{"id":6464,"date":"2023-12-11T15:47:09","date_gmt":"2023-12-11T08:47:09","guid":{"rendered":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/?p=6464"},"modified":"2023-12-11T15:47:11","modified_gmt":"2023-12-11T08:47:11","slug":"cluster-la-gi-phan-loai-va-loi-ich-cua-he-thong-cluster","status":"publish","type":"post","link":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/tu-van-nghe-nghiep\/cluster-la-gi-phan-loai-va-loi-ich-cua-he-thong-cluster","title":{"rendered":"Cluster l\u00e0 g\u00ec? Ph\u00e2n lo\u1ea1i v\u00e0 l\u1ee3i \u00edch c\u1ee7a h\u1ec7 th\u1ed1ng cluster"},"content":{"rendered":"\n

Trong th\u1ebf gi\u1edbi c\u00f4ng ngh\u1ec7, cluster l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quen thu\u1ed9c nh\u01b0ng v\u00f4 c\u00f9ng ph\u1ee9c t\u1ea1p. N\u00f3 kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c v\u00e0 s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a c\u00e1c h\u1ec7 th\u1ed1ng m\u00e0 c\u00f2n mang \u0111\u1ebfn r\u1ea5t nhi\u1ec1u l\u1ee3i \u00edch th\u00fa v\u1ecb kh\u00e1c. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 kh\u00e1i ni\u1ec7m n\u00e0y \u0111\u1ec3 xem ch\u00ednh x\u00e1c th\u00ec cluster l\u00e0 g\u00ec<\/strong> v\u00e0 nh\u1eefng \u0111i\u1ec1u tuy\u1ec7t v\u1eddi m\u00e0 h\u1ec7 th\u1ed1ng n\u00e0y \u0111em l\u1ea1i cho th\u1ebf gi\u1edbi c\u00f4ng ngh\u1ec7 ng\u00e0y nay l\u00e0 nh\u01b0 th\u1ebf n\u00e0o nh\u00e9!<\/p>\n\n\n\n

\"Cluster<\/figure>\n\n\n\n

Cluster l\u00e0 g\u00ec?<\/h2>\n\n\n\n
\n

\u201cCluster l\u00e0 m\u1ed9t c\u1ee5m g\u1ed3m nhi\u1ec1u m\u00e1y t\u00ednh (nodes) \u0111\u1ed9c l\u1eadp nh\u01b0ng k\u1ebft n\u1ed1i v\u1edbi nhau \u0111\u1ec3 l\u00e0m vi\u1ec7c c\u00f9ng nhau nh\u01b0 m\u1ed9t h\u1ec7 th\u1ed1ng duy nh\u1ea5t.\u201d<\/strong><\/strong><\/p>\n<\/blockquote>\n\n\n\n

M\u1ee5c ti\u00eau ch\u00ednh c\u1ee7a vi\u1ec7c t\u1ea1o ra m\u1ed9t cluster l\u00e0 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng. Trong cluster, c\u00e1c m\u00e1y t\u00ednh c\u00f3 kh\u1ea3 n\u0103ng giao ti\u1ebfp v\u00e0 trao \u0111\u1ed5i th\u00f4ng tin, c\u00f9ng th\u1ef1c hi\u1ec7n c\u00e1c nhi\u1ec7m v\u1ee5 \u0111\u01b0\u1ee3c giao. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u0103ng c\u01b0\u1eddng kh\u1ea3 n\u0103ng x\u1eed l\u00fd c\u00f4ng vi\u1ec7c v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u1ebfu m\u1ed9t m\u00e1y t\u00ednh g\u1eb7p s\u1ef1 c\u1ed1, c\u00f4ng vi\u1ec7c c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c chuy\u1ec3n sang m\u00e1y t\u00ednh kh\u00e1c trong cluster. Qu\u00e1 tr\u00ecnh n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201cfail-over\u201d.<\/p>\n\n\n\n

 So v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng m\u1ed9t m\u00e1y ch\u1ee7 c\u1ea5u h\u00ecnh cao, h\u1ec7 th\u1ed1ng cluster mang l\u1ea1i hi\u1ec7u qu\u1ea3 t\u01b0\u01a1ng t\u1ef1 nh\u01b0ng ti\u1ebft ki\u1ec7m chi ph\u00ed h\u01a1n nhi\u1ec1u do kh\u00f4ng y\u00eau c\u1ea7u ph\u1ea7n c\u1ee9ng t\u1ed1t nh\u1ea5t hay c\u00e1c c\u00f4ng ngh\u1ec7 ph\u1ee9c t\u1ea1p.<\/p>\n\n\n\n

