\u00ed n\u00e1v\u0161t\u011bvnosti a zdrojov\u00e9ho k\u00f3du webov\u00e9 aplikace str\u00e1nka za\u017e\u00edv\u00e1 vysokou I\/O z\u00e1t\u011b\u017e, m\u016f\u017ee b\u00fdt problematick\u00e9 ji provozovat na sd\u00edlen\u00e9 architektu\u0159e. M\u016f\u017ee toti\u017e ohro\u017eovat provoz jin\u00fdch web\u016f. Proto V\u00e1s m\u016f\u017eeme po\u017e\u00e1dat o p\u0159esun na vlastn\u00ed virtu\u00e1ln\u00ed VPS server, nebo dedikovan\u00fd fyzick\u00fd server.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Zv\u00fd\u0161en\u00e1 I\/O (Input\/Output) z\u00e1t\u011b\u017e p\u0159edstavuje zv\u00fd\u0161en\u00fd po\u010det p\u0159\u00edstup\u016f k Va\u0161im dat\u016fm. Statistiky I\/O z\u00e1t\u011b\u017e\u00ed reprezentuj\u00ed v\u0161echny v\u00fdm\u011bny d\u00e1t mezi webovou aplikac\u00ed b\u011b\u017e\u00edc\u00ed na webov\u00e9m Apache serveru a diskov\u00fdm polem a RAM pam\u011bt\u00ed. D\u016fvody Cel\u00e1 str\u00e1nka, nebo jen jedna jej\u00ed \u010d\u00e1st, za\u017e\u00edv\u00e1 velmi vysokou n\u00e1v\u0161t\u011bvnost. Pod\u00edvejte se na n\u00e1v\u0161t\u011bvnost cel\u00e9 str\u00e1nky,&#8230;<\/p>\n","protected":false},"author":3,"template":"","format":"standard","meta":{"footnotes":""},"ht-kb-category":[87,15],"ht-kb-tag":[],"class_list":["post-424","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-chybove-hlasky","ht_kb_category-hosting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vysok\u00e1 I\/O z\u00e1t\u011b\u017e - Websupport Centrum n\u00e1pov\u011bdy<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Vysok\u00e1 I\/O z\u00e1t\u011b\u017e - Websupport Centrum n\u00e1pov\u011bdy\" \/>\n<meta property=\"og:description\" content=\"Zv\u00fd\u0161en\u00e1 I\/O (Input\/Output) z\u00e1t\u011b\u017e p\u0159edstavuje zv\u00fd\u0161en\u00fd po\u010det p\u0159\u00edstup\u016f k Va\u0161im dat\u016fm. Statistiky I\/O z\u00e1t\u011b\u017e\u00ed reprezentuj\u00ed v\u0161echny v\u00fdm\u011bny d\u00e1t mezi webovou aplikac\u00ed b\u011b\u017e\u00edc\u00ed na webov\u00e9m Apache serveru a diskov\u00fdm polem a RAM pam\u011bt\u00ed. D\u016fvody Cel\u00e1 str\u00e1nka, nebo jen jedna jej\u00ed \u010d\u00e1st, za\u017e\u00edv\u00e1 velmi vysokou n\u00e1v\u0161t\u011bvnost. Pod\u00edvejte se na n\u00e1v\u0161t\u011bvnost cel\u00e9 str\u00e1nky,...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/\" \/>\n<meta property=\"og:site_name\" content=\"Websupport Centrum n\u00e1pov\u011bdy\" \/>\n<meta property=\"article:modified_time\" content=\"2021-07-19T13:47:10+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Odhadovan\u00e1 doba \u010dten\u00ed\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minuty\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/kb\\\/vysoka-i-o-zatez\\\/\",\"url\":\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/kb\\\/vysoka-i-o-zatez\\\/\",\"name\":\"Vysok\u00e1 I\\\/O z\u00e1t\u011b\u017e - Websupport Centrum n\u00e1pov\u011bdy\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/#website\"},\"datePublished\":\"2021-03-03T17:02:15+00:00\",\"dateModified\":\"2021-07-19T13:47:10+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/kb\\\/vysoka-i-o-zatez\\\/#breadcrumb\"},\"inLanguage\":\"cs\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/kb\\\/vysoka-i-o-zatez\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/kb\\\/vysoka-i-o-zatez\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Vysok\u00e1 I\\\/O z\u00e1t\u011b\u017e\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/#website\",\"url\":\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/\",\"name\":\"Websupport