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20250506 AWS DynamoDB ๋…ผ๋ฌธ ๋‹จ์–ด/๋ฌธ์žฅ ์ •๋ฆฌ

Chann._.y 2025. 5. 6. 20:40
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๐Ÿ“Œ ๋‹จ์–ด ๋ฐ ๊ตฌ ํ‘œํ˜„ ์ •๋ฆฌ

  • diurnal pattern
    → ์ผ์ฃผ๊ธฐ ํŒจํ„ด, ํ•˜๋ฃจ ๋™์•ˆ ๋ฐ˜๋ณต๋˜๋Š” ๋ณ€ํ™” ์–‘์ƒ
  • e.g., The diurnal pattern of temperature shows it’s usually warmest in the afternoon.
  • incoming request rate
    → ๋“ค์–ด์˜ค๋Š” ์š”์ฒญ๋ฅ 
  • e.g., We need to monitor the incoming request rate to ensure system stability.
  • an order of magnitude
    → ์•ฝ 10๋ฐฐ ์ •๋„์˜ ์ฐจ์ด
  • e.g., The new processor is an order of magnitude faster.
  • locality pattern
    → ์ง€์—ญ์„ฑ ํŒจํ„ด (๋ฐ์ดํ„ฐ ์ ‘๊ทผ์ด ํŠน์ • ๋ฒ”์œ„์— ์ง‘์ค‘๋˜๋Š” ๊ฒฝํ–ฅ)
  • e.g., Locality patterns are important in optimizing performance.
  • an object buffer
    → ๊ฐ์ฒด ๋ฒ„ํผ (๋ฐ์ดํ„ฐ๋ฅผ ์ž„์‹œ ์ €์žฅํ•˜๋Š” ๋ฉ”๋ชจ๋ฆฌ ๊ณต๊ฐ„)
  • e.g., The engine stores assets in an object buffer for faster rendering.
  • intertwined
    → ์„œ๋กœ ์–ฝํžŒ, ๋ฐ€์ ‘ํ•˜๊ฒŒ ๊ด€๋ จ๋œ
  • e.g., Performance and consistency are often intertwined.
  • partitioning and placement
    → ๋ฐ์ดํ„ฐ ๋ถ„ํ• ๊ณผ ๋ฐฐ์น˜
  • e.g., Efficient partitioning and placement are crucial for scalability.
  • interim setup
    → ์ž„์‹œ ์„ค์ •
  • e.g., An interim setup keeps the system operational during migration.
  • by three orders of magnitude
    → ์•ฝ 1000๋ฐฐ
  • e.g., Reduced memory usage by three orders of magnitude.
  • in abstract units
    → ์ถ”์ƒ์ ์ธ ๋‹จ์œ„๋กœ
  • e.g., Measured in abstract units for relative comparison.
  • ease of archival
    → ๋ณด๊ด€์˜ ์šฉ์ด์„ฑ
  • e.g., The system supports ease of archival for compliance.

