{"id":2628,"date":"2026-10-21T13:02:07","date_gmt":"2026-10-21T13:02:07","guid":{"rendered":"https:\/\/wayhope.kro.kr\/?p=2628"},"modified":"2026-10-21T13:02:07","modified_gmt":"2026-10-21T13:02:07","slug":"%ec%ba%90%ec%8b%b1-%ed%8c%a8%ed%84%b4%ec%9d%98-%ec%a2%85%eb%a5%98%ec%99%80-%eb%8f%99%ec%9e%91-%ec%9b%90%eb%a6%ac-node-js-redis-mysql","status":"publish","type":"post","link":"https:\/\/wayhope.kro.kr\/?p=2628","title":{"rendered":"\uce90\uc2f1 \ud328\ud134\uc758 \uc885\ub958\uc640 \ub3d9\uc791 \uc6d0\ub9ac #Node.js #Redis #MySQL"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\uce90\uc2f1\uc740 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uc870\ud68c \ubd80\ud558\ub97c \uc904\uc774\uace0 \uc751\ub2f5 \uc18d\ub3c4\ub97c \uac1c\uc120\ud558\uae30 \uc704\ud574 \uc790\uc8fc \uc0ac\uc6a9\ud558\ub294 \uae30\uc220\uc774\ub2e4. \ud558\uc9c0\ub9cc \uce90\uc2dc\ub97c \ub3c4\uc785\ud558\ub294 \uac83\ub9cc\uc73c\ub85c \uc131\ub2a5\uacfc \ub370\uc774\ud130 \uc77c\uad00\uc131\uc774 \ubaa8\ub450 \ud574\uacb0\ub418\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uce90\uc2dc\ub97c \ub204\uac00 \uc870\ud68c\ud558\ub294\uc9c0, \ub370\uc774\ud130\ub97c \uc218\uc815\ud560 \ub54c \uc5b4\ub290 \uc800\uc7a5\uc18c\ub97c \uba3c\uc800 \uac31\uc2e0\ud558\ub294\uc9c0, DB \uc800\uc7a5\uc774 \uc9c0\uc5f0\ub418\uac70\ub098 \uc2e4\ud328\ud558\uba74 \uc5b4\ub5bb\uac8c \ubcf5\uad6c\ud558\ub294\uc9c0\uc5d0 \ub530\ub77c \uc2dc\uc2a4\ud15c\uc758 \ub3d9\uc791\uc740 \ub2ec\ub77c\uc9c4\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub7ec\ud55c \uc124\uacc4 \ubc29\uc2dd\uc740 \uce90\uc2f1 \ud328\ud134(Cache Pattern)\uc73c\ub85c \uad6c\ubd84\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub300\ud45c\uc801\uc778 \uce90\uc2f1 \ud328\ud134\uc5d0\ub294 Cache-Aside, Read-Through, Write-Through, Write-Behind, Write-Around, Refresh-Ahead\uac00 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ubc88 \ud3ec\uc2a4\ud2b8\uc5d0\uc11c\ub294 Node.js\uc640 TypeScript \ud658\uacbd\uc5d0\uc11c Redis\uc640 MySQL\uc744 \uc0ac\uc6a9\ud574 \uac01 \ud328\ud134\uc758 \ub3d9\uc791 \uc6d0\ub9ac\uc640 \uad6c\ud604 \ubc29\ubc95\uc744 \uc0b4\ud3b4\ubcf8\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uce90\uc2f1 \ud328\ud134\uc744 \uc774\ud574\ud558\uae30 \uc704\ud55c \uae30\ubcf8 \uad6c\uc870<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uba3c\uc800 \uac01 \uc800\uc7a5\uc18c\uc758 \uc5ed\ud560\uc744 \uc815\uc758\ud55c\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>MySQL<\/strong>: \uc601\uad6c\uc801\uc73c\ub85c \ubcf4\uc874\ud574\uc57c \ud558\ub294 \uae30\uc900 \ub370\uc774\ud130\ub97c \uad00\ub9ac\ud55c\ub2e4.<\/li>\n\n\n\n<li><strong>Redis<\/strong>: \uc790\uc8fc \uc870\ud68c\ud558\ub294 \ub370\uc774\ud130\ub97c \uba54\ubaa8\ub9ac\uc5d0 \uce90\uc2f1\ud55c\ub2e4.<\/li>\n\n\n\n<li><strong>Application Service<\/strong>: \ube44\uc988\ub2c8\uc2a4 \ub85c\uc9c1\uacfc \ub370\uc774\ud130 \ucc98\ub9ac \ud750\ub984\uc744 \uc870\uc728\ud55c\ub2e4.<\/li>\n\n\n\n<li><strong>Repository<\/strong>: \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc870\ud68c \ubc0f \uc218\uc815 \uc791\uc5c5\uc744 \ucd94\uc0c1\ud654\ud55c\ub2e4.<\/li>\n\n\n\n<li><strong>Worker<\/strong>: \ube44\ub3d9\uae30 \uc791\uc5c5\uc774\ub098 \ubc31\uadf8\ub77c\uc6b4\ub4dc \uce90\uc2dc \uac31\uc2e0\uc744 \uc218\ud589\ud55c\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ubc88 \uc608\uc81c\uc5d0\uc11c\ub294 \ud50c\ub808\uc774\uc5b4 \uc815\ubcf4\ub97c \uae30\uc900\uc73c\ub85c \uc124\uba85\ud55c\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>type Player = {\n  id: string;\n  nickname: string;\n  points: number;\n};<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">MySQL\uc5d0\ub294 \ud50c\ub808\uc774\uc5b4\uc758 \uc2e4\uc81c \ub370\uc774\ud130\uac00 \uc800\uc7a5\ub418\uace0 