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[AWS Solution Architect] DynamoDB

DynamoDB

  • Introduction
  • Table Structure
  • Consistent Reads โญ๏ธ
  • DynamoDB Cheat Sheet

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  • โญ๏ธ โญ๏ธ โญ๏ธ Screen Shot 2022-01-24 at 3 00 19 PM

    • ์—ฌ๋Ÿฌ ๋ฆฌ์ „์˜, ํ…Œ์ด๋ธ” ๊ฐ„, ๋น„๋™๊ธฐ ๋ณต์ œ : ์—ฌ๋Ÿฌ region์˜ table์„ ์„œ๋กœ ๋™๊ธฐํ™”์‹œํ‚ฌ ์ˆ˜ ์žˆ์Œ (๋น„๋™๊ธฐ๋กœ)

Screen Shot 2022-01-24 at 3 03 07 PM from AWS (01/24/2022)

  • Reading / Writing ์šฉ๋Ÿ‰์„ ๊ฐ๊ฐ ๋ˆ์„ ์ฃผ๊ณ  ๊ตฌ์ž…ํ•จ
    • ์š”๊ตฌ ์‚ฌํ•ญ์— ๋”ฐ๋ผ ์šฉ๋Ÿ‰์„ ๊ฐ๊ฐ provisionํ•ด์„œ ์‚ฌ์šฉ ๊ฐ€๋Šฅ
  • 1๋ฒˆ ์‹œ์  : ๋ฐ์ดํ„ฐ๊ฐ€ ์ €์žฅ๋จ
  • 2๋ฒˆ ์‹œ์  : ๋ฐ์ดํ„ฐ ๋ชฉ๋ก์ด ๋‚˜์˜ค๋Š” ์‹œ์ 
    • Eventually consistent read (default) : 1๋ฒˆ ์‹œ์ , 2๋ฒˆ ์‹œ์ ์ด 1์ดˆ์ •๋„ ๋Šฆ๊ฒŒ ๋™๊ธฐํ™”๋จ, ๋” ์ €๋ ดํ•จ
      • use case : ์‹ฑํฌ๊ฐ€ ์ค‘์š”ํ•˜์ง€ ์•Š์€ ๊ฒฝ์šฐ ์ถฉ๋ถ„ํžˆ ์ž˜ ์‚ฌ์šฉ ๊ฐ€๋Šฅ
    • Strongly consistent read : 1๋ฒˆ ์‹œ์ , 2๋ฒˆ ์‹œ์ ์ด ๊ฑฐ์˜ ๋น„์Šท
      • use case : ์€ํ–‰! ์€ํ–‰๊ฐ„ ๊ฑฐ๋ž˜์—์„œ ๋ฌผ๊ฑด๊ฐ’ ๊ฒฐ์ œ ๋“ฑ ์ž”๊ณ ์— ๋Œ€ํ•ด์„œ ์‚ฌ์šฉ
        • eventually consistent read๋ฅผ ์‚ฌ์šฉํ•˜๋ฉด 2๋ฒˆ ์ด์ƒ์˜ transaction์„ ๋ฐœ์ƒ์‹œํ‚ฌ์ˆ˜๋„ ์žˆ์–ด์„œ ๋‘๋ฒˆ ๋ˆ์ด ๋‚˜๊ฐˆ ์ˆ˜ ์žˆ์Œ

Screen Shot 2022-01-24 at 3 06 22 PM Screen Shot 2022-01-24 at 3 06 44 PM from AWS (01/24/2022)

  • Key point : Unrelational database
  • Answer : D
    • Redshift : rds -> X
    • RDS -> X
    • Glacier -> no database

Screen Shot 2022-01-24 at 3 07 56 PM from AWS (01/24/2022)


Reference

AWS Certified Solutions Architect - Associate 2020 (PASS THE EXAM!), Youtube, uploaded by freeCodeCamp.org, 12/24/2019, https://www.youtube.com/watch?v=Ia-UEYYR44s

This post is licensed under CC BY 4.0 by the author.

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