{"id":579720,"date":"2023-12-28T03:11:06","date_gmt":"2023-12-28T03:11:06","guid":{"rendered":"https:\/\/proxyelite.info\/glossary\/hadoop\/"},"modified":"2023-12-28T03:11:06","modified_gmt":"2023-12-28T03:11:06","slug":"hadoop","status":"publish","type":"glossary","link":"https:\/\/proxyelite.info\/vi\/glossary\/hadoop\/","title":{"rendered":"Hadoop"},"content":{"rendered":"

Th\u00f4ng tin t\u00f3m t\u1eaft v\u1ec1 Hadoop<\/h2>\n

Hadoop l\u00e0 m\u1ed9t khung \u0111i\u1ec7n to\u00e1n ph\u00e2n t\u00e1n, m\u00e3 ngu\u1ed3n m\u1edf \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 x\u1eed l\u00fd v\u00e0 qu\u1ea3n l\u00fd l\u01b0\u1ee3ng d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3. N\u00f3 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi Doug Cut v\u00e0 Mike Cafarella v\u00e0o n\u0103m 2005 v\u00e0 hi\u1ec7n \u0111\u01b0\u1ee3c Qu\u1ef9 ph\u1ea7n m\u1ec1m Apache duy tr\u00ec. Hadoop n\u1ed5i ti\u1ebfng v\u1edbi kh\u1ea3 n\u0103ng x\u1eed l\u00fd d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed. B\u00e0i vi\u1ebft n\u00e0y \u0111i s\u00e2u v\u00e0o s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a Hadoop, kh\u00e1m ph\u00e1 c\u00e1c t\u00ednh n\u0103ng, lo\u1ea1i, \u1ee9ng d\u1ee5ng ch\u00ednh c\u1ee7a n\u00f3 v\u00e0 m\u1ee9c \u0111\u1ed9 li\u00ean quan c\u1ee7a n\u00f3 v\u1edbi th\u1ebf gi\u1edbi m\u00e1y ch\u1ee7 proxy.<\/p>\n

Th\u00f4ng tin chi ti\u1ebft v\u1ec1 Hadoop<\/h2>\n

Hadoop l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 m\u1ea1nh m\u1ebd gi\u00fap gi\u1ea3i quy\u1ebft c\u00e1c th\u00e1ch th\u1ee9c trong vi\u1ec7c x\u1eed l\u00fd c\u00e1c t\u1eadp d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3. N\u00f3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean n\u1ec1n t\u1ea3ng c\u1ee7a hai th\u00e0nh ph\u1ea7n ch\u00ednh: H\u1ec7 th\u1ed1ng t\u1ec7p ph\u00e2n t\u00e1n Hadoop (HDFS) v\u00e0 m\u00f4 h\u00ecnh l\u1eadp tr\u00ecnh MapReduce.<\/p>\n

H\u1ec7 th\u1ed1ng t\u1ec7p ph\u00e2n t\u00e1n Hadoop (HDFS)<\/h3>\n

HDFS \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u01b0u tr\u1eef v\u00e0 qu\u1ea3n l\u00fd d\u1eef li\u1ec7u tr\u00ean m\u1ed9t c\u1ee5m ph\u1ea7n c\u1ee9ng th\u00f4ng d\u1ee5ng. N\u00f3 chia c\u00e1c t\u1ec7p l\u1edbn th\u00e0nh c\u00e1c kh\u1ed1i nh\u1ecf h\u01a1n (th\u01b0\u1eddng l\u00e0 128 MB ho\u1eb7c 256 MB) v\u00e0 sao ch\u00e9p ch\u00fang tr\u00ean nhi\u1ec1u n\u00fat trong c\u1ee5m \u0111\u1ec3 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ed7i. H\u1ec7 th\u1ed1ng l\u01b0u tr\u1eef ph\u00e2n t\u00e1n n\u00e0y \u0111\u1ea3m b\u1ea3o t\u00ednh s\u1eb5n s\u00e0ng v\u00e0 \u0111\u1ed9 tin c\u1eady cao c\u1ee7a d\u1eef li\u1ec7u.<\/p>\n

