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  • book
    • 2022
      • ์‚ถ์˜ ๊ฒฉ
      • The programmer's Brain
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      • IT ๊ฐœ๋ฐœ์ž์˜ ์˜์–ด ํ•„์‚ด๊ธฐ
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      • ๋‚˜๋ฅผ ๋‚˜๋‹ต๊ฒŒ ๋งŒ๋“œ๋Š” ๊ฒƒ๋“ค
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      • ์‹ค๋ฆฌ์ฝ˜๋ฐธ๋ฆฌ์˜ ์‹คํ—˜์‹ค
      • ์œก๊ฐํ˜•-๊ฐœ๋ฐœ์ž
      • ์ž๋ฐ” ์ตœ์ ํ™”
      • ํŒŒ์ด๋ธŒ-๋ผ์ธ์Šค-์˜ค๋ธŒ-์ฝ”๋“œ
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    • 2024
      • ๊ฒฐ์ •์ -์ˆœ๊ฐ„์˜-๋Œ€ํ™”
      • ์ฐธ๊ณ 
      • ๋†“์•„ ๋ฒ„๋ฆผ : ๋‚ด ์•ˆ์˜ ์œ„๋Œ€ํ•จ์„ ๋˜์ฐพ๋Š” ํ•ญ๋ณต์˜ ๊ธฐ์ˆ 
      • ๋ฐ์ดํ„ฐ-์ค‘์‹ฌ-์–ดํ”Œ๋ฆฌ์ผ€์ด์…˜-์„ค๊ณ„
        • 01์žฅ
          • SLO
          • failure
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        • 02์žฅ
          • Cypher
          • MapReduce
          • NoSQL
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          • ๊ด€๊ณ„ํ˜• ๋ชจ๋ธ
      • ๋งํ•˜์ง€-์•Š์œผ๋ฉด-์ธ์ƒ์€-๋ฐ”๋€Œ์ง€-์•Š๋Š”๋‹ค
      • ๋น„์ƒ์‹์ -์„ฑ๊ณต-๋ฒ•์น™
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      • ์‹คํŒจ๋Š”-๋‚˜์นจํŒ์ด๋‹ค
      • ์–ด๋ฅธ์˜-๊ตญ์–ด๋ ฅ
      • ์™œ ์ผํ•˜๋Š”๊ฐ€, ์ง€๊ธˆ ๋‹น์‹ ์ด ๊ฐ€์žฅ ๋œจ๊ฒ๊ฒŒ ๋ฌผ์–ด์•ผ ํ•  ์ฒซ ๋ฒˆ์งธ ์งˆ๋ฌธ
      • ์šฐ๋ฆฌ๋Š” ๋ชจ๋‘ ์ฃฝ๋Š”๋‹ค๋Š” ๊ฒƒ์„ ๊ธฐ์–ตํ•˜๋ผ
      • ์œ„๋Œ€ํ•œ ์‚ฌ์ƒ๊ฐ€ ์ผ€๋นˆ ์ผˆ๋ฆฌ์˜ ํ˜„์‹ค์ ์ธ ์ธ์ƒ ์กฐ์–ธ
      • ์œ ์‹œ๋ฏผ์˜ ๊ธ€์“ฐ๊ธฐ ํŠน๊ฐ•
      • ์€์œ ์˜-๊ธ€์“ฐ๊ธฐ-์ƒ๋‹ด์†Œ
    • 2025
      • ๋‚˜๋Š”-AI์™€-๊ณต๋ถ€ํ•œ๋‹ค
      • ๋‚ด-์ฝ”๋“œ๊ฐ€-๊ทธ๋ ‡๊ฒŒ-์ด์ƒํ•œ๊ฐ€์š”?
        • 1. ์ž˜๋ชป๋œ ๊ตฌ์กฐ์˜ ๋ฌธ์ œ ๊นจ๋‹ซ๊ธฐ
        • 2. ์„ค๊ณ„ ์ฒซ๊ฑธ์Œ
        • 3. ํด๋ž˜์Šค ์„ค๊ณ„ - ๋ชจ๋“  ๊ฒƒ๊ณผ ์—ฐ๊ฒฐ๋˜๋Š” ์„ค๊ณ„ ๊ธฐ๋ฐ˜
        • 4. ๋ถˆ๋ณ€ ํ™œ์šฉํ•˜๊ธฐ - ์•ˆ์ •์ ์œผ๋กœ ๋™์ž‘ํ•˜๊ฒŒ ๋งŒ๋“ค๊ธฐ
        • 5. ์‘์ง‘๋„ - ํฉ์–ด์ ธ ์žˆ๋Š” ๊ฒƒ๋“ค
        • 1๋ถ€-๋™์ž‘ํ•˜๋Š”-๋„๋ฉ”์ธ-๋ชจ๋ธ-๋งŒ๋“ค๊ธฐ
        • 2๋ถ€-๋ชจ๋ธ-์ฃผ๋„-์„ค๊ณ„์˜-๊ธฐ๋ณธ-์š”์†Œ
        • 3๋ถ€-๋”-์‹ฌ์ธต์ ์ธ-ํ†ต์ฐฐ๋ ฅ์„-ํ–ฅํ•œ-๋ฆฌํŒฉํ„ฐ๋ง
      • ๋‚ด-์ฝ”๋“œ๊ฐ€-๊ทธ๋ ‡๊ฒŒ-์ด์ƒํ•œ๊ฐ€์š”?
        • README.md
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  1. book
  2. 2024
  3. ๋ฐ์ดํ„ฐ-์ค‘์‹ฌ-์–ดํ”Œ๋ฆฌ์ผ€์ด์…˜-์„ค๊ณ„
  4. 02์žฅ

MapReduce

  • ๋งต๋ฆฌ๋“€์Šค

  • ๋งŽ์€ ์ปดํ“จํ„ฐ์—์„œ ๋Œ€๋Ÿ‰์˜ ๋ฐ์ดํ„ฐ๋ฅผ ์ฒ˜๋ฆฌํ•˜๊ธฐ ์œ„ํ•œ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ๋ชจ๋ธ

  • ์—ฌ๋Ÿฌ ํ•จ์ˆ˜ ํ”„๋กœ๊ทธ๋ž˜๋ฐ ์–ธ์–ด์— ์žˆ๋Š” map (collect) ์™€ reduce (fold or inject) ํ•จ์ˆ˜๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ํ•จ.

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Last updated 6 months ago

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