Cluster th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u s\u1ef1 li\u00ean t\u1ee5c v\u00e0 t\u00ednh s\u1eb5n s\u00e0ng cao nh\u01b0 m\u00e1y ch\u1ee7 web, c\u01a1 s\u1edf d\u1eef li\u1ec7u v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng doanh nghi\u1ec7p. Vi\u1ec7c qu\u1ea3n l\u00fd cluster v\u00e0 \u0111\u1ea3m b\u1ea3o t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a n\u00f3 \u0111\u00f2i h\u1ecfi s\u1ef1 hi\u1ec3u bi\u1ebft k\u1ef9 thu\u1eadt cao v\u00e0 c\u00e1c gi\u1ea3i ph\u00e1p ph\u1ea7n m\u1ec1m ph\u1ee9c t\u1ea1p.<\/p>\n\n\n\n

Nh\u1eefng th\u00e0nh ph\u1ea7n c\u1ee7a cluster service<\/h2>\n\n\n\n

Cluster Manager<\/h3>\n\n\n\n

\u0110\u00e2y <\/strong>\u0111\u01b0\u1ee3c xem l\u00e0 tr\u00e1i tim c\u1ee7a h\u1ec7 th\u1ed1ng cluster. Cluster Manager l\u00e0 n\u01a1i t\u1ea5t c\u1ea3 c\u00e1c s\u1ef1 ki\u1ec7n di\u1ec5n ra. N\u00f3 qu\u1ea3n l\u00fd v\u00e0 gi\u00e1m s\u00e1t c\u00e1c node trong cluster, ph\u00e2n ph\u1ed1i t\u00e0i nguy\u00ean v\u00e0 \u0111i\u1ec1u khi\u1ec3n to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng, \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c v\u00e0 s\u1eb5n s\u00e0ng.<\/p>\n\n\n\n

Node<\/h3>\n\n\n\n

Node l\u00e0 c\u00e1c m\u00e1y t\u00ednh c\u00e1 th\u1ec3 trong cluster, ch\u00fang k\u1ebft h\u1ee3p l\u1ea1i v\u1edbi nhau \u0111\u1ec3 l\u00e0m vi\u1ec7c nh\u01b0 m\u1ed9t \u0111\u01a1n v\u1ecb \u0111\u1ed3ng nh\u1ea5t. M\u1ed7i node \u0111\u00f3ng vai tr\u00f2 nh\u01b0 m\u1ed9t m\u00e1y ch\u1ee7 \u0111\u1ed9c l\u1eadp v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng th\u1ef1c hi\u1ec7n t\u00e1c v\u1ee5 \u0111\u01a1n gi\u1ea3n l\u1eabn ph\u1ee9c t\u1ea1p khi l\u00e0m vi\u1ec7c c\u00f9ng nhau.<\/p>\n\n\n\n

Resource<\/h3>\n\n\n\n

C\u00e1c t\u00e0i nguy\u00ean nh\u01b0 \u1ed5 c\u1ee9ng, b\u1ed9 nh\u1edb, CPU, ph\u1ea7n m\u1ec1m \u1ee9ng d\u1ee5ng v\u00e0 d\u1ecbch v\u1ee5 m\u1ea1ng \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong cluster. Ch\u00fang c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia s\u1ebb gi\u1eefa c\u00e1c node \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

Cluster database<\/h3>\n\n\n\n

\u0110\u00e2y l\u00e0 c\u01a1 s\u1edf d\u1eef li\u1ec7u quan tr\u1ecdng cho h\u1ec7 th\u1ed1ng cluster. N\u00f3 ch\u1ee9a th\u00f4ng tin v\u1ec1 c\u1ea5u h\u00ecnh, tr\u1ea1ng th\u00e1i c\u1ee7a cluster, c\u0169ng nh\u01b0 qu\u1ea3n l\u00fd v\u00e0 \u0111i\u1ec1u khi\u1ec3n to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n