B\u1ea3n \u0111\u1ed3Gi\u1ea3m<\/h3>\n

MapReduce l\u00e0 m\u1ed9t m\u00f4 h\u00ecnh l\u1eadp tr\u00ecnh \u0111\u1ec3 x\u1eed l\u00fd v\u00e0 t\u1ea1o ra c\u00e1c b\u1ed9 d\u1eef li\u1ec7u l\u1edbn c\u00f3 kh\u1ea3 n\u0103ng song song h\u00f3a. N\u00f3 chia d\u1eef li\u1ec7u th\u00e0nh c\u00e1c ph\u1ea7n nh\u1ecf h\u01a1n v\u00e0 x\u1eed l\u00fd ch\u00fang song song tr\u00ean to\u00e0n c\u1ee5m. C\u00f4ng vi\u1ec7c MapReduce bao g\u1ed3m hai giai \u0111o\u1ea1n ch\u00ednh: giai \u0111o\u1ea1n \u201cB\u1ea3n \u0111\u1ed3\u201d, l\u1ecdc v\u00e0 s\u1eafp x\u1ebfp d\u1eef li\u1ec7u, v\u00e0 giai \u0111o\u1ea1n \u201cGi\u1ea3m\u201d, th\u1ef1c hi\u1ec7n t\u00f3m t\u1eaft v\u00e0 t\u1ed5ng h\u1ee3p.<\/p>\n

Ph\u00e2n t\u00edch c\u00e1c t\u00ednh n\u0103ng ch\u00ednh c\u1ee7a Hadoop<\/h2>\n

Hadoop cung c\u1ea5p m\u1ed9t s\u1ed1 t\u00ednh n\u0103ng ch\u00ednh khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn \u0111\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u l\u1edbn:<\/p>\n

    \n
  1. \n

    Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong>: Hadoop c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng quy m\u00f4 theo chi\u1ec1u ngang b\u1eb1ng c\u00e1ch th\u00eam nhi\u1ec1u n\u00fat h\u01a1n v\u00e0o c\u1ee5m, \u0111\u00e1p \u1ee9ng nhu c\u1ea7u d\u1eef li\u1ec7u ng\u00e0y c\u00e0ng t\u0103ng.<\/p>\n<\/li>\n

  2. \n

    Dung sai l\u1ed7i<\/strong>: HDFS sao ch\u00e9p d\u1eef li\u1ec7u tr\u00ean c\u00e1c n\u00fat, \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u v\u1eabn c\u00f3 s\u1eb5n ngay c\u1ea3 khi m\u1ed9t n\u00fat b\u1ecb l\u1ed7i.<\/p>\n<\/li>\n

  3. \n

    Hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed<\/strong>: Hadoop t\u1eadn d\u1ee5ng ph\u1ea7n c\u1ee9ng h\u00e0ng h\u00f3a, gi\u1ea3m chi ph\u00ed c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng.<\/p>\n<\/li>\n

  4. \n

    Uy\u1ec3n chuy\u1ec3n<\/strong>: N\u00f3 c\u00f3 th\u1ec3 x\u1eed l\u00fd d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac v\u00e0 kh\u00f4ng c\u1ea5u tr\u00fac, l\u00e0m cho n\u00f3 linh ho\u1ea1t v\u1edbi nhi\u1ec1u lo\u1ea1i d\u1eef li\u1ec7u kh\u00e1c nhau.<\/p>\n<\/li>\n

  5. \n

    Ti\u1ebfn tr\u00ecnh song song<\/strong>: MapReduce cho ph\u00e9p x\u1eed l\u00fd d\u1eef li\u1ec7u song song, gi\u00fap t\u00ednh to\u00e1n nhanh h\u01a1n.<\/p>\n<\/li>\n<\/ol>\n

