{"id":18119,"date":"2025-10-26T19:59:01","date_gmt":"2025-10-26T12:59:01","guid":{"rendered":"https:\/\/interdata.vn\/blog\/?p=18119"},"modified":"2025-10-27T14:04:52","modified_gmt":"2025-10-27T07:04:52","slug":"caching-la-gi","status":"publish","type":"post","link":"https:\/\/interdata.vn\/blog\/caching-la-gi\/","title":{"rendered":"Caching l\u00e0 g\u00ec? A-Z C\u00e1ch ho\u1ea1t \u0111\u1ed9ng &#038; Vai tr\u00f2 c\u1ee7a k\u1ef9 thu\u1eadt Caching"},"content":{"rendered":"<p><strong>Caching<\/strong>\u00a0l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 th\u00f4ng tin, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng. Caching l\u00e0 k\u1ef9 thu\u1eadt l\u01b0u tr\u1eef t\u1ea1m th\u1eddi d\u1eef li\u1ec7u \u0111\u1ec3 truy xu\u1ea5t nhanh h\u01a1n trong c\u00e1c l\u1ea7n truy c\u1eadp sau. Hi\u1ec3u r\u00f5 <strong>caching l\u00e0 g\u00ec<\/strong> s\u1ebd gi\u00fap b\u1ea1n t\u1ed1i \u01b0u h\u00f3a h\u1ec7 th\u1ed1ng, gi\u1ea3m t\u1ea3i cho c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 <a href=\"https:\/\/interdata.vn\/blog\/data-preprocessing-la-gi\/\">x\u1eed l\u00fd d\u1eef li\u1ec7u<\/a>. B\u00e0i vi\u1ebft d\u01b0\u1edbi \u0111\u00e2y InterData s\u1ebd gi\u00fap b\u1ea1n kh\u00e1m ph\u00e1 s\u00e2u h\u01a1n v\u1ec1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng, l\u1ee3i \u00edch khi d\u00f9ng Caching v\u00e0 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c ph\u1ed5 bi\u1ebfn c\u1ee7a caching.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed8I DUNG<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Caching-la-gi\" >Caching l\u00e0 g\u00ec?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Cach-thuc-hoat-dong-cua-caching\" >C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a caching<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Loi-ich-khi-su-dung-Caching\" >L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng Caching<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Nang-cao-hieu-suat-ung-dung\" >N\u00e2ng cao hi\u1ec7u su\u1ea5t \u1ee9ng d\u1ee5ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Giam-thieu-chi-phi-thiet-lap-co-so-du-lieu\" >Gi\u1ea3m thi\u1ec3u chi ph\u00ed thi\u1ebft l\u1eadp c\u01a1 s\u1edf d\u1eef li\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Tang-cuong-kha-nang-xu-ly-khi-co-luu-luong-su-dung-tang-dot-bien\" >T\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng x\u1eed l\u00fd khi c\u00f3 l\u01b0u l\u01b0\u1ee3ng s\u1eed d\u1ee5ng t\u0103ng \u0111\u1ed9t bi\u1ebfn<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Giam-tai-cong-viec-cho-he-thong-backend\" >Gi\u1ea3m t\u1ea3i c\u00f4ng vi\u1ec7c cho h\u1ec7 th\u1ed1ng backend<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Tang-so-luong-luot-doc-du-lieu-IOPS\" >T\u0103ng s\u1ed1 l\u01b0\u1ee3ng l\u01b0\u1ee3t \u0111\u1ecdc d\u1eef li\u1ec7u (IOPS)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Han-che-khi-su-dung-caching\" >H\u1ea1n ch\u1ebf khi s\u1eed d\u1ee5ng caching<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Van-de-ve-tinh-nhat-quan-cua-du-lieu\" >V\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a d\u1eef li\u1ec7u<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Quyet-dinh-loai-du-lieu-can-luu-tru-trong-cache\" >Quy\u1ebft \u0111\u1ecbnh lo\u1ea1i d\u1eef li\u1ec7u c\u1ea7n l\u01b0u tr\u1eef trong cache<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Cach-xu-ly-khi-du-lieu-trong-cache-bi-mat\" >C\u00e1ch x\u1eed l\u00fd khi d\u1eef li\u1ec7u trong cache b\u1ecb m\u1ea5t<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Cac-loai-caching-pho-bien-hien-nay\" >C\u00e1c lo\u1ea1i caching ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#1-Cache-aside\" >1. Cache aside<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#2-Read-through\" >2. Read through<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#3-Write-around\" >3. Write around<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#4-Write-back\" >4. Write back<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#5-Write-through\" >5. Write through<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Ung-dung-thuc-te-cua-Caching-trong-Website-He-thong\" >\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Caching trong Website &amp; H\u1ec7 th\u1ed1ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Cac-phuong-phap-thuc-hien-caching\" >C\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c hi\u1ec7n caching<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Su-dung-bo-nho-cache-cua-trinh-duyet\" >S\u1eed d\u1ee5ng b\u1ed9 nh\u1edb cache c\u1ee7a tr\u00ecnh duy\u1ec7t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Tan-dung-CDN-Mang-phan-phoi-noi-dung\" >T\u1eadn d\u1ee5ng CDN (M\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Ap-dung-cac-plugin-caching\" >\u00c1p d\u1ee5ng c\u00e1c plugin caching<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Mot-so-cau-hoi-thuong-gap-ve-Caching\" >M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Caching<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Caching-co-phai-la-mot-ky-thuat-moi-khong\" >Caching c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt m\u1edbi kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Toi-co-the-su-dung-caching-cho-bat-ky-loai-du-lieu-nao-khong\" >T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng caching cho b\u1ea5t k\u1ef3 lo\u1ea1i d\u1eef li\u1ec7u n\u00e0o kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Caching-co-anh-huong-den-bao-mat-he-thong-khong\" >Caching c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ea3o m\u1eadt h\u1ec7 th\u1ed1ng kh\u00f4ng?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/interdata.vn\/blog\/caching-la-gi\/#Co-cac-cong-cu-nao-ho-tro-Caching\" >C\u00f3 c\u00e1c c\u00f4ng c\u1ee5 n\u00e0o h\u1ed7 tr\u1ee3 Caching?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Caching-la-gi\"><\/span>Caching l\u00e0 g\u00ec?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>Caching<\/strong> l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt l\u01b0u tr\u1eef d\u1eef li\u1ec7u t\u1ea1m th\u1eddi, nh\u1eb1m gi\u1ea3m thi\u1ec3u th\u1eddi gian truy c\u1eadp d\u1eef li\u1ec7u v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng. D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong cache c\u00f3 th\u1ec3 \u0111\u1ebfn t\u1eeb m\u1ed9t ngu\u1ed3n d\u1eef li\u1ec7u ch\u00ednh, nh\u01b0 c\u01a1 s\u1edf d\u1eef li\u1ec7u, <a href=\"https:\/\/interdata.vn\/vietnam-dedicated-server\">m\u00e1y ch\u1ee7 web<\/a> ho\u1eb7c tr\u00ecnh duy\u1ec7t c\u1ee7a b\u1ea1n.