Network<\/h3>\n\n\n\n

M\u1ea1ng l\u00e0 m\u1ed9t ph\u1ea7n quan tr\u1ecdng \u0111\u1ea3m b\u1ea3o k\u1ebft n\u1ed1i gi\u1eefa c\u00e1c node v\u00e0 ph\u1ea7n m\u1ec1m \u0111i\u1ec1u khi\u1ec3n. M\u1ea1ng n\u00e0y chuy\u1ec3n d\u1eef li\u1ec7u v\u00e0 t\u00e0i nguy\u00ean gi\u1eefa c\u00e1c node trong cluster \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 hi\u1ec7u su\u1ea5t c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

C\u00e1c th\u00e0nh ph\u1ea7n n\u00e0y c\u00f9ng ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t b\u1ed9 m\u00e1y ho\u00e0n ch\u1ec9nh, \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c v\u00e0 \u0111\u1ed9 tin c\u1eady c\u1ee7a h\u1ec7 th\u1ed1ng cluster. T\u1eeb qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean \u0111\u1ebfn qu\u1ea3n l\u00fd tr\u1ea1ng th\u00e1i, ch\u00fang \u0111\u00f3ng vai tr\u00f2 quy\u1ebft \u0111\u1ecbnh trong vi\u1ec7c t\u1ea1o ra m\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c ho\u00e0n h\u1ea3o cho nhi\u1ec1u \u1ee9ng d\u1ee5ng v\u00e0 d\u1ecbch v\u1ee5 c\u00f4ng ngh\u1ec7.<\/p>\n\n\n\n

Ph\u00e2n lo\u1ea1i cluster<\/h2>\n\n\n\n

Kh\u00f4ng ch\u1ec9 n\u1eafm \u0111\u01b0\u1ee3c kh\u00e1i ni\u1ec7m cluster l\u00e0 g\u00ec <\/strong>v\u00e0 nh\u1eefng th\u00e0nh ph\u1ea7n c\u1ea5u th\u00e0nh n\u00ean cluster service, b\u1ea1n n\u00ean t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c lo\u1ea1i cluster ph\u1ed5 bi\u1ebfn hi\u1ec7n nay.<\/p>\n\n\n\n

M\u1ed7i lo\u1ea1i cluster c\u00f3 nh\u1eefng \u1ee9ng d\u1ee5ng v\u00e0 m\u1ee5c ti\u00eau ri\u00eang nh\u01b0ng ch\u00fang \u0111\u1ec1u mang \u0111\u1ebfn kh\u1ea3 n\u0103ng \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c v\u00e0 s\u1eb5n s\u00e0ng cho h\u1ec7 th\u1ed1ng m\u1ea1ng m\u00e1y t\u00ednh. C\u00e1ch c\u00e1c lo\u1ea1i cluster k\u1ebft n\u1ed1i, qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean v\u00e0 \u0111\u1ed1i ph\u00f3 v\u1edbi s\u1ef1 c\u1ed1 \u00edt nhi\u1ec1u c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t, g\u00f3p ph\u1ea7n t\u1ea1o n\u00ean s\u1ef1 \u0111a d\u1ea1ng v\u00e0 linh ho\u1ea1t trong vi\u1ec7c tri\u1ec3n khai cluster theo nhu c\u1ea7u v\u00e0 y\u00eau c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a t\u1ed5 ch\u1ee9c.<\/p>\n\n\n\n

Single quorum device cluster (Standard quorum cluster)<\/h3>\n\n\n\n

\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng lo\u1ea1i cluster ph\u1ed5 bi\u1ebfn v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng nh\u1ea5t. Lo\u1ea1i n\u00e0y bao g\u1ed3m nhi\u1ec1u node c\u00f9ng ho\u1ea1t \u0111\u1ed9ng v\u00e0 k\u1ebft n\u1ed1i qua m\u1ed9t ho\u1eb7c nhi\u1ec1u thi\u1ebft b\u1ecb l\u01b0u tr\u1eef c\u1ee5m (cluster storage) th\u00f4ng qua m\u1ed9t k\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201cbus\u201d. Cluster n\u00e0y s\u1eed d\u1ee5ng quorum \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 li\u00ean t\u1ee5c.<\/p>\n\n\n\n