    C\u00e1c lo\u1ea1i Hadoop<\/h2>\n

    Hadoop c\u00f3 m\u1ed9t s\u1ed1 b\u1ea3n ph\u00e2n ph\u1ed1i, m\u1ed7i b\u1ea3n ph\u00e2n ph\u1ed1i cung c\u1ea5p c\u00e1c t\u00ednh n\u0103ng v\u00e0 c\u00f4ng c\u1ee5 \u0111\u1ed9c \u0111\u00e1o. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 trong nh\u1eefng c\u00e1i ph\u1ed5 bi\u1ebfn:<\/p>\n\n\n\n\n\n\n\n\n
    Ph\u00e2n b\u1ed5<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
    Apache Hadoop<\/td>\nB\u1ea3n ph\u00e2n ph\u1ed1i Hadoop l\u00f5i ngu\u1ed3n m\u1edf.<\/td>\n<\/tr>\n
    Cloudera CDH<\/td>\nCung c\u1ea5p c\u00e1c c\u00f4ng c\u1ee5 b\u1ed5 sung \u0111\u1ec3 qu\u1ea3n l\u00fd d\u1eef li\u1ec7u.<\/td>\n<\/tr>\n
    L\u00e0m v\u01b0\u1eddn HDP<\/td>\nT\u1eadp trung v\u00e0o c\u00e1c t\u00ednh n\u0103ng v\u00e0 b\u1ea3o m\u1eadt c\u1ea5p doanh nghi\u1ec7p.<\/td>\n<\/tr>\n
    MapR<\/td>\n\u0110\u01b0\u1ee3c bi\u1ebft \u0111\u1ebfn v\u1edbi vi\u1ec7c tri\u1ec3n khai HDFS hi\u1ec7u su\u1ea5t cao.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    C\u00e1c c\u00e1ch s\u1eed d\u1ee5ng Hadoop, c\u00e1c v\u1ea5n \u0111\u1ec1 v\u00e0 gi\u1ea3i ph\u00e1p<\/h2>\n

    Hadoop t\u00ecm th\u1ea5y c\u00e1c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh kh\u00e1c nhau, bao g\u1ed3m t\u00e0i ch\u00ednh, ch\u0103m s\u00f3c s\u1ee9c kh\u1ecfe, th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, v.v. Tuy nhi\u00ean, vi\u1ec7c s\u1eed d\u1ee5ng Hadoop m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 c\u00f3 th\u1ec3 \u0111\u1eb7t ra nh\u1eefng th\u00e1ch th\u1ee9c nh\u01b0 b\u1ea3o m\u1eadt d\u1eef li\u1ec7u, qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean v\u00e0 c\u1ea5u h\u00ecnh ph\u1ee9c t\u1ea1p. C\u00e1c gi\u1ea3i ph\u00e1p bao g\u1ed3m vi\u1ec7c s\u1eed d\u1ee5ng h\u1ec7 sinh th\u00e1i Hadoop nh\u01b0 Apache Hive cho truy v\u1ea5n SQL v\u00e0 Apache Pig \u0111\u1ec3 ph\u00e2n t\u00edch d\u1eef li\u1ec7u.<\/p>\n

    \u0110\u1eb7c \u0111i\u1ec3m ch\u00ednh v\u00e0 so s\u00e1nh kh\u00e1c<\/h2>\n

    H\u00e3y so s\u00e1nh Hadoop v\u1edbi m\u1ed9t s\u1ed1 thu\u1eadt ng\u1eef t\u01b0\u01a1ng t\u1ef1:<\/p>\n\n\n\n\n\n\n\n
    Thu\u1eadt ng\u1eef<\/th>\nS\u1ef1 mi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
    tia l\u1eeda<\/td>\nCung c\u1ea5p kh\u1ea3 n\u0103ng x\u1eed l\u00fd trong b\u1ed9 nh\u1edb, ph\u00f9 h\u1ee3p cho ph\u00e2n t\u00edch th\u1eddi gian th\u1ef1c.<\/td>\n<\/tr>\n
    C\u01a1 s\u1edf d\u1eef li\u1ec7u NoSQL<\/td>\n\u0110\u01b0\u1ee3c thi\u1ebft k\u1ebf cho d\u1eef li\u1ec7u phi c\u1ea5u tr\u00fac v\u00e0 b\u00e1n c\u1ea5u tr\u00fac, trong khi Hadoop c\u00f3 th\u1ec3 x\u1eed l\u00fd c\u1ea3 d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac v\u00e0 kh\u00f4ng c\u1ea5u tr\u00fac.<\/td>\n<\/tr>\n
    Kho d\u1eef li\u1ec7u<\/td>\nT\u1eadp trung v\u00e0o l\u01b0u tr\u1eef v\u00e0 truy xu\u1ea5t d\u1eef li\u1ec7u, trong khi Hadoop thi\u00ean v\u1ec1 x\u1eed l\u00fd v\u00e0 ph\u00e2n t\u00edch.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Quan \u0111i\u1ec3m v\u00e0 c\u00f4ng ngh\u1ec7 c\u1ee7a t\u01b0\u01a1ng lai li\u00ean quan \u0111\u1ebfn Hadoop<\/h2>\n