<\/p>\n<figure id=\"attachment_18121\" aria-describedby=\"caption-attachment-18121\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18121\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Caching-la-gi.jpg\" alt=\"Caching l\u00e0 g\u00ec?\" width=\"800\" height=\"480\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Caching-la-gi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Caching-la-gi-300x180.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Caching-la-gi-768x461.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Caching-la-gi-750x450.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-18121\" class=\"wp-caption-text\">Caching l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p>Thay v\u00ec ph\u1ea3i truy xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb ngu\u1ed3n g\u1ed1c m\u1ed7i khi c\u1ea7n, h\u1ec7 th\u1ed1ng s\u1ebd l\u01b0u tr\u1eef nh\u1eefng b\u1ea3n sao t\u1ea1m th\u1eddi t\u1ea1i cache \u0111\u1ec3 truy c\u1eadp nhanh h\u01a1n. \u0110i\u1ec1u n\u00e0y gi\u00fap gi\u1ea3m th\u1eddi gian ch\u1edd \u0111\u1ee3i v\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd c\u00e1c t\u00e1c v\u1ee5.<\/p>\n<p>Caching c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean nhi\u1ec1u t\u1ea7ng kh\u00e1c nhau, t\u1eeb b\u1ed9 nh\u1edb <a href=\"https:\/\/interdata.vn\/blog\/ram-server\/\">RAM<\/a> tr\u00ean thi\u1ebft b\u1ecb, <a href=\"https:\/\/interdata.vn\/blog\/bo-nho-dem-la-gi\/\">b\u1ed9 nh\u1edb \u0111\u1ec7m<\/a> c\u1ee7a tr\u00ecnh duy\u1ec7t, \u0111\u1ebfn c\u00e1c d\u1ecbch v\u1ee5 \u0111\u00e1m m\u00e2y v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/cdn-la-gi\/\">m\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung<\/a> (CDN). Nh\u00ecn chung, caching \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng r\u1ed9ng r\u00e3i trong h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng t\u1eeb m\u00e1y t\u00ednh c\u00e1 nh\u00e2n \u0111\u1ebfn c\u00e1c <a href=\"https:\/\/interdata.vn\/blog\/web-application-la-gi\/\">\u1ee9ng d\u1ee5ng web<\/a> v\u00e0 h\u1ea1 t\u1ea7ng \u0111\u00e1m m\u00e2y.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cach-thuc-hoat-dong-cua-caching\"><\/span>C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a caching<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Sau khi \u0111\u00e3 n\u1eafm r\u00f5 \u0111\u1ecbnh ngh\u0129a caching l\u00e0 g\u00ec, ch\u00fang ta s\u1ebd ti\u1ebfp t\u1ee5c kh\u00e1m ph\u00e1 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3 nh\u00e9!<\/p>\n<p>Cache th\u01b0\u1eddng l\u01b0u tr\u1eef d\u1eef li\u1ec7u trong b\u1ed9 nh\u1edb RAM (b\u1ed9 nh\u1edb truy c\u1eadp ng\u1eabu nhi\u00ean). M\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a vi\u1ec7c n\u00e0y l\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t khi truy c\u1eadp d\u1eef li\u1ec7u. Cache ch\u1ec9 l\u01b0u tr\u1eef m\u1ed9t ph\u1ea7n d\u1eef li\u1ec7u c\u1ea7n thi\u1ebft, gi\u00fap gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian truy xu\u1ea5t b\u1eb1ng c\u00e1ch l\u01b0u t\u1ea1m th\u1eddi c\u00e1c th\u00f4ng tin quan tr\u1ecdng.<\/p>\n<p>Khi b\u1ea1n truy c\u1eadp v\u00e0o m\u1ed9t <a href=\"https:\/\/interdata.vn\/blog\/page-la-gi\/\">trang web<\/a> ho\u1eb7c \u1ee9ng d\u1ee5ng, m\u00e1y t\u00ednh s\u1ebd g\u1eedi y\u00eau c\u1ea7u t\u1edbi <a href=\"https:\/\/interdata.vn\/blog\/may-chu-server-la-gi\/\">m\u00e1y ch\u1ee7<\/a> \u0111\u1ec3 l\u1ea5y th\u00f4ng tin. Tuy nhi\u00ean, n\u1ebfu d\u1eef li\u1ec7u \u0111\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c l\u01b0u s\u1eb5n trong b\u1ed9 nh\u1edb cache, m\u00e1y t\u00ednh c\u00f3 th\u1ec3 truy xu\u1ea5t n\u00f3 ngay l\u1eadp t\u1ee9c m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i l\u1ea5y l\u1ea1i t\u1eeb m\u00e1y ch\u1ee7. Nh\u1edd v\u1eady, th\u1eddi gian t\u1ea3i trang \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn v\u00e0 t\u1ed1c \u0111\u1ed9 truy c\u1eadp d\u1eef li\u1ec7u tr\u1edf n\u00ean nhanh h\u01a1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Loi-ich-khi-su-dung-Caching\"><\/span>L\u1ee3i \u00edch khi s\u1eed d\u1ee5ng Caching<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Nang-cao-hieu-suat-ung-dung\"><\/span>N\u00e2ng cao hi\u1ec7u su\u1ea5t \u1ee9ng d\u1ee5ng<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>L\u1ee3i \u00edch l\u1edbn nh\u1ea5t c\u1ee7a caching l\u00e0 t\u0103ng t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd d\u1eef li\u1ec7u. B\u1eb1ng c\u00e1ch gi\u1ea3m b\u1edbt l\u01b0\u1ee3ng <a href=\"https:\/\/interdata.vn\/blog\/query-la-gi\/\">truy v\u1ea5n<\/a> \u0111\u1ebfn c\u01a1 s\u1edf d\u1eef li\u1ec7u ho\u1eb7c m\u00e1y ch\u1ee7 g\u1ed1c, caching gi\u00fap h\u1ec7 th\u1ed1ng ph\u1ea3n h\u1ed3i nhanh ch\u00f3ng h\u01a1n, \u0111\u1eb7c bi\u1ec7t trong c\u00e1c h\u1ec7 th\u1ed1ng y\u00eau c\u1ea7u \u0111\u1ed9 tr\u1ec5 th\u1ea5p nh\u01b0 c\u00e1c trang th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed ho\u1eb7c \u1ee9ng d\u1ee5ng truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Giam-thieu-chi-phi-thiet-lap-co-so-du-lieu\"><\/span>Gi\u1ea3m thi\u1ec3u chi ph\u00ed thi\u1ebft l\u1eadp c\u01a1 s\u1edf d\u1eef li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Khi truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u th\u01b0\u1eddng xuy\u00ean, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng, chi ph\u00ed v\u1ec1 t\u00e0i nguy\u00ean v\u00e0 th\u1eddi gian s\u1ebd r\u1ea5t l\u1edbn. Caching gi\u00fap gi\u1ea3m b\u1edbt s\u1ed1 l\u01b0\u1ee3ng truy v\u1ea5n c\u1ea7n thi\u1ebft \u0111\u1ebfn c\u01a1 s\u1edf d\u1eef li\u1ec7u, t\u1eeb \u0111\u00f3 gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh v\u00e0 b\u1ea3o tr\u00ec c\u01a1 s\u1edf d\u1eef li\u1ec7u.<\/p>\n<figure id=\"attachment_18122\" aria-describedby=\"caption-attachment-18122\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18122\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-loi-ich-cua-caching-la-gi.jpg\" alt=\"Nh\u1eefng l\u1ee3i \u00edch c\u1ee7a caching l\u00e0 g\u00ec?\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-loi-ich-cua-caching-la-gi.