Majority node set cluster<\/h3>\n\n\n\n

Lo\u1ea1i n\u00e0y c\u0169ng g\u1ed3m nhi\u1ec1u node, m\u1ed7i node qu\u1ea3n l\u00fd b\u1ea3n sao d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c c\u1ea5u h\u00ecnh trong ch\u00ednh node c\u1ee7a m\u00ecnh. T\u00ednh li\u00ean t\u1ee5c c\u1ee7a d\u1eef li\u1ec7u gi\u1eefa c\u00e1c node \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o b\u1edfi ch\u00ednh ch\u00fang. Majority node set cluster th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi c\u1ea7n ph\u00e2n t\u00e1n c\u00e1c server cluster v\u1ec1 m\u1eb7t \u0111\u1ecba l\u00fd \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i.<\/p>\n\n\n\n

Local quorum cluster (single node cluster)<\/h3>\n\n\n\n

Lo\u1ea1i n\u00e0y \u0111\u01a1n gi\u1ea3n ch\u1ec9 bao g\u1ed3m m\u1ed9t node duy nh\u1ea5t. Th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho c\u00e1c m\u1ee5c \u0111\u00edch th\u1eed nghi\u1ec7m ho\u1eb7c khi c\u1ea7n hi\u1ec7u su\u1ea5t cao cho m\u1ed9t node \u0111\u01a1n.<\/p>\n\n\n\n

Nh\u1eefng l\u1ee3i \u00edch c\u1ee7a h\u1ec7 th\u1ed1ng cluster<\/h2>\n\n\n\n

H\u1ec7 th\u1ed1ng cluster l\u00e0 m\u1ed9t c\u00f4ng ngh\u1ec7 ph\u1ee9c t\u1ea1p v\u00e0 m\u1ea1nh m\u1ebd. Do \u0111\u00f3, vi\u1ec7c \u1ee9ng d\u1ee5ng h\u1ec7 th\u1ed1ng n\u00e0y xu\u1ea5t ph\u00e1t t\u1eeb nh\u1eefng l\u1ee3i \u00edch quan tr\u1ecdng m\u00e0 n\u00f3 mang l\u1ea1i. H\u00e3y c\u00f9ng t\u00ecm hi\u1ec3u \u01b0u \u0111i\u1ec3m c\u1ee7a cluster l\u00e0 g\u00ec nh\u00e9.<\/p>\n\n\n\n

T\u00ednh s\u1eb5n s\u00e0ng cao<\/h3>\n\n\n\n

Cluster l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p gi\u00fap \u0111\u1ea3m b\u1ea3o r\u1eb1ng h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng m\u1ed9t c\u00e1ch li\u00ean t\u1ee5c, b\u1ea5t ch\u1ea5p c\u00e1c l\u1ed7i ph\u00e1t sinh. Khi m\u1ed9t node trong cluster g\u1eb7p l\u1ed7i ho\u1eb7c c\u1ea7n b\u1ea3o tr\u00ec, c\u00f4ng vi\u1ec7c s\u1ebd \u0111\u01b0\u1ee3c t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c chuy\u1ec3n giao sang c\u00e1c node kh\u00e1c. \u0110i\u1ec1u n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 kh\u1ea3 n\u0103ng ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

D\u1ec5 m\u1edf r\u1ed9ng<\/h3>\n\n\n\n

C\u1ea5u tr\u00fac cluster cho ph\u00e9p b\u1ed5 sung c\u00e1c node m\u1edbi v\u00e0o h\u1ec7 th\u1ed1ng m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. \u0110i\u1ec1u n\u00e0y gi\u00fap t\u0103ng kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a h\u1ec7 th\u1ed1ng. B\u00ean c\u1ea1nh \u0111\u00f3, cluster c\u0169ng lo\u1ea1i b\u1ecf c\u00e1c node g\u1eb7p l\u1ed7i m\u00e0 kh\u00f4ng g\u00e2y gi\u00e1n \u0111o\u1ea1n \u0111\u1ebfn to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n