    Hadoop ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, v\u1edbi nh\u1eefng ti\u1ebfn b\u1ed9 nh\u01b0 Hadoop 3.0 mang l\u1ea1i kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd t\u00e0i nguy\u00ean v\u00e0 kh\u1ea3 n\u0103ng ch\u1ee9a trong b\u1ed9 ch\u1ee9a \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. Ngo\u00e0i ra, vi\u1ec7c t\u00edch h\u1ee3p c\u00e1c th\u01b0 vi\u1ec7n m\u00e1y h\u1ecdc nh\u01b0 TensorFlow v\u00e0 PyTorch s\u1ebd m\u1edf ra c\u01a1 h\u1ed9i cho c\u00e1c ph\u00e2n t\u00edch n\u00e2ng cao.<\/p>\n

    C\u00e1ch s\u1eed d\u1ee5ng ho\u1eb7c li\u00ean k\u1ebft m\u00e1y ch\u1ee7 proxy v\u1edbi Hadoop<\/h2>\n

    M\u00e1y ch\u1ee7 proxy \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a c\u00e1c c\u1ee5m Hadoop. H\u1ecd c\u00f3 th\u1ec3 t\u0103ng c\u01b0\u1eddng b\u1ea3o m\u1eadt b\u1eb1ng c\u00e1ch ho\u1ea1t \u0111\u1ed9ng nh\u01b0 m\u1ed9t c\u1ed5ng, ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t b\u1eb1ng c\u00e1ch l\u01b0u v\u00e0o b\u1ed9 nh\u1edb \u0111\u1ec7m d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u th\u01b0\u1eddng xuy\u00ean. ProxyElite, v\u1edbi t\u01b0 c\u00e1ch l\u00e0 nh\u00e0 cung c\u1ea5p m\u00e1y ch\u1ee7 proxy, c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n \u0111\u1ecbnh c\u1ea5u h\u00ecnh v\u00e0 qu\u1ea3n l\u00fd m\u00e1y ch\u1ee7 proxy \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng li\u1ec1n m\u1ea1ch v\u1edbi c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng Hadoop c\u1ee7a b\u1ea1n.<\/p>\n

    Li\u00ean k\u1ebft li\u00ean quan<\/h2>\n

    \u0110\u1ec3 bi\u1ebft th\u00eam th\u00f4ng tin v\u1ec1 Hadoop, b\u1ea1n c\u00f3 th\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c t\u00e0i nguy\u00ean sau:<\/p>\n

      \n
    1. Trang web ch\u00ednh th\u1ee9c c\u1ee7a Apache Hadoop<\/a><\/li>\n
    2. T\u00e0i li\u1ec7u CDH c\u1ee7a Cloudera<\/a><\/li>\n
    3. T\u1ed5ng quan v\u1ec1 Hortonworks HDP<\/a><\/li>\n
    4. Ph\u00e2n ph\u1ed1i MapR Hadoop<\/a><\/li>\n<\/ol>\n

      T\u00f3m l\u1ea1i, Hadoop l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 quan tr\u1ecdng trong th\u1ebf gi\u1edbi d\u1eef li\u1ec7u l\u1edbn, cho ph\u00e9p c\u00e1c t\u1ed5 ch\u1ee9c x\u1eed l\u00fd v\u00e0 ph\u00e2n t\u00edch c\u00e1c t\u1eadp d\u1eef li\u1ec7u kh\u1ed5ng l\u1ed3 m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3. Khi \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi m\u00e1y ch\u1ee7 proxy, n\u00f3 c\u00f3 th\u1ec3 n\u00e2ng cao t\u00ednh b\u1ea3o m\u1eadt v\u00e0 hi\u1ec7u su\u1ea5t, khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh t\u00e0i s\u1ea3n qu\u00fd gi\u00e1 h\u01a1n n\u1eefa \u0111\u1ed1i v\u1edbi c\u00e1c doanh nghi\u1ec7p x\u1eed l\u00fd d\u1eef li\u1ec7u quy m\u00f4 l\u1edbn.<\/p>","protected":false},"featured_media":579721,"menu_order":0,"template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-579720","glossary","type-glossary","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary\/579720","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":0,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/glossary\/579720\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media\/579721"}],"wp:attachment":[{"href":"https:\/\/proxyelite.info\/vi\/wp-json\/wp\/v2\/media?parent=579720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}