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-loi-ich-cua-caching-la-gi-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-loi-ich-cua-caching-la-gi-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-loi-ich-cua-caching-la-gi-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-18122\" class=\"wp-caption-text\">Nh\u1eefng l\u1ee3i \u00edch c\u1ee7a caching l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Tang-cuong-kha-nang-xu-ly-khi-co-luu-luong-su-dung-tang-dot-bien\"><\/span>T\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng x\u1eed l\u00fd khi c\u00f3 l\u01b0u l\u01b0\u1ee3ng s\u1eed d\u1ee5ng t\u0103ng \u0111\u1ed9t bi\u1ebfn<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Trong c\u00e1c \u0111\u1ee3t t\u0103ng l\u01b0u l\u01b0\u1ee3ng b\u1ea5t ng\u1edd, nh\u01b0 s\u1ef1 ki\u1ec7n gi\u1ea3m gi\u00e1 tr\u00ean c\u00e1c trang th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, caching gi\u00fap \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 x\u1eed l\u00fd m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng l\u1edbn y\u00eau c\u1ea7u m\u00e0 kh\u00f4ng g\u00e2y qu\u00e1 t\u1ea3i cho m\u00e1y ch\u1ee7 g\u1ed1c. C\u00e1c y\u00eau c\u1ea7u s\u1ebd \u0111\u01b0\u1ee3c x\u1eed l\u00fd t\u1eeb cache, l\u00e0m gi\u1ea3m \u00e1p l\u1ef1c l\u00ean h\u1ec7 th\u1ed1ng backend.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Giam-tai-cong-viec-cho-he-thong-backend\"><\/span>Gi\u1ea3m t\u1ea3i c\u00f4ng vi\u1ec7c cho h\u1ec7 th\u1ed1ng backend<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Backend th\u01b0\u1eddng l\u00e0 n\u01a1i ph\u1ea3i x\u1eed l\u00fd nhi\u1ec1u y\u00eau c\u1ea7u truy v\u1ea5n ph\u1ee9c t\u1ea1p t\u1eeb ng\u01b0\u1eddi d\u00f9ng. Caching gi\u00fap gi\u1ea3m t\u1ea3i cho backend b\u1eb1ng c\u00e1ch l\u01b0u tr\u1eef nh\u1eefng th\u00f4ng tin c\u1ea7n thi\u1ebft tr\u1ef1c ti\u1ebfp trong b\u1ed9 nh\u1edb \u0111\u1ec7m, gi\u00fap backend t\u1eadp trung v\u00e0o c\u00e1c t\u00e1c v\u1ee5 quan tr\u1ecdng h\u01a1n.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Tang-so-luong-luot-doc-du-lieu-IOPS\"><\/span>T\u0103ng s\u1ed1 l\u01b0\u1ee3ng l\u01b0\u1ee3t \u0111\u1ecdc d\u1eef li\u1ec7u (IOPS)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>S\u1ed1 l\u01b0\u1ee3t \u0111\u1ecdc d\u1eef li\u1ec7u tr\u00ean c\u00e1c thi\u1ebft b\u1ecb l\u01b0u tr\u1eef c\u00f3 th\u1ec3 b\u1ecb gi\u1edbi h\u1ea1n b\u1edfi t\u1ed1c \u0111\u1ed9 I\/O. Khi s\u1eed d\u1ee5ng caching, s\u1ed1 l\u01b0\u1ee3ng l\u01b0\u1ee3t \u0111\u1ecdc c\u00f3 th\u1ec3 t\u0103ng l\u00ean, v\u00ec c\u00e1c y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c x\u1eed l\u00fd nhanh h\u01a1n v\u00e0 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy c\u1eadp t\u1eeb b\u1ed9 nh\u1edb cache thay v\u00ec t\u1eeb \u0111\u0129a c\u1ee9ng ho\u1eb7c h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef ch\u1eadm h\u01a1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Han-che-khi-su-dung-caching\"><\/span>H\u1ea1n ch\u1ebf khi s\u1eed d\u1ee5ng caching<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1eb7c d\u00f9 c\u00f3 nhi\u1ec1u l\u1ee3i \u00edch, nh\u01b0ng Caching c\u0169ng t\u1ed3n t\u1ea1i m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u01b0 sau:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Van-de-ve-tinh-nhat-quan-cua-du-lieu\"><\/span>V\u1ea5n \u0111\u1ec1 v\u1ec1 t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a d\u1eef li\u1ec7u<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>M\u1ed9t trong nh\u1eefng th\u00e1ch th\u1ee9c l\u1edbn nh\u1ea5t c\u1ee7a caching l\u00e0 vi\u1ec7c duy tr\u00ec t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a d\u1eef li\u1ec7u. N\u1ebfu d\u1eef li\u1ec7u g\u1ed1c thay \u0111\u1ed5i m\u00e0 cache kh\u00f4ng \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt k\u1ecbp th\u1eddi, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 th\u00f4ng tin l\u1ed7i th\u1eddi, g\u00e2y ra nh\u1eefng v\u1ea5n \u0111\u1ec1 nghi\u00eam tr\u1ecdng, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u1ee9ng d\u1ee5ng \u0111\u00f2i h\u1ecfi \u0111\u1ed9 ch\u00ednh x\u00e1c cao nh\u01b0 h\u1ec7 th\u1ed1ng t\u00e0i ch\u00ednh.<\/p>\n<figure id=\"attachment_18123\" aria-describedby=\"caption-attachment-18123\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18123\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-han-che-cua-caching-la-gi.png\" alt=\"Nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a caching l\u00e0 g\u00ec?\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-han-che-cua-caching-la-gi.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-han-che-cua-caching-la-gi-300x188.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-han-che-cua-caching-la-gi-768x480.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Nhung-han-che-cua-caching-la-gi-750x469.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-18123\" class=\"wp-caption-text\">Nh\u1eefng h\u1ea1n ch\u1ebf c\u1ee7a caching l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Quyet-dinh-loai-du-lieu-can-luu-tru-trong-cache\"><\/span>Quy\u1ebft \u0111\u1ecbnh lo\u1ea1i d\u1eef li\u1ec7u c\u1ea7n l\u01b0u tr\u1eef trong cache<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u \u0111\u1ec1u ph\u00f9 h\u1ee3p \u0111\u1ec3 l\u01b0u tr\u1eef trong cache. M\u1ed9t s\u1ed1 d\u1eef li\u1ec7u thay \u0111\u1ed5i th\u01b0\u1eddng xuy\u00ean ho\u1eb7c kh\u00f4ng quan tr\u1ecdng cho vi\u1ec7c truy xu\u1ea5t nhanh ch\u00f3ng c\u00f3 th\u1ec3 kh\u00f4ng c\u1ea7n \u0111\u01b0\u1ee3c cache. Quy\u1ebft \u0111\u1ecbnh \u0111\u00fang lo\u1ea1i d\u1eef li\u1ec7u c\u1ea7n l\u01b0u tr\u1eef l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t m\u00e0 kh\u00f4ng t\u1ed1n qu\u00e1 nhi\u1ec1u t\u00e0i nguy\u00ean.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cach-xu-ly-khi-du-lieu-trong-cache-bi-mat\"><\/span>C\u00e1ch x\u1eed l\u00fd khi d\u1eef li\u1ec7u trong cache b\u1ecb m\u1ea5t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>D\u1eef li\u1ec7u trong cache c\u00f3 th\u1ec3 b\u1ecb m\u1ea5t do h\u1ebft th\u1eddi gian t\u1ed3n t\u1ea1i (<a href=\"https:\/\/interdata.vn\/blog\/ttl-la-gi\/\">TTL<\/a>) ho\u1eb7c do l\u1ed7i h\u1ec7 th\u1ed1ng. Khi \u0111\u00f3, h\u1ec7 th\u1ed1ng ph\u1ea3i quay l\u1ea1i ngu\u1ed3n d\u1eef li\u1ec7u ch\u00ednh \u0111\u1ec3 l\u1ea5y th\u00f4ng tin, d\u1eabn \u0111\u1ebfn th\u1eddi gian ph\u1ea3n h\u1ed3i ch\u1eadm h\u01a1n. Do \u0111\u00f3, vi\u1ec7c qu\u1ea3n l\u00fd cache t\u1ed1t l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o h\u1ec7 th\u1ed1ng lu\u00f4n ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac-loai-caching-pho-bien-hien-nay\"><\/span>C\u00e1c lo\u1ea1i caching ph\u1ed5 bi\u1ebfn hi\u1ec7n nay<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hi\u1ec7n nay, c\u00e1c chi\u1ebfn l\u01b0\u1ee3c caching \u0111\u01b0\u1ee3c ph\u00e2n th\u00e0nh hai lo\u1ea1i ch\u00ednh:<\/p>\n<ul>\n<li>Chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ecdc d\u1eef li\u1ec7u: bao g\u1ed3m Cache aside v\u00e0 Read through.