D\u1ec5 qu\u1ea3n l\u00fd<\/h3>\n\n\n\n

C\u00e1c n\u1ec1n t\u1ea3ng cluster cung c\u1ea5p c\u00f4ng c\u1ee5 qu\u1ea3n l\u00fd m\u1ea1nh m\u1ebd gi\u00fap qu\u1ea3n tr\u1ecb vi\u00ean theo d\u00f5i v\u00e0 qu\u1ea3n l\u00fd to\u00e0n b\u1ed9 cluster m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. Ch\u00fang cho ph\u00e9p di chuy\u1ec3n \u1ee9ng d\u1ee5ng gi\u1eefa c\u00e1c server kh\u00e1c nhau trong cluster, th\u1ef1c hi\u1ec7n k\u1ebf ho\u1ea1ch b\u1ea3o tr\u00ec v\u00e0 gi\u00e1m s\u00e1t tr\u1ea1ng th\u00e1i c\u1ee7a cluster c\u0169ng nh\u01b0 t\u00e0i nguy\u00ean t\u1eeb b\u1ea5t k\u1ef3 \u0111\u00e2u trong m\u1ea1ng.<\/p>\n\n\n\n

Hi\u1ec7u su\u1ea5t cao so v\u1edbi chi ph\u00ed \u0111\u1ea7u t\u01b0<\/h3>\n\n\n\n

Cluster mang l\u1ea1i hi\u1ec7u su\u1ea5t cao h\u01a1n r\u1ea5t nhi\u1ec1u so v\u1edbi s\u1ed1 ti\u1ec1n b\u1ea1n ph\u1ea3i b\u1ecf ra \u0111\u1ec3 \u0111\u1ea7u t\u01b0 h\u1ec7 th\u1ed1ng n\u00e0y. V\u1edbi c\u00f9ng m\u1ed9t ngu\u1ed3n v\u1ed1n, m\u1ed9t h\u1ec7 th\u1ed1ng cluster c\u00f3 th\u1ec3 cung c\u1ea5p s\u1ee9c m\u1ea1nh t\u00ednh to\u00e1n l\u1edbn h\u01a1n so v\u1edbi m\u1ed9t server \u0111\u01a1n l\u1ebb c\u00f3 c\u1ea5u h\u00ecnh cao.<\/p>\n\n\n\n

N\u00f3i t\u00f3m l\u1ea1i, h\u1ec7 th\u1ed1ng cluster l\u00e0 g\u00ec<\/strong>? \u0110\u00f3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 tuy\u1ec7t v\u1eddi trong th\u1ebf gi\u1edbi s\u1ed1 h\u00f3a ng\u00e0y nay v\u00e0 cung c\u1ea5p nhi\u1ec1u l\u1ee3i \u00edch quan tr\u1ecdng \u0111\u1ed1i v\u1edbi doanh nghi\u1ec7p. Cluster kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng m\u00e0 c\u00f2n gi\u00fap t\u1ed1i \u01b0u h\u00f3a vi\u1ec7c qu\u1ea3n l\u00fd v\u00e0 m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng. \u0110i\u1ec1u n\u00e0y gi\u00fap doanh nghi\u1ec7p ti\u1ebft ki\u1ec7m chi ph\u00ed v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng h\u1ec7 th\u1ed1ng lu\u00f4n ho\u1ea1t \u0111\u1ed9ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. <\/p>\n\n\n\n

Trang \u0110o\u00e0n<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Trong th\u1ebf gi\u1edbi c\u00f4ng ngh\u1ec7, cluster l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m quen thu\u1ed9c nh\u01b0ng v\u00f4 c\u00f9ng ph\u1ee9c t\u1ea1p. N\u00f3 kh\u00f4ng ch\u1ec9 \u0111\u1ea3m b\u1ea3o t\u00ednh li\u00ean t\u1ee5c …<\/p>\n","protected":false},"author":58,"featured_media":6469,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17],"tags":[],"class_list":["post-6464","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tu-van-nghe-nghiep"],"_links":{"self":[{"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/posts\/6464","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/users\/58"}],"replies":[{"embeddable":true,"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/comments?post=6464"}],"version-history":[{"count":1,"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/posts\/6464\/revisions"}],"predecessor-version":[{"id":6470,"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/posts\/6464\/revisions\/6470"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/media\/6469"}],"wp:attachment":[{"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/media?parent=6464"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/categories?post=6464"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mb668s.com\/cam-nang-7mb66-xoc-dia\/wp-json\/wp\/v2\/tags?post=6464"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}