๊ณ ๊ฐ€์šฉ์„ฑ 1
[Server]Cluster (MariaDB:Galera Cluster, Oracle:Real Application Cluster)

Cluster? 2๋Œ€ ์ด์ƒ์˜ ๋จธ์‹ ์ด ํ˜‘๋ ฅํ•˜์—ฌ ๋งˆ์น˜ ํ•œ ๋Œ€์˜ ๋จธ์‹ ์ด ์„œ๋น„์Šคํ•˜๋Š” ๊ฒƒ์ฒ˜๋Ÿผ ๋™์ž‘ํ•˜๋Š” ์‹œ์Šคํ…œ. Cluster๋ฅผ ๊ตฌ์„ฑํ•˜๋Š” ๊ฐ ๋จธ์‹ ์„ Node๋ผ๊ณ  ๋ถ€๋ฆ„. Node๋“ค์ด ํ‰์†Œ์— ๋ชจ๋‘ ์„œ๋น„์Šค ์ˆ˜ํ–‰์— ์ฐธ์—ฌํ•˜๋Š” ํ˜•ํƒœ์˜ ๊ตฌ์„ฑ์„ Active-Activeํ˜•ํƒœ์˜ Cluster. ํ‰์†Œ์— ์„œ๋น„์Šค๋Š” ํ•˜๋‚˜์˜ Node๊ฐ€ ์ˆ˜ํ–‰์„ ํ•˜๋˜ ํ•ด๋‹นNode์— ์žฅ์• ๊ฐ€ ๋ฐœ์ƒํ•  ๊ฒฝ์šฐ ๋Œ€๊ธฐ์ค‘์— ์žˆ๋˜ Node๋กœ ๊ต์ฒด๋˜์–ด(failover) ์„œ๋น„์Šค๊ฐ€ ์ง€์†๋˜๊ฒŒ ํ•˜๋Š” ํ˜•ํƒœ์˜ ๊ตฌ์„ฑ์„ Active-Passive ํ˜น์€ Active-Standby ํ˜•ํƒœ์˜ Cluster๋ผ๊ณ  ๋ถ€๋ฆ„. Why? ๊ณ ๊ฐ€์šฉ์„ฑ(HA:High Availability ํ˜น์€ ์ด์ค‘ํ™”)๋กœ ์ธํ•˜์—ฌ ์‚ฌ์šฉ. High Availability ํ•˜๋‚˜์˜ ๋จธ์‹ ์— ๊ณ ์žฅ์ด ๋ฐœ์ƒํ–ˆ์„ ๊ฒฝ์šฐ ์„œ๋น„์Šค๊ฐ€ ์ค‘๋‹จ๋˜์ง€ ์•Š๊ณ  ๊ณ„์†๋  ..
Database 2021.08.06
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