<\/li>\n<li>Chi\u1ebfn l\u01b0\u1ee3c ghi d\u1eef li\u1ec7u: bao g\u1ed3m Write around, Write back v\u00e0 Write through.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"1-Cache-aside\"><\/span>1. Cache aside<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Chi\u1ebfn l\u01b0\u1ee3c &#8220;Cache aside&#8221;, hay c\u00f2n g\u1ecdi l\u00e0 &#8220;Lazy loading&#8221; ho\u1eb7c &#8220;Load-through cache&#8221;, l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh r\u1ea5t h\u1eefu \u00edch trong c\u00e1c t\u00ecnh hu\u1ed1ng m\u00e0 d\u1eef li\u1ec7u kh\u00f4ng \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt th\u01b0\u1eddng xuy\u00ean nh\u01b0ng y\u00eau c\u1ea7u truy xu\u1ea5t nhanh ch\u00f3ng.<\/p>\n<p>Trong Cache aside \u1ee9ng d\u1ee5ng ch\u1ecbu tr\u00e1ch nhi\u1ec7m qu\u1ea3n l\u00fd vi\u1ec7c \u0111\u1ecdc v\u00e0 ghi v\u00e0o cache. Khi \u1ee9ng d\u1ee5ng c\u1ea7n d\u1eef li\u1ec7u, n\u00f3 s\u1ebd t\u00ecm trong cache tr\u01b0\u1edbc. N\u1ebfu kh\u00f4ng t\u00ecm th\u1ea5y (<a href=\"https:\/\/interdata.vn\/blog\/cache-hit-va-cache-miss-la-gi\/\">cache miss<\/a>), n\u00f3 s\u1ebd l\u1ea5y d\u1eef li\u1ec7u t\u1eeb ngu\u1ed3n g\u1ed1c (nh\u01b0 c\u01a1 s\u1edf d\u1eef li\u1ec7u) v\u00e0 sau \u0111\u00f3 l\u01b0u d\u1eef li\u1ec7u n\u00e0y v\u00e0o cache \u0111\u1ec3 ph\u1ee5c v\u1ee5 cho c\u00e1c y\u00eau c\u1ea7u ti\u1ebfp theo.<\/p>\n<p><strong>\u01afu \u0111i\u1ec3m c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c Cache Aside<\/strong>:<\/p>\n<ul>\n<li><strong>Ti\u1ebft ki\u1ec7m t\u00e0i nguy\u00ean<\/strong>: Cache aside th\u1ef1c hi\u1ec7n vi\u1ec7c l\u01b0u d\u1eef li\u1ec7u v\u00e0o cache khi th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft, th\u00f4ng qua vi\u1ec7c n\u00e0y Cache aside gi\u00fap gi\u1ea3m thi\u1ec3u vi\u1ec7c l\u00e3ng ph\u00ed b\u1ed9 nh\u1edb cho c\u00e1c d\u1eef li\u1ec7u \u00edt \u0111\u01b0\u1ee3c truy c\u1eadp.<\/li>\n<li><strong>T\u00ednh linh ho\u1ea1t<\/strong>: Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y cho ph\u00e9p b\u1ea1n t\u1ef1 do \u0111i\u1ec1u ch\u1ec9nh khi n\u00e0o n\u00ean th\u00eam d\u1eef li\u1ec7u v\u00e0o cache v\u00e0 khi n\u00e0o n\u00ean x\u00f3a d\u1eef li\u1ec7u kh\u1ecfi cache, t\u1eeb \u0111\u00f3 t\u1ed1i \u01b0u h\u00f3a c\u1ea3 hi\u1ec7u su\u1ea5t l\u1eabn t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng.<\/li>\n<li><strong>D\u1ec5 tri\u1ec3n khai<\/strong>: Cache aside l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111\u01a1n gi\u1ea3n, d\u1ec5 d\u00e0ng t\u00edch h\u1ee3p v\u00e0o h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng c\u1ea7n qu\u00e1 nhi\u1ec1u c\u00f4ng s\u1ee9c hay ph\u1ee9c t\u1ea1p.<\/li>\n<\/ul>\n<figure id=\"attachment_18125\" aria-describedby=\"caption-attachment-18125\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18125\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Cache-aside-.png\" alt=\"Lo\u1ea1i Caching ph\u1ed5 bi\u1ebfn hi\u1ec7n nay - Cache aside\u00a0\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Cache-aside-.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Cache-aside--300x188.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Cache-aside--768x480.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Cache-aside--750x469.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-18125\" class=\"wp-caption-text\">Lo\u1ea1i Caching ph\u1ed5 bi\u1ebfn hi\u1ec7n nay &#8211; Cache aside<\/figcaption><\/figure>\n<p><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c Cache Aside<\/strong>:<\/p>\n<ul>\n<li><strong>Kh\u1ea3 n\u0103ng d\u1eef li\u1ec7u kh\u00f4ng \u0111\u1ed3ng b\u1ed9<\/strong>: B\u1ea1n ph\u1ea3i t\u1ef1 ch\u1ecbu tr\u00e1ch nhi\u1ec7m trong vi\u1ec7c \u0111\u1ed3ng b\u1ed9 h\u00f3a d\u1eef li\u1ec7u gi\u1eefa cache v\u00e0 ngu\u1ed3n d\u1eef li\u1ec7u ch\u00ednh. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng d\u1eef li\u1ec7u trong cache b\u1ecb l\u1ed7i th\u1eddi ho\u1eb7c kh\u00f4ng nh\u1ea5t qu\u00e1n v\u1edbi d\u1eef li\u1ec7u g\u1ed1c.<\/li>\n<li><strong>\u0110\u1ed9 tr\u1ec5 c\u00f3 th\u1ec3 g\u1eb7p r\u1ee7i ro<\/strong>: Khi d\u1eef li\u1ec7u kh\u00f4ng t\u1ed3n t\u1ea1i trong cache, h\u1ec7 th\u1ed1ng ph\u1ea3i truy xu\u1ea5t t\u1eeb ngu\u1ed3n g\u1ed1c, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 ch\u1eadm tr\u1ec5, \u1ea3nh h\u01b0\u1edfng ti\u00eau c\u1ef1c \u0111\u1ebfn th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ee7a h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5<\/strong>: M\u1ed9t trang web b\u00e1n h\u00e0ng ki\u1ec3m tra cache tr\u01b0\u1edbc khi l\u1ea5y d\u1eef li\u1ec7u v\u1ec1 s\u1ea3n ph\u1ea9m. N\u1ebfu s\u1ea3n ph\u1ea9m kh\u00f4ng c\u00f3 trong cache, h\u1ec7 th\u1ed1ng s\u1ebd truy v\u1ea5n c\u01a1 s\u1edf d\u1eef li\u1ec7u, l\u01b0u v\u00e0o cache v\u00e0 tr\u1ea3 v\u1ec1 k\u1ebft qu\u1ea3 cho ng\u01b0\u1eddi d\u00f9ng. \u0110i\u1ec1u n\u00e0y gi\u00fap c\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 cho c\u00e1c l\u1ea7n truy c\u1eadp sau.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2-Read-through\"><\/span>2. Read through<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Read through l\u00e0 chi\u1ebfn l\u01b0\u1ee3c trong \u0111\u00f3 \u1ee9ng d\u1ee5ng kh\u00f4ng tr\u1ef1c ti\u1ebfp t\u01b0\u01a1ng t\u00e1c v\u1edbi cache. Thay v\u00e0o \u0111\u00f3, khi c\u1ea7n d\u1eef li\u1ec7u, \u1ee9ng d\u1ee5ng g\u1eedi y\u00eau c\u1ea7u t\u1edbi cache. N\u1ebfu d\u1eef li\u1ec7u kh\u00f4ng c\u00f3 s\u1eb5n (cache miss), cache s\u1ebd t\u1ef1 \u0111\u1ed9ng l\u1ea5y d\u1eef li\u1ec7u t\u1eeb ngu\u1ed3n g\u1ed1c v\u00e0 l\u01b0u l\u1ea1i trong cache, sau \u0111\u00f3 tr\u1ea3 k\u1ebft qu\u1ea3 v\u1ec1 cho \u1ee9ng d\u1ee5ng.<\/p>\n<p><strong>\u01afu \u0111i\u1ec3m c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c Read Through<\/strong>:<\/p>\n<ul>\n<li><strong>T\u1ef1 \u0111\u1ed9ng l\u00e0m m\u1edbi cache<\/strong>: H\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng truy xu\u1ea5t d\u1eef li\u1ec7u t\u1eeb ngu\u1ed3n g\u1ed1c v\u00e0 c\u1eadp nh\u1eadt v\u00e0o cache khi c\u1ea7n, \u0111\u1ea3m b\u1ea3o r\u1eb1ng d\u1eef li\u1ec7u trong cache lu\u00f4n \u0111\u1ed3ng nh\u1ea5t v\u00e0 m\u1edbi nh\u1ea5t.