[MSA] 6. MSA์˜ ํŠธ๋žœ์žญ์…˜ ์ด์•ผ๊ธฐ 2 - Two-Phase commit๊ณผ Saga

์ด์ „ ๊ธ€์— ์ด์–ด์„œ MSA ๋‚ด์—์„œ ํŠธ๋žœ์žญ์…˜์„ ์›ํ™œํžˆ ํ•˜๋Š” ๋ฐฉ๋ฒ• 2๊ฐ€์ง€๋ฅผ ์†Œ๊ฐœํ•ด๋“œ๋ฆฌ๊ณ ์ž ํ•ฉ๋‹ˆ๋‹ค. ๊ด€๊ณ„ํ˜• ๋ฐ์ดํ„ฐ๋ฒ ์ด์Šค์™€ ๋”๋ถˆ์–ด ๋ชจ๋†€๋ฆฌํ‹ฑ ์•„ํ‚คํ…์ฒ˜๋ฅผ ๋„์ž…ํ•œ ์„œ๋ฒ„ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์€ DB ์„œ๋ฒ„์—์„œ ์ œ๊ณตํ•˜๋Š” Commit๊ณผ Rollback์„ ์ด์šฉํ•˜์—ฌ ๋ฐ์ดํ„ฐ๋ฅผ ์ผ๊ด€์„ฑ ์žˆ๊ฒŒ ์ œ์–ดํ•  ์ˆ˜ ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ MSA์—์„œ๋Š” ๊ฐ ์„œ๋น„์Šค๋ณ„๋กœ DB ์ธ์Šคํ„ด์Šค์™€ ์• ํ”Œ๋ฆฌ์ผ€์ด์…˜์ด ๋ถ„๋ฆฌ๋จ์— ๋”ฐ๋ผ ๊ด€๊ณ„ํ˜•์œผ๋กœ ๋งบ์–ด์ง„ Entity๋“ค์€ ์„œ๋กœ๊ฐ€ ๋‹ค๋ฅธ ์ธ์Šคํ„ด์Šค๋กœ ์šด์˜๋˜๊ณ , ๊ทธ๋“ค ๋ฆฌ์†Œ์Šค๋ฅผ ๋ฐ›๊ธฐ ๋•Œ๋ฌธ์— ๋ฐ์ดํ„ฐ์˜ ์ผ๊ด€์„ฑ์ด ๋ฌด๋„ˆ์ง€๊ฒŒ ๋ฉ๋‹ˆ๋‹ค. ์ด๋ฅผ ์œ„ํ•ด ์šฐ๋ฆฌ๋Š” ๋ถ„์‚ฐ ํŠธ๋žœ์žญ์…˜ ๊ธฐ์ˆ ์„ ์ด์šฉํ•˜์—ฌ ์ด๋“ค ์ผ๊ด€์„ฑ์„ ์ง€ํ‚ฌ ์ˆ˜ ์žˆ๋Š” ๋ฐฉ๋ฒ•์ด ์žˆ์Šต๋‹ˆ๋‹ค. 1. Two-Phase Commit Two-Phase Commit์ด๋ž€, 2๋‹จ๊ณ„์— ๊ฑฐ์ณ์„œ ์˜์†ํ•˜๋Š” ์ž‘์—…์„ ๋งํ•ฉ๋‹ˆ๋‹ค. ์ด๋ ‡๊ฒŒ ๋งํ•˜๋ฉด ์•„..