Centrum n\u00e1pov\u011bdy\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.websupport.cz\\\/podpora\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"cs\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Vysok\u00e1 I\/O z\u00e1t\u011b\u017e - Websupport Centrum n\u00e1pov\u011bdy","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/","og_locale":"cs_CZ","og_type":"article","og_title":"Vysok\u00e1 I\/O z\u00e1t\u011b\u017e - Websupport Centrum n\u00e1pov\u011bdy","og_description":"Zv\u00fd\u0161en\u00e1 I\/O (Input\/Output) z\u00e1t\u011b\u017e p\u0159edstavuje zv\u00fd\u0161en\u00fd po\u010det p\u0159\u00edstup\u016f k Va\u0161im dat\u016fm. Statistiky I\/O z\u00e1t\u011b\u017e\u00ed reprezentuj\u00ed v\u0161echny v\u00fdm\u011bny d\u00e1t mezi webovou aplikac\u00ed b\u011b\u017e\u00edc\u00ed na webov\u00e9m Apache serveru a diskov\u00fdm polem a RAM pam\u011bt\u00ed. D\u016fvody Cel\u00e1 str\u00e1nka, nebo jen jedna jej\u00ed \u010d\u00e1st, za\u017e\u00edv\u00e1 velmi vysokou n\u00e1v\u0161t\u011bvnost. Pod\u00edvejte se na n\u00e1v\u0161t\u011bvnost cel\u00e9 str\u00e1nky,...","og_url":"https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/","og_site_name":"Websupport Centrum n\u00e1pov\u011bdy","article_modified_time":"2021-07-19T13:47:10+00:00","twitter_card":"summary_large_image","twitter_misc":{"Odhadovan\u00e1 doba \u010dten\u00ed":"2 minuty"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/","url":"https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/","name":"Vysok\u00e1 I\/O z\u00e1t\u011b\u017e - Websupport Centrum n\u00e1pov\u011bdy","isPartOf":{"@id":"https:\/\/www.websupport.cz\/podpora\/#website"},"datePublished":"2021-03-03T17:02:15+00:00","dateModified":"2021-07-19T13:47:10+00:00","breadcrumb":{"@id":"https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/#breadcrumb"},"inLanguage":"cs","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.websupport.cz\/podpora\/kb\/vysoka-i-o-zatez\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.websupport.cz\/podpora\/"},{"@type":"ListItem","position":2,"name":"Vysok\u00e1 I\/O z\u00e1t\u011b\u017e"}]},{"@type":"WebSite","@id":"https:\/\/www.websupport.cz\/podpora\/#website","url":"https:\/\/www.websupport.cz\/podpora\/","name":"Websupport Centrum n\u00e1pov\u011bdy","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.websupport.cz\/podpora\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"cs"}]}},"_links":{"self":[{"href":"https:\/\/www.websupport.cz\/podpora\/wp-json\/wp\/v2\/ht-kb\/424","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.websupport.cz\/podpora\/wp-json\/wp\/v2\/ht-kb"}],"about":[{"href":"https:\/\/www.websupport.cz\/podpora\/wp-json\/wp\/v2\/types\/ht_kb"}],"author":[{"embeddable":true,"href":"https:\/\/www.websupport.cz\/podpora\/wp-json\/wp\/v2\/users\/3"}],"version-history":[{"count":2,"href":"https:\/\/www.websupport.cz\/podpora\/wp-json\/wp\/v2\/ht-kb\/424\/revisions"}],"predecessor-version":[{"id":3890,"href":"https:\/\/www.websupport.cz\/podpora\/wp-json\/wp\/v2\/ht-kb\/424\/revisions\/3890"}],"wp:attachment":[{"href":"https:\/\/www.websupport.cz\/podpora\/wp-json\/wp\/v2\/media?parent=424"}],"wp:term":[{"taxonomy":"ht_kb_category","embeddable":true,"href":"https:\/\/www.websupport.cz\/podpora\/wp-json\/wp\/v2\/ht-kb-category?post=424"},{"taxonomy":"ht_kb_tag","embeddable":true,"href":"https:\/\/www.websupport.cz\/podpora\/wp-json\/wp\/v2\/ht-kb-tag?post=424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}