<\/li>\n<li><strong>H\u1ea1n ch\u1ebf t\u00ecnh tr\u1ea1ng d\u1eef li\u1ec7u c\u0169<\/strong>: V\u1edbi c\u01a1 ch\u1ebf t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt, chi\u1ebfn l\u01b0\u1ee3c n\u00e0y gi\u00fap gi\u1ea3m thi\u1ec3u nguy c\u01a1 d\u1eef li\u1ec7u trong cache b\u1ecb l\u1ed7i th\u1eddi.<\/li>\n<li><strong>Gi\u1ea3m thi\u1ec3u c\u00f4ng vi\u1ec7c qu\u1ea3n l\u00fd<\/strong>: Ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng c\u1ea7n ph\u1ea3i lo l\u1eafng v\u1ec1 vi\u1ec7c c\u1eadp nh\u1eadt cache th\u1ee7 c\u00f4ng, ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 c\u00f4ng s\u1ee9c trong vi\u1ec7c duy tr\u00ec h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<p><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c Read Through:<\/strong><\/p>\n<ul>\n<li><strong>Y\u00eau c\u1ea7u l\u1edbp trung gian<\/strong>: Vi\u1ec7c tri\u1ec3n khai c\u1ea7n c\u00f3 m\u1ed9t l\u1edbp trung gian ho\u1eb7c th\u01b0 vi\u1ec7n h\u1ed7 tr\u1ee3, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m h\u1ec7 th\u1ed1ng ph\u1ee9c t\u1ea1p h\u01a1n trong qu\u00e1 tr\u00ecnh c\u00e0i \u0111\u1eb7t v\u00e0 qu\u1ea3n l\u00fd.<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5<\/strong>: Khi m\u1ed9t trang web th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed c\u1ea7n xem s\u1ed1 l\u01b0\u1ee3ng h\u00e0ng t\u1ed3n kho, h\u1ec7 th\u1ed1ng s\u1ebd y\u00eau c\u1ea7u d\u1eef li\u1ec7u t\u1eeb cache. N\u1ebfu kh\u00f4ng c\u00f3, n\u00f3 t\u1ef1 \u0111\u1ed9ng l\u1ea5y t\u1eeb c\u01a1 s\u1edf d\u1eef li\u1ec7u, c\u1eadp nh\u1eadt cache v\u00e0 tr\u1ea3 v\u1ec1 cho ng\u01b0\u1eddi d\u00f9ng.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3-Write-around\"><\/span>3. Write around<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Write around l\u00e0 chi\u1ebfn l\u01b0\u1ee3c trong \u0111\u00f3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ghi tr\u1ef1c ti\u1ebfp v\u00e0o ngu\u1ed3n d\u1eef li\u1ec7u g\u1ed1c (ch\u1eb3ng h\u1ea1n nh\u01b0 c\u01a1 s\u1edf d\u1eef li\u1ec7u), nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c ghi ngay v\u00e0o cache. Cache s\u1ebd ch\u1ec9 l\u01b0u tr\u1eef d\u1eef li\u1ec7u khi n\u00f3 \u0111\u01b0\u1ee3c \u0111\u1ecdc l\u1ea1i sau n\u00e0y. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c t\u00ecnh hu\u1ed1ng khi vi\u1ec7c \u0111\u1ecdc d\u1eef li\u1ec7u kh\u00f4ng x\u1ea3y ra th\u01b0\u1eddng xuy\u00ean sau khi ghi.<\/p>\n<p><strong>\u01afu \u0111i\u1ec3m c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c Write Around<\/strong>:<\/p>\n<ul>\n<li><strong>Gi\u1ea3m thi\u1ec3u \u0111\u1ed9 tr\u1ec5 khi ghi<\/strong>: B\u1eb1ng c\u00e1ch kh\u00f4ng ghi d\u1eef li\u1ec7u ngay v\u00e0o cache, chi\u1ebfn l\u01b0\u1ee3c n\u00e0y tr\u00e1nh vi\u1ec7c \u0111\u1ed3ng b\u1ed9 h\u00f3a kh\u00f4ng c\u1ea7n thi\u1ebft gi\u1eefa cache v\u00e0 ngu\u1ed3n d\u1eef li\u1ec7u ch\u00ednh, t\u1eeb \u0111\u00f3 gi\u00fap ti\u1ebft ki\u1ec7m t\u00e0i nguy\u00ean cache cho nh\u1eefng d\u1eef li\u1ec7u c\u00f3 t\u1ea7n su\u1ea5t truy c\u1eadp cao.<\/li>\n<\/ul>\n<figure id=\"attachment_18128\" aria-describedby=\"caption-attachment-18128\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18128\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-around-1.png\" alt=\"Lo\u1ea1i Caching ph\u1ed5 bi\u1ebfn hi\u1ec7n nay - Write around\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-around-1.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-around-1-300x188.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-around-1-768x480.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-around-1-750x469.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-18128\" class=\"wp-caption-text\">Lo\u1ea1i Caching ph\u1ed5 bi\u1ebfn hi\u1ec7n nay &#8211; Write around<\/figcaption><\/figure>\n<p><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c Write Around<\/strong>:<\/p>\n<ul>\n<li><strong>\u0110\u1ed9 tr\u1ec5 khi \u0111\u1ecdc c\u00f3 th\u1ec3 g\u00e2y ra r\u1ee7i ro<\/strong>: Khi d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c truy c\u1eadp l\u1ea7n \u0111\u1ea7u sau khi ghi, c\u00f3 th\u1ec3 x\u1ea3y ra \u0111\u1ed9 tr\u1ec5 do d\u1eef li\u1ec7u ph\u1ea3i \u0111\u01b0\u1ee3c l\u1ea5y t\u1eeb ngu\u1ed3n g\u1ed1c v\u00e0 n\u1ea1p v\u00e0o cache, l\u00e0m ch\u1eadm qu\u00e1 tr\u00ecnh truy xu\u1ea5t th\u00f4ng tin.<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5<\/strong>: Trong h\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef video, video m\u1edbi \u0111\u01b0\u1ee3c t\u1ea3i l\u00ean tr\u1ef1c ti\u1ebfp v\u00e0o c\u01a1 s\u1edf d\u1eef li\u1ec7u m\u00e0 kh\u00f4ng l\u01b0u v\u00e0o cache. Ch\u1ec9 khi video \u0111\u00f3 \u0111\u01b0\u1ee3c xem, cache m\u1edbi c\u1eadp nh\u1eadt \u0111\u1ec3 t\u1ed1i \u01b0u kh\u00f4ng gian cho nh\u1eefng video hay truy c\u1eadp.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4-Write-back\"><\/span>4. Write back<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Write back (c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 write-behind) l\u00e0 chi\u1ebfn l\u01b0\u1ee3c trong \u0111\u00f3 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ghi v\u00e0o cache tr\u01b0\u1edbc, sau \u0111\u00f3 ghi l\u1ea1i v\u00e0o ngu\u1ed3n d\u1eef li\u1ec7u g\u1ed1c theo th\u1eddi gian. D\u1eef li\u1ec7u thay \u0111\u1ed5i trong cache s\u1ebd \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef t\u1ea1m th\u1eddi v\u00e0 ch\u1ec9 ghi v\u00e0o c\u01a1 s\u1edf d\u1eef li\u1ec7u khi c\u1ea7n thi\u1ebft, gi\u1ea3m thi\u1ec3u s\u1ed1 l\u1ea7n ghi v\u00e0o h\u1ec7 th\u1ed1ng g\u1ed1c.<\/p>\n<p><strong>\u01afu \u0111i\u1ec3m c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c Write Back<\/strong>:<\/p>\n<ul>\n<li><strong>T\u0103ng hi\u1ec7u su\u1ea5t ghi<\/strong>: C\u1ea3i thi\u1ec7n t\u1ed1c \u0111\u1ed9 x\u1eed l\u00fd b\u1eb1ng c\u00e1ch gi\u1ea3m \u0111\u00e1ng k\u1ec3 \u0111\u1ed9 tr\u1ec5 khi ghi d\u1eef li\u1ec7u, do vi\u1ec7c ghi v\u00e0o cache di\u1ec5n ra nhanh ch\u00f3ng h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c ghi tr\u1ef1c ti\u1ebfp v\u00e0o ngu\u1ed3n d\u1eef li\u1ec7u ch\u00ednh.<\/li>\n<li><strong>T\u1ed1i \u01b0u h\u00f3a t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng<\/strong>: Gi\u1ea3m \u00e1p l\u1ef1c l\u00ean ngu\u1ed3n d\u1eef li\u1ec7u g\u1ed1c, cho ph\u00e9p h\u1ec7 th\u1ed1ng d\u1ec5 d\u00e0ng x\u1eed l\u00fd c\u00e1c y\u00eau c\u1ea7u kh\u00e1c m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n.