{"id":4429,"date":"2024-12-14T12:00:14","date_gmt":"2024-12-14T05:00:14","guid":{"rendered":"https:\/\/www.marketenterprise.vn\/blog\/?p=4429"},"modified":"2024-12-14T12:12:53","modified_gmt":"2024-12-14T05:12:53","slug":"toi-uu-hoa-aws-lambda-function","status":"publish","type":"post","link":"https:\/\/www.marketenterprise.vn\/blog\/toi-uu-hoa-aws-lambda-function.html","title":{"rendered":"AWS Lambda: Gi\u1ea3m th\u1eddi gian cold start v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t 1 c\u00e1ch v\u01b0\u1ee3t tr\u1ed9i"},"content":{"rendered":"

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N\u1ed9i dung ch\u00ednh<\/h2>\n
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  1. M\u1edf \u0111\u1ea7u<\/strong><\/li>\n
  2. C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng\u00a0<\/strong>
    \n2.1. Lifecycle
    \n2.2. C\u00e1c y\u1ebfu t\u1ed1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn cold start<\/li>\n
  3. C\u00e1ch gi\u1ea3m th\u1eddi gian cold start<\/strong>
    \n3.1. Ch\u1ecdn runtime ph\u00f9 h\u1ee3p
    \n3.2. T\u0103ng b\u1ed9 nh\u1edb
    \n3.3. S\u1eed d\u1ee5ng Layer \u0111\u1ec3 qu\u1ea3n l\u00fd dependencies
    \n3.4. Pre-warming
    \n3.5. T\u1ed1i \u01b0u h\u00f3a code
    \n3.6. Gi\u1ea3m th\u1eddi gian k\u1ebft n\u1ed1i khi d\u00f9ng VPC<\/li>\n
  4. K\u1ebft lu\u1eadn<\/strong><\/li>\n<\/ol>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

    1. M\u1edf \u0111\u1ea7u<\/b><\/h2>\n

    AWS Lambda<\/a> l\u00e0 m\u1ed9t d\u1ecbch v\u1ee5 serverless \u0111\u01b0\u1ee3c AWS cung c\u1ea5p, cho ph\u00e9p b\u1ea1n ch\u1ea1y function m\u00e0 kh\u00f4ng c\u1ea7n qu\u1ea3n l\u00fd server. V\u1edbi kh\u1ea3 n\u0103ng t\u1ef1 \u0111\u1ed9ng m\u1edf r\u1ed9ng, t\u00ednh to\u00e1n chi ph\u00ed d\u1ef1a tr\u00ean th\u1eddi gian th\u1ef1c thi, v\u00e0 t\u00edch h\u1ee3p s\u00e2u v\u1edbi c\u00e1c d\u1ecbch v\u1ee5 kh\u00e1c c\u1ee7a AWS, Lambda \u0111\u00e3 tr\u1edf th\u00e0nh l\u1ef1a ch\u1ecdn ph\u1ed5 bi\u1ebfn trong vi\u1ec7c x\u00e2y d\u1ef1ng ki\u1ebfn tr\u00fac serverless.<\/span><\/p>\n

    Tuy nhi\u00ean, m\u1eb7c d\u00f9 Lambda mang l\u1ea1i s\u1ef1 linh ho\u1ea1t v\u00e0 t\u1ed1i \u01b0u h\u00f3a chi ph\u00ed, vi\u1ec7c s\u1eed d\u1ee5ng n\u00f3 kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng ho\u00e0n h\u1ea3o. M\u1ed9t v\u1ea5n \u0111\u1ec1 th\u01b0\u1eddng g\u1eb7p v\u1edbi AWS Lambda l\u00e0 <\/span>cold start<\/span><\/i><\/a>. \u0110\u00e2y l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng x\u1ea3y ra khi Lambda c\u1ea7n th\u1eddi gian \u0111\u1ec3 kh\u1edfi t\u1ea1o m\u00f4i tr\u01b0\u1eddng th\u1ef1c thi l\u1ea7n \u0111\u1ea7u ti\u00ean(init time) ho\u1eb7c sau m\u1ed9t kho\u1ea3ng th\u1eddi gian kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng.<\/span><\/p>\n

    Cold start c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn th\u1eddi gian ph\u1ea3n h\u1ed3i l\u00e2u h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u \u0111\u1ed9 tr\u1ec5 th\u1ea5p, g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tr\u1ea3i nghi\u1ec7m ng\u01b0\u1eddi d\u00f9ng v\u00e0 hi\u1ec7u su\u1ea5t t\u1ed5ng th\u1ec3. V\u00ec v\u1eady, vi\u1ec7c t\u1ed1i \u01b0u h\u00f3a Lambda function \u0111\u1ec3 gi\u1ea3m th\u1eddi gian cold start kh\u00f4ng ch\u1ec9 gi\u00fap t\u0103ng hi\u1ec7u su\u1ea5t m\u00e0 c\u00f2n gi\u1ea3m chi ph\u00ed v\u1eadn h\u00e0nh v\u00e0 mang l\u1ea1i tr\u1ea3i nghi\u1ec7m t\u1ed1t h\u01a1n cho ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i.<\/span><\/p>\n

    B\u00e0i vi\u1ebft n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n c\u00e1ch hi\u1ec3u v\u00e0 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u qu\u1ea3 AWS Lambda function, gi\u00fap v\u01b0\u1ee3t qua c\u00e1c th\u00e1ch th\u1ee9c li\u00ean quan \u0111\u1ebfn cold start v\u00e0 t\u1eadn d\u1ee5ng t\u1ed1i \u0111a ti\u1ec1m n\u0103ng c\u1ee7a ki\u1ebfn tr\u00fac serverless.<\/span><\/p>\n

     <\/p>\n

    2. C\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Lambda<\/b><\/h2>\n

    \u0110\u1ec3 t\u1ed1i \u01b0u h\u00f3a AWS Lambda, b\u1ea1n c\u1ea7n hi\u1ec3u r\u00f5 c\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a n\u00f3, \u0111\u1eb7c bi\u1ec7t l\u00e0 v\u00f2ng \u0111\u1eddi c\u1ee7a Lambda function v\u00e0 c\u00e1c y\u1ebfu t\u1ed1 g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng <\/span>cold start<\/span><\/i>.<\/span><\/p>\n

    2.1 Lifecycle c\u1ee7a Lambda function<\/b><\/h3>\n

    \"lambda-lifecycle\"<\/p>\n

    CloudWatch log ghi l\u1ea1i v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t Lambda function<\/span><\/i><\/p>\n

    Lambda function c\u00f3 hai giai \u0111o\u1ea1n ch\u00ednh trong v\u00f2ng \u0111\u1eddi:<\/span><\/p>\n