๐Ÿ“Œ ์ฃผ์š” ๋ฌธ์žฅ ํ•ด์„ ๋ฐ ์„ค๋ช…

  • "In the optimization each storage node maintains an object buffer in main memory"
    → ์ตœ์ ํ™” ๊ณผ์ •์—์„œ ๊ฐ ์ €์žฅ ๋…ธ๋“œ๋Š” ์ฃผ ๋ฉ”๋ชจ๋ฆฌ์— ๊ฐ์ฒด ๋ฒ„ํผ๋ฅผ ์œ ์ง€ํ•œ๋‹ค.
  • "This optimization has resulted in lowering the 99.9th percentile latency by a factor of 5"
    → ์ด ์ตœ์ ํ™”๋Š” 99.9% ์ง€์—ฐ ์‹œ๊ฐ„์„ 5๋ฐฐ ์ค„์˜€๋‹ค.
  • "Write buffering smoothes out higher percentile latencies"
    → ์“ฐ๊ธฐ ๋ฒ„ํผ๋ง์€ ์ƒ์œ„ ์ง€์—ฐ ์‹œ๊ฐ„์„ ์™„ํ™”ํ•ด์ค€๋‹ค.
  • "This scheme trades durability for performance"
    → ์ด ๋ฐฉ์‹์€ ๋‚ด๊ตฌ์„ฑ์„ ํฌ์ƒํ•˜๊ณ  ์„ฑ๋Šฅ์„ ์–ป๋Š”๋‹ค.
  • "The write operation is refined..."
    → ์“ฐ๊ธฐ ์—ฐ์‚ฐ์€ ํ•˜๋‚˜์˜ ๋ณต์ œ๋ณธ์—์„œ๋งŒ ๋‚ด๊ตฌ์„ฑ ์žˆ๋Š” ์“ฐ๊ธฐ๋ฅผ ์ˆ˜ํ–‰ํ•˜๋„๋ก ์กฐ์ •๋˜์—ˆ๋‹ค.
  • "Ensuring uniform load distribution"
    → ๊ท ์ผํ•œ ๋ถ€ํ•˜ ๋ถ„์‚ฐ ๋ณด์žฅ
  • "Assuming the access distribution of keys is not highly skewed"
    → ํ‚ค ์ ‘๊ทผ ๋ถ„ํฌ๊ฐ€ ๋งค์šฐ ๋ถˆ๊ท ํ˜•ํ•˜์ง€ ์•Š๋‹ค๊ณ  ๊ฐ€์ •ํ•˜๋ฉด
  • "A node is considered 'in-balance'..."
    → ์š”์ฒญ ๋ถ€ํ•˜๊ฐ€ ํ‰๊ท  ๋ถ€ํ•˜์—์„œ 15% ์ด๋‚ด์ด๋ฉด ๊ท ํ˜• ์ƒํƒœ๋กœ ๊ฐ„์ฃผ
  • "Few popular keys are accessed..."
    → ์†Œ์ˆ˜์˜ ์ธ๊ธฐ ํ‚ค๋งŒ ์ ‘๊ทผ๋  ๊ฒฝ์šฐ ๋ถ€ํ•˜ ๋ถˆ๊ท ํ˜•์ด ๋ฐœ์ƒํ•จ
  • "Implications on load distribution"
    → ๋ถ€ํ•˜ ๋ถ„์‚ฐ์— ๋ฏธ์น˜๋Š” ์˜ํ–ฅ
  • "The space needed to maintain the membership..."
    → ์‹œ์Šคํ…œ์— ๋…ธ๋“œ๊ฐ€ ๋งŽ์•„์งˆ์ˆ˜๋ก ๊ฐ ๋…ธ๋“œ์—์„œ ํ•„์š”ํ•œ ๊ณต๊ฐ„์ด ์„ ํ˜•์ ์œผ๋กœ ์ฆ๊ฐ€
  • "The nodes handing the key ranges off..."
    → ํ‚ค๋ฅผ ๋„˜๊ฒจ์ฃผ๋Š” ๋…ธ๋“œ๋Š” ๋กœ์ปฌ ์ €์žฅ์†Œ๋ฅผ ์Šค์บ”ํ•ด์•ผ ํ•จ
  • "A partition is placed on the first N unique nodes..."
    → ํŒŒํ‹ฐ์…˜์€ ํ•ด์‹ฑ ๋ง์„ ๋”ฐ๋ผ ์ฒ˜์Œ ๋งˆ์ฃผ์นœ N๊ฐœ์˜ ๋…ธ๋“œ์— ๋ฐฐ์น˜๋จ
  • "The token is used to build the function..."
    → ํ† ํฐ์€ ๋ฐฐ์น˜๋ฅผ ๊ฒฐ์ •ํ•˜๋Š” ํ•จ์ˆ˜ ๊ตฌ์„ฑ์— ์“ฐ์ด๋ฉฐ, ํŒŒํ‹ฐ์…”๋‹์—๋Š” ์‚ฌ์šฉ๋˜์ง€ ์•Š์Œ
  • "Enabling the possibility of changing the placement scheme at runtime"
    → ์‹คํ–‰ ์ค‘์—๋„ ๋ฐฐ์น˜ ๋ฐฉ์‹์„ ๋ณ€๊ฒฝํ•  ์ˆ˜ ์žˆ๊ฒŒ ํ•ด์คŒ
  • "Compared to strategy 1..."
    → ์ „๋žต 3์€ ๋” ํšจ์œจ์ ์ด๊ณ  ๋ฉค๋ฒ„์‹ญ ์ •๋ณด๋ฅผ ์•ฝ 1000๋ฐฐ ์ค„์—ฌ์คŒ

ํ•„์š”ํ•˜๋ฉด ์ด ์ •๋ฆฌ๋ฅผ ๋ธ”๋กœ๊ทธ์šฉ ๋งˆํฌ๋‹ค์šด ํŒŒ์ผ๋กœ๋„ ๋งŒ๋“ค์–ด์ค„ ์ˆ˜ ์žˆ์–ด. ์ €์žฅํ• ๊นŒ?

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