<\/li>\n<\/ul>\n<figure id=\"attachment_18127\" aria-describedby=\"caption-attachment-18127\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18127\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-back.png\" alt=\"Lo\u1ea1i Caching ph\u1ed5 bi\u1ebfn hi\u1ec7n nay - Write back\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-back.png 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-back-300x188.png 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-back-768x480.png 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Loai-Caching-pho-bien-hien-nay-Write-back-750x469.png 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-18127\" class=\"wp-caption-text\">Lo\u1ea1i Caching ph\u1ed5 bi\u1ebfn hi\u1ec7n nay &#8211; Write back<\/figcaption><\/figure>\n<p><strong>Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a chi\u1ebfn l\u01b0\u1ee3c Write Back<\/strong>:<\/p>\n<ul>\n<li><strong>Nguy c\u01a1 m\u1ea5t d\u1eef li\u1ec7u<\/strong>: Trong tr\u01b0\u1eddng h\u1ee3p h\u1ec7 th\u1ed1ng g\u1eb7p s\u1ef1 c\u1ed1 tr\u01b0\u1edbc khi d\u1eef li\u1ec7u k\u1ecbp \u0111\u1ed3ng b\u1ed9 v\u1edbi ngu\u1ed3n d\u1eef li\u1ec7u ch\u00ednh, c\u00f3 nguy c\u01a1 cao d\u1eef li\u1ec7u ch\u01b0a \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef s\u1ebd b\u1ecb m\u1ea5t.<\/li>\n<li><strong>Qu\u1ea3n l\u00fd ph\u1ee9c t\u1ea1p<\/strong>: C\u1ea7n c\u00f3 c\u01a1 ch\u1ebf qu\u1ea3n l\u00fd cache v\u00e0 \u0111\u1ed3ng b\u1ed9 h\u00f3a d\u1eef li\u1ec7u hi\u1ec7u qu\u1ea3 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 \u0111\u00e1ng tin c\u1eady c\u1ee7a d\u1eef li\u1ec7u trong to\u00e0n h\u1ec7 th\u1ed1ng.<\/li>\n<\/ul>\n<p><strong>V\u00ed d\u1ee5<\/strong>: Trong h\u1ec7 th\u1ed1ng ghi nh\u1eadt k\u00fd (logging), c\u00e1c b\u1ea3n ghi m\u1edbi \u0111\u01b0\u1ee3c l\u01b0u ngay v\u00e0o cache \u0111\u1ec3 ghi nh\u1eadn nhanh ch\u00f3ng. Sau \u0111\u00f3, v\u00e0o th\u1eddi \u0111i\u1ec3m th\u00edch h\u1ee3p, d\u1eef li\u1ec7u n\u00e0y s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 h\u00f3a v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u ch\u00ednh \u0111\u1ec3 gi\u1ea3m thi\u1ec3u vi\u1ec7c truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o ngu\u1ed3n d\u1eef li\u1ec7u.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5-Write-through\"><\/span>5. Write through<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Write through l\u00e0 chi\u1ebfn l\u01b0\u1ee3c trong \u0111\u00f3 m\u1ecdi thay \u0111\u1ed5i d\u1eef li\u1ec7u s\u1ebd \u0111\u01b0\u1ee3c ghi v\u00e0o c\u1ea3 cache v\u00e0 ngu\u1ed3n d\u1eef li\u1ec7u g\u1ed1c c\u00f9ng m\u1ed9t l\u00fac. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a d\u1eef li\u1ec7u gi\u1eefa cache v\u00e0 ngu\u1ed3n g\u1ed1c.<\/p>\n<p><strong>V\u00ed d\u1ee5<\/strong>: M\u1ed9t h\u1ec7 th\u1ed1ng ng\u00e2n h\u00e0ng ghi d\u1eef li\u1ec7u giao d\u1ecbch \u0111\u1ed3ng th\u1eddi v\u00e0o c\u1ea3 cache v\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi thay \u0111\u1ed5i \u0111\u1ec1u \u0111\u01b0\u1ee3c ph\u1ea3n \u00e1nh ngay l\u1eadp t\u1ee9c \u1edf c\u1ea3 hai n\u01a1i, gi\u00fap \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n v\u00e0 tin c\u1eady trong c\u00e1c giao d\u1ecbch t\u00e0i ch\u00ednh quan tr\u1ecdng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Ung-dung-thuc-te-cua-Caching-trong-Website-He-thong\"><\/span>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Caching trong Website &amp; H\u1ec7 th\u1ed1ng<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u1ee8ng d\u1ee5ng th\u1ef1c t\u1ebf c\u1ee7a Caching trong <a href=\"https:\/\/interdata.vn\/blog\/website-la-gi\/\">Website<\/a> v\u00e0 H\u1ec7 th\u1ed1ng r\u1ea5t \u0111a d\u1ea1ng v\u00e0 quan tr\u1ecdng nh\u1eb1m t\u0103ng hi\u1ec7u su\u1ea5t v\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/ux-la-gi\/\">tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng<\/a>:<\/p>\n<ul>\n<li><strong>T\u0103ng t\u1ed1c \u0111\u1ed9 t\u1ea3i trang<\/strong>: C\u00e1c n\u1ed9i dung t\u0129nh nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/html-la-gi\/\">HTML<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/css-la-gi\/\">CSS<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/javascript-la-gi\/\">JavaScript<\/a>, h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong cache gi\u00fap tr\u00ecnh duy\u1ec7t ho\u1eb7c m\u00e1y ch\u1ee7 tr\u1ea3 l\u1ea1i d\u1eef li\u1ec7u nhanh h\u01a1n thay v\u00ec truy xu\u1ea5t t\u1eeb ngu\u1ed3n g\u1ed1c. V\u1edbi n\u1ed9i dung \u0111\u1ed9ng, cache ph\u00eda server l\u01b0u c\u00e1c b\u1ea3n sao k\u1ebft qu\u1ea3 x\u1eed l\u00fd, gi\u1ea3m th\u1eddi gian ph\u1ea3n h\u1ed3i cho c\u00e1c y\u00eau c\u1ea7u gi\u1ed1ng nhau sau n\u00e0y. Do \u0111\u00f3, website t\u1ea3i nhanh h\u01a1n, gi\u1ea3m th\u1eddi gian ch\u1edd c\u1ee7a ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li><strong>Gi\u1ea3m t\u1ea3i cho m\u00e1y ch\u1ee7<\/strong>: Cache gi\u1ea3m s\u1ed1 l\u01b0\u1ee3ng truy v\u1ea5n tr\u1ef1c ti\u1ebfp \u0111\u1ebfn m\u00e1y ch\u1ee7 ho\u1eb7c c\u01a1 s\u1edf d\u1eef li\u1ec7u, gi\u00fap m\u00e1y ch\u1ee7 x\u1eed l\u00fd \u0111\u01b0\u1ee3c nhi\u1ec1u y\u00eau c\u1ea7u h\u01a1n v\u1edbi t\u00e0i nguy\u00ean hi\u1ec7n c\u00f3. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch v\u1edbi c\u00e1c website c\u00f3 l\u01b0\u1ee3ng truy c\u1eadp l\u1edbn ho\u1eb7c bi\u1ebfn \u0111\u1ed9ng cao.<\/li>\n<li><strong>Ti\u1ebft ki\u1ec7m <a href=\"https:\/\/interdata.vn\/blog\/bang-thong-la-gi\/\">b\u0103ng th\u00f4ng<\/a> v\u00e0 chi ph\u00ed<\/strong>: Khi d\u1eef li\u1ec7u \u0111\u00e3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef t\u1ea1m th\u1eddi, website kh\u00f4ng c\u1ea7n ph\u1ea3i t\u1ea3i l\u1ea1i to\u00e0n b\u1ed9 n\u1ed9i dung t\u1eeb m\u00e1y ch\u1ee7 cho m\u1ed7i l\u01b0\u1ee3t truy c\u1eadp, gi\u1ea3m l\u01b0u l\u01b0\u1ee3ng truy\u1ec1n t\u1ea3i qua m\u1ea1ng, ti\u1ebft ki\u1ec7m b\u0103ng th\u00f4ng. \u0110\u00e2y l\u00e0 y\u1ebfu t\u1ed1 quan tr\u1ecdng v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung (CDN).<\/li>\n<li><strong>C\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng v\u00e0 \u1ed5n \u0111\u1ecbnh<\/strong>: Nh\u1edd caching, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 ph\u1ee5c v\u1ee5 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng l\u1edbn h\u01a1n m\u00e0 kh\u00f4ng c\u1ea7n m\u1edf r\u1ed9ng ph\u1ea7n c\u1ee9ng. Ngo\u00e0i ra, cache c\u00f3 th\u1ec3 gi\u00fap web ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh ngay c\u1ea3 khi m\u1ea1ng ho\u1eb7c m\u00e1y ch\u1ee7 g\u1eb7p s\u1ef1 c\u1ed1 nh\u1ea5t th\u1eddi.