๐Ÿ”ฅ Observability(OpenTelemetry)์˜ ๋ฐ˜์ „ - Observability Debt(๊ธฐ์ˆ ๋ถ€์ฑ„) ํ•ด๊ฒฐ ๊ฐ€์ด๋“œ

์ตœ๊ทผ ๊ณต๊ฐœ๋œ โ€œDemystifying OpenTelemetryโ€ ๊ธฐ์‚ฌ๋Š” OpenTelemetry์— ๋Œ€ํ•œ :police_car_light:์ผ๋ฐ˜์ ์ธ ์˜คํ•ด๋ฅผ ํ•ด์†Œํ•˜๊ณ , ์กฐ์ง์ด ์ด๋ฅผ ์–ด๋–ป๊ฒŒ ๋„์ž…ยทํ™•์žฅํ•ด์•ผ ํ•˜๋Š”์ง€ ๊ตฌ์กฐ์ ์œผ๋กœ ์„ค๋ช…ํ•œ๋‹ค๋Š” ๋‚ด์šฉ์„ ๊ณต์œ ํ•ฉ๋‹ˆ๋‹ค.

:face_with_thermometer: OpenTelemetry ์˜คํ•ด๋“ค

  • OpenTelemetry๋ฅผ ์™„์ „ํ•œ ๊ด€์ธก์„ฑ ํ”Œ๋žซํผ์œผ๋กœ ์˜คํ•ด
  • ***๊ณ„์ธก/์ธก์ •(instrumentation)๊ณผ ๋ฐฑ์—”๋“œ(์ €์žฅยท๋ถ„์„ยท์•Œ๋ฆผ)***์˜ ์—ญํ•  ํ˜ผ๋™
  • โ€œ๋งŽ์€ ๋ฐ์ดํ„ฐ = ์ข‹์€ ๊ด€์ธก์„ฑโ€์ด๋ผ๋Š” ์ฐฉ๊ฐ
  • ์ ์ง„์  ๋„์ž…์ด ๊ฐ€๋Šฅํ•จ์—๋„ โ€œ์ „๋ฉด ์žฌ์ž‘์„ฑ ํ•„์š”โ€๋ผ๋Š” ์˜คํ•ด
  • ๊ธฐ์ˆ ์  ๋„์ž…์€ ํ–ˆ์ง€๋งŒ, ์กฐ์งยท๋ฌธํ™”์  ํ™œ์šฉ์€ ๋ถ€์กฑ

OpenTelemetry๋Š” :light_bulb:๋ฐ์ดํ„ฐ๋ฅผ ์ƒ์„ฑยท์ „์†กํ•˜๋Š” ๊ณ„์ธต์ด์ง€, ์ด๋ฅผ ํ™œ์šฉํ•˜๋Š” ์™„์„ฑํ˜• ์ œํ’ˆ์ด ์•„๋‹˜์„ ๊ฐ•์กฐํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. ์ฆ‰, Grafana, Splunk ๋“ฑ ๋‹ค์–‘ํ•œ ์‚ฐ์—… ๋ณด๊ณ ์„œ์—๋„ ์ด๋ฅผ Observability Debt (๊ธฐ์ˆ  ๋ถ€์ฑ„) ๋ฌธ์ œ๋กœ ์ง€์ ํ•˜๋Š” ๋ถ€๋ถ„์ž…๋‹ˆ๋‹ค.

:hammer_and_wrench: Observability Debt ํ•ด๊ฒฐ ๋ฐฉ์•ˆ

  • โ‘  OpenTelemetry์˜ ์ •ํ™•ํ•œ ์—ญํ•  ์ •์˜
    OpenTelemetry = Vendor-neutral Instrumentation Standard + Collection Framework

  • โ‘ก ์ ์ง„์  ๋„์ž… ์ „๋žต
    ํ•ต์‹ฌ ์„œ๋น„์Šค๋ถ€ํ„ฐ ๊ณ„์ธก โžพ Sampling ๋ฐ Batch ์ ์šฉ โžพ SLO ์ค‘์‹ฌ ์„ค๊ณ„ ์ •๋ ฌ โžพ Backend ์ตœ์ ํ™” ๋ฐ ๋น„์šฉ ๊ด€๋ฆฌ

  • โ‘ข ์„ค๊ณ„ ์›์น™
    โŠ™ Telemetry๋Š” SLO ์ค‘์‹ฌ์œผ๋กœ ์„ค๊ณ„
    โŠ™ Sampling ์ „๋žต ํ•„์ˆ˜ ์ ์šฉ
    โŠ™ Semantic Convention ์ค€์ˆ˜
    โŠ™ Collector ๋ฐฐ์น˜๋Š” ์›Œํฌ๋กœ๋“œ ํŠน์„ฑ ๊ธฐ๋ฐ˜ ์„ค๊ณ„
    โŠ™ ์„ฑ๋Šฅ ์˜ค๋ฒ„ํ—ค๋“œ ์ง€์† ์ธก์ •

  • โ‘ฃ ๊ธฐ์ˆ  + ๋ฌธํ™” ํ†ตํ•ฉ
    โŠ™ SLI/SLO ์ •์˜
    โŠ™ ๊ณต์œ  ๋Œ€์‹œ๋ณด๋“œ ๊ตฌ์ถ•
    โŠ™ ๊ฐœ๋ฐœ์ž ๊ต์œก
    โŠ™ Incident ๋Œ€์‘ ํ”„๋กœ์„ธ์Šค์™€ ์—ฐ๊ฒฐ
    โŠ™ Telemetry๋ฅผ ์˜์‚ฌ๊ฒฐ์ • ์ง€์› ์‹œ์Šคํ…œ์œผ๋กœ ํ™œ์šฉ

OpenTelemetry๋Š” ๊ด€์ธก์„ฑ์˜ โ€œ์™„์„ฑํ˜• ์†”๋ฃจ์…˜โ€์ด ์•„๋‹ˆ๋ผ, ๊ด€์ธก์„ฑ์„ ์„ค๊ณ„ํ•  ์ˆ˜ ์žˆ๊ฒŒ ํ•ด์ฃผ๋Š” ํ‘œ์ค€ํ™”๋œ ๊ธฐ๋ฐ˜ ์ธํ”„๋ผ:building_construction::globe_showing_europe_africa:์ด๋ฏ€๋กœ, :rocket:์‹ค์งˆ์  ๊ฐ€์น˜ ์ฐฝ์ถœ์€ ๊ณ„์ธก โ†’ ์ •์ œ โ†’ ์ €์žฅ โ†’ ๋ถ„์„ โ†’ ์˜์‚ฌ๊ฒฐ์ • ํ†ตํ•ฉ๊นŒ์ง€์˜ ์ „์ฃผ๊ธฐ ์„ค๊ณ„๊ฐ€ ์ด๋ฃจ์–ด์งˆ ๋•Œ ๋ฐœ์ƒํ•ฉ๋‹ˆ๋‹ค.

[์ถœ์ฒ˜] OpenTelemetry Project Publishes โ€œDemystifying OpenTelemetryโ€ Guide to Broaden Observability Adoption - InfoQ
[์ถœ์ฒ˜] Demystifying OpenTelemetry: Why You Shouldnโ€™t Fear Observability in Traditional Environments | OpenTelemetry

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