<\/li>\n<li><strong>H\u1ed7 tr\u1ee3 ho\u1ea1t \u0111\u1ed9ng offline<\/strong>: Cache tr\u00ecnh duy\u1ec7t cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp n\u1ed9i dung \u0111\u00e3 \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef tr\u01b0\u1edbc \u0111\u00f3 m\u00e0 kh\u00f4ng c\u1ea7n k\u1ebft n\u1ed1i <a href=\"https:\/\/interdata.vn\/blog\/mang-internet\/\">Internet<\/a>, n\u00e2ng cao tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng.<\/li>\n<li><strong>T\u1ed1i \u01b0u <a href=\"https:\/\/interdata.vn\/blog\/seo-la-gi\/\">SEO<\/a><\/strong>: T\u1ed1c \u0111\u1ed9 t\u1ea3i trang nhanh nh\u1edd caching l\u00e0m t\u0103ng \u0111i\u1ec3m \u0111\u00e1nh gi\u00e1 c\u1ee7a c\u00e1c c\u00f4ng c\u1ee5 t\u00ecm ki\u1ebfm, h\u1ed7 tr\u1ee3 n\u00e2ng cao th\u1ee9 h\u1ea1ng t\u00ecm ki\u1ebfm tr\u00ean Google.<\/li>\n<\/ul>\n<p>Caching l\u00e0 k\u1ef9 thu\u1eadt then ch\u1ed1t gi\u00fap t\u1ed1i \u01b0u hi\u1ec7u su\u1ea5t website v\u00e0 h\u1ec7 th\u1ed1ng, ti\u1ebft ki\u1ec7m t\u00e0i nguy\u00ean, c\u1ea3i thi\u1ec7n tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 h\u1ed7 tr\u1ee3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng l\u00e2u d\u00e0i.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Cac-phuong-phap-thuc-hien-caching\"><\/span>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c hi\u1ec7n caching<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0110\u1ec3 tri\u1ec3n khai caching, b\u1ea1n c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng nhi\u1ec1u c\u00f4ng c\u1ee5 v\u00e0 k\u1ef9 thu\u1eadt kh\u00e1c nhau, t\u00f9y thu\u1ed9c v\u00e0o m\u1ee5c ti\u00eau v\u00e0 c\u1ea5u tr\u00fac h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p caching ph\u1ed5 bi\u1ebfn m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Su-dung-bo-nho-cache-cua-trinh-duyet\"><\/span>S\u1eed d\u1ee5ng b\u1ed9 nh\u1edb cache c\u1ee7a tr\u00ecnh duy\u1ec7t<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>C\u00e1c tr\u00ecnh duy\u1ec7t web nh\u01b0 Google Chrome ho\u1eb7c Firefox \u0111\u1ec1u c\u00f3 t\u00ednh n\u0103ng l\u01b0u tr\u1eef b\u1ed9 nh\u1edb cache, cho ph\u00e9p gi\u1eef l\u1ea1i d\u1eef li\u1ec7u t\u1eeb c\u00e1c trang web \u0111\u00e3 truy c\u1eadp tr\u01b0\u1edbc \u0111\u00f3. Nh\u1edd v\u00e0o t\u00ednh n\u0103ng n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m \u0111\u00e1ng k\u1ec3 th\u1eddi gian t\u1ea3i trang v\u00e0 n\u00e2ng cao t\u1ed1c \u0111\u1ed9 truy c\u1eadp d\u1eef li\u1ec7u.<\/p>\n<figure id=\"attachment_18129\" aria-describedby=\"caption-attachment-18129\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-18129\" src=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Cac-phuong-phap-thuc-hien-caching.jpg\" alt=\"C\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c hi\u1ec7n caching\" width=\"800\" height=\"500\" title=\"\" srcset=\"https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Cac-phuong-phap-thuc-hien-caching.jpg 800w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Cac-phuong-phap-thuc-hien-caching-300x188.jpg 300w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Cac-phuong-phap-thuc-hien-caching-768x480.jpg 768w, https:\/\/interdata.vn\/blog\/wp-content\/uploads\/2024\/09\/Cac-phuong-phap-thuc-hien-caching-750x469.jpg 750w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><figcaption id=\"caption-attachment-18129\" class=\"wp-caption-text\">C\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c hi\u1ec7n caching<\/figcaption><\/figure>\n<h3><span class=\"ez-toc-section\" id=\"Tan-dung-CDN-Mang-phan-phoi-noi-dung\"><\/span>T\u1eadn d\u1ee5ng CDN (M\u1ea1ng ph\u00e2n ph\u1ed1i n\u1ed9i dung)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>CDN l\u00e0 m\u1ea1ng l\u01b0\u1edbi c\u00e1c m\u00e1y ch\u1ee7 \u0111\u01b0\u1ee3c ph\u00e2n b\u1ed1 to\u00e0n c\u1ea7u, gi\u00fap l\u01b0u tr\u1eef c\u00e1c t\u1ec7p tin t\u0129nh t\u1eeb website nh\u01b0 h\u00ecnh \u1ea3nh, video, v\u00e0 n\u1ed9i dung \u0111a ph\u01b0\u01a1ng ti\u1ec7n. Khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp trang web, c\u00e1c t\u1ec7p tin n\u00e0y \u0111\u01b0\u1ee3c ph\u1ee5c v\u1ee5 t\u1eeb m\u00e1y ch\u1ee7 CDN g\u1ea7n nh\u1ea5t, gi\u1ea3m thi\u1ec3u th\u1eddi gian t\u1ea3i trang.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ap-dung-cac-plugin-caching\"><\/span>\u00c1p d\u1ee5ng c\u00e1c plugin caching<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c trang web s\u1eed d\u1ee5ng n\u1ec1n t\u1ea3ng nh\u01b0 <a href=\"https:\/\/interdata.vn\/blog\/wordpress-la-gi\/\">WordPress<\/a>, c\u00f3 r\u1ea5t nhi\u1ec1u <a href=\"https:\/\/interdata.vn\/blog\/plugin-la-gi\/\">plugin<\/a> caching c\u00f3 s\u1eb5n \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a t\u1ed1c \u0111\u1ed9 t\u1ea3i trang. Nh\u1eefng plugin n\u00e0y gi\u00fap qu\u1ea3n l\u00fd v\u00e0 t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c l\u01b0u tr\u1eef d\u1eef li\u1ec7u trong cache m\u00e0 kh\u00f4ng c\u1ea7n can thi\u1ec7p v\u00e0o <a href=\"https:\/\/interdata.vn\/blog\/source-code-la-gi\/\">m\u00e3 ngu\u1ed3n<\/a> c\u1ee7a trang web.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Mot-so-cau-hoi-thuong-gap-ve-Caching\"><\/span>M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 Caching<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Caching-co-phai-la-mot-ky-thuat-moi-khong\"><\/span>Caching c\u00f3 ph\u1ea3i l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt m\u1edbi kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Caching kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t k\u1ef9 thu\u1eadt m\u1edbi. N\u00f3 \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1eeb l\u00e2u trong c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh v\u00e0 m\u1ea1ng \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t. Tuy nhi\u00ean, v\u1edbi s\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 v\u00e0 nhu c\u1ea7u truy xu\u1ea5t d\u1eef li\u1ec7u nhanh ch\u00f3ng, caching ng\u00e0y c\u00e0ng tr\u1edf n\u00ean ph\u1ed5 bi\u1ebfn h\u01a1n trong c\u00e1c \u1ee9ng d\u1ee5ng web v\u00e0 h\u1ea1 t\u1ea7ng hi\u1ec7n \u0111\u1ea1i.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Toi-co-the-su-dung-caching-cho-bat-ky-loai-du-lieu-nao-khong\"><\/span>T\u00f4i c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng caching cho b\u1ea5t k\u1ef3 lo\u1ea1i d\u1eef li\u1ec7u n\u00e0o kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i d\u1eef li\u1ec7u \u0111\u1ec1u n\u00ean \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong cache. Nh\u1eefng d\u1eef li\u1ec7u thay \u0111\u1ed5i th\u01b0\u1eddng xuy\u00ean ho\u1eb7c c\u00f3 t\u00ednh b\u1ea3o m\u1eadt cao c\u00f3 th\u1ec3 kh\u00f4ng ph\u00f9 h\u1ee3p \u0111\u1ec3 cache. C\u1ea7n ph\u1ea3i x\u00e1c \u0111\u1ecbnh r\u00f5 lo\u1ea1i d\u1eef li\u1ec7u n\u00e0o th\u1ef1c s\u1ef1 c\u1ea7n truy c\u1eadp nhanh v\u00e0 \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 t\u1ed1i \u01b0u h\u00f3a.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Caching-co-anh-huong-den-bao-mat-he-thong-khong\"><\/span>Caching c\u00f3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ea3o m\u1eadt h\u1ec7 th\u1ed1ng kh\u00f4ng?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Caching c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn b\u1ea3o m\u1eadt n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd \u0111\u00fang c\u00e1ch. C\u00e1c t\u1ec7p tin nh\u1ea1y c\u1ea3m ho\u1eb7c d\u1eef li\u1ec7u c\u00e1 nh\u00e2n kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong cache, \u0111\u1eb7c bi\u1ec7t l\u00e0 tr\u00ean c\u00e1c thi\u1ebft b\u1ecb d\u00f9ng chung ho\u1eb7c c\u00f4ng c\u1ed9ng. C\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt nh\u01b0 m\u00e3 h\u00f3a v\u00e0 ki\u1ec3m so\u00e1t truy c\u1eadp c\u0169ng n\u00ean \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng \u0111\u1ec3 b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u trong cache.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Co-cac-cong-cu-nao-ho-tro-Caching\"><\/span>C\u00f3 c\u00e1c c\u00f4ng c\u1ee5 n\u00e0o h\u1ed7 tr\u1ee3 Caching?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Hi\u1ec7n nay, c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3 Caching \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t l\u00e0 <a href=\"https:\/\/interdata.vn\/blog\/redis-la-gi\/\">Redis<\/a>, <a href=\"https:\/\/interdata.vn\/blog\/memcached-la-gi\/\">Memcached<\/a>, v\u00e0 Varnish \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 tham kh\u1ea3o v\u00e0 \u00e1p d\u1ee5ng v\u00e0o h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh.<\/p>\n<p>Qua b\u00e0i vi\u1ebft, hy v\u1ecdng b\u1ea1n \u0111\u00e3 hi\u1ec3u r\u00f5 <strong>caching l\u00e0 g\u00ec<\/strong> v\u00e0 t\u1ea7m quan tr\u1ecdng c\u1ee7a n\u00f3 trong vi\u1ec7c c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng. Vi\u1ec7c \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1c chi\u1ebfn l\u01b0\u1ee3c caching s\u1ebd gi\u00fap b\u1ea1n t\u1ed1i \u01b0u h\u00f3a t\u1ed1c \u0111\u1ed9 truy xu\u1ea5t d\u1eef li\u1ec7u, gi\u1ea3m t\u1ea3i cho c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 n\u00e2ng cao tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng. N\u1ebfu b\u1ea1n mu\u1ed1n t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c k\u1ef9 thu\u1eadt caching ho\u1eb7c c\u00f3 th\u1eafc m\u1eafc n\u00e0o, h\u00e3y chia s\u1ebb \u00fd ki\u1ebfn c\u1ee7a b\u1ea1n v\u1edbi <strong>InterData<\/strong> \u0111\u1ec3 c\u00f9ng th\u1ea3o lu\u1eadn th\u00eam nh\u00e9!<\/p>\n<p>InterData.vn mang \u0111\u1ebfn c\u00e1c gi\u1ea3i ph\u00e1p m\u00e1y ch\u1ee7 ch\u1ea5t l\u01b0\u1ee3ng cao nh\u01b0:\u00a0<a href=\"https:\/\/interdata.vn\/vietnam-dedicated-server\/\">thu\u00ea Server<\/a>,\u00a0<a href=\"https:\/\/interdata.vn\/cloud-server\/\">thu\u00ea Cloud Server<\/a>,\u00a0<a href=\"https:\/\/interdata.vn\/thue-vps\/\">thu\u00ea VPS<\/a>\u00a0v\u00e0\u00a0<a href=\"https:\/\/interdata.vn\/thue-hosting\/\">thu\u00ea Hosting<\/a>. V\u1edbi h\u1ea1 t\u1ea7ng ph\u1ea7n c\u1ee9ng m\u1edbi nh\u1ea5t s\u1eed d\u1ee5ng b\u1ed9 vi x\u1eed l\u00fd\u00a0<a href=\"https:\/\/interdata.vn\/blog\/cpu-amd-epyc\/\">AMD EPYC<\/a>\u00a0Gen3 c\u00f9ng NVMe U.2, \u0111\u1ea3m b\u1ea3o hi\u1ec7u su\u1ea5t v\u01b0\u1ee3t tr\u1ed9i v\u00e0 t\u1ed1c \u0111\u1ed9 truy xu\u1ea5t d\u1eef li\u1ec7u nhanh ch\u00f3ng. Kh\u00e1ch h\u00e0ng s\u1ebd \u0111\u01b0\u1ee3c tr\u1ea3i nghi\u1ec7m d\u1ecbch v\u1ee5 \u1ed5n \u0111\u1ecbnh v\u1edbi <a href=\"https:\/\/interdata.vn\/blog\/uptime-la-gi\/\">uptime<\/a> l\u00ean \u0111\u1ebfn 99.99% v\u00e0 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt 24\/7\/365.<\/p>\n<div class=\"entry-content no-share\">\n<div class=\"content-inner \">\n<p><strong>InterData<\/strong><\/p>\n<ul>\n<li><strong>Website:<\/strong>\u00a0Interdata.vn<\/li>\n<li><strong>Hotline 24\/24:<\/strong>\u00a01900-636822<\/li>\n<li><strong>Email:<\/strong>\u00a0Info@interdata.vn<\/li>\n<li><strong>VP\u0110D:<\/strong>\u00a0240 Nguy\u1ec5n \u0110\u00ecnh Ch\u00ednh, P.11. Q. Ph\u00fa Nhu\u1eadn, TP. Ho\u0302\u0300 Ch\u00ed Minh<\/li>\n<li><strong>VPGD:<\/strong>\u00a0S\u1ed1 211 \u0110\u01b0\u1eddng s\u1ed1 5, K\u0110T Lakeview City, P. An Ph\u00fa, TP. Th\u1ee7 \u0110\u1ee9c, TP. H\u1ed3 Ch\u00ed Minh<\/li>\n<\/ul>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Caching\u00a0l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong l\u0129nh v\u1ef1c c\u00f4ng ngh\u1ec7 th\u00f4ng tin, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t h\u1ec7 th\u1ed1ng. Caching l\u00e0 k\u1ef9 thu\u1eadt l\u01b0u tr\u1eef t\u1ea1m th\u1eddi d\u1eef li\u1ec7u \u0111\u1ec3 truy xu\u1ea5t nhanh h\u01a1n trong c\u00e1c l\u1ea7n truy c\u1eadp sau. Hi\u1ec3u r\u00f5 caching l\u00e0 g\u00ec s\u1ebd gi\u00fap b\u1ea1n t\u1ed1i<\/p>\n","protected":false},"author":11,"featured_media":35215,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58],"tags":[],"class_list":["post-18119","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server"],"_links":{"self":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/18119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/comments?post=18119"}],"version-history":[{"count":2,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/18119\/revisions"}],"predecessor-version":[{"id":35216,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/posts\/18119\/revisions\/35216"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media\/35215"}],"wp:attachment":[{"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/media?parent=18119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/categories?post=18119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/interdata.vn\/blog\/wp-json\/wp\/v2\/tags?post=18119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}