Redis\uc5d0\ub294 \ud574\ub2f9 \ub370\uc774\ud130\ub97c \uc9c1\ub82c\ud654\ud55c \uce90\uc2dc\uac00 \uc800\uc7a5\ub41c\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>MySQL\nplayer-001\nnickname = \"Wayhope\"\npoints = 100\n\nRedis\nplayer:player-001\n{\n  \"id\": \"player-001\",\n  \"nickname\": \"Wayhope\",\n  \"points\": 100\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5ec\uae30\uc11c \uc911\uc694\ud55c \uc810\uc740 Redis\uc5d0 \uc800\uc7a5\ub41c \ub370\uc774\ud130\uac00 MySQL\uc758 \ubcf5\uc0ac\ubcf8\uc774\ub77c\ub294 \uac83\uc774\ub2e4. \uc774\ubc88 \ud3ec\uc2a4\ud2b8\uc5d0\uc11c\ub294 MySQL\uc744 \uae30\uc900 \ub370\uc774\ud130 \uc800\uc7a5\uc18c(Source of Truth)\ub85c \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e8, \ubaa8\ub4e0 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \ubc18\ub4dc\uc2dc MySQL\uc774 \uae30\uc900 \uc800\uc7a5\uc18c\uc5ec\uc57c \ud558\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4. \ub370\uc774\ud130\uc758 \ud2b9\uc131\uacfc \uc2dc\uc2a4\ud15c \uc694\uad6c\uc0ac\ud56d\uc5d0 \ub530\ub77c Redis\ub97c \uae30\uc900 \uc800\uc7a5\uc18c\ub85c \uc124\uacc4\ud560 \uc218\ub3c4 \uc788\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Cache-Aside<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Cache-Aside\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uc9c1\uc811 \uce90\uc2dc\ub97c \uc870\ud68c\ud558\uace0 \uad00\ub9ac\ud558\ub294 \ud328\ud134\uc774\ub2e4. \uc77c\ubc18\uc801\uc778 \uc6f9 \uc11c\ube44\uc2a4\uc640 \uac8c\uc784 \uc11c\ubc84\uc5d0\uc11c \uc801\uc6a9\ud558\uae30 \uc26c\uc6b4 \ubc29\uc2dd\uc774\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub3d9\uc791 \uc6d0\ub9ac<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>\ud074\ub77c\uc774\uc5b8\ud2b8 \uc694\uccad\n      |\n      v\nApplication Service\n      |\n      v\nRedis \uce90\uc2dc \uc870\ud68c\n      |\n      +---- Cache Hit ----&gt; \ub370\uc774\ud130 \ubc18\ud658\n      |\n      +---- Cache Miss\n                |\n                v\n           MySQL \uc870\ud68c\n                |\n                v\n           Redis \uc800\uc7a5\n                |\n                v\n            \ub370\uc774\ud130 \ubc18\ud658<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\uc5d0 \ub370\uc774\ud130\uac00 \uc874\uc7ac\ud558\uba74 \ud574\ub2f9 \uac12\uc744 \uc989\uc2dc \ubc18\ud658\ud55c\ub2e4. \ub370\uc774\ud130\uac00 \uc5c6\ub2e4\uba74 MySQL\uc5d0\uc11c \uc870\ud68c\ud55c \ub4a4 Redis\uc5d0 \uc800\uc7a5\ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc870\ud68c \uad6c\ud604<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>async function getPlayer(\n  id: string\n): Promise&lt;Player | null&gt; {\n  const key = `player:${id}`;\n\n  \/\/ Redis \uce90\uc2dc \uc870\ud68c\n  const cached = await redis.get(key);\n\n  if (cached !== null) {\n    return JSON.parse(cached) as Player;\n  }\n\n  \/\/ Cache Miss: MySQL \uc870\ud68c\n  const player = await repository.findById(id);\n\n  if (player === null) {\n    return null;\n  }\n\n  \/\/ Redis \uce90\uc2dc \uc0dd\uc131\n  await redis.set(\n    key,\n    JSON.stringify(player),\n    \"EX\",\n    300\n  );\n\n  return player;\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>EX 300<\/code>\uc740 \uce90\uc2dc\uc758 \uc720\ud6a8 \uc2dc\uac04\uc744 300\ucd08\ub85c \uc124\uc815\ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucd5c\ucd08 \uc870\ud68c\uc5d0\uc11c\ub294 MySQL\uc744 \uc0ac\uc6a9\ud558\uc9c0\ub9cc \uc774\ud6c4 \uc694\uccad\uc5d0\uc11c\ub294 Redis\ub97c \uc774\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc218\uc815 \uad6c\ud604<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>async function updatePlayer(\n  player: Player\n): Promise&lt;void&gt; {\n  \/\/ DB \uc800\uc7a5\n  await repository.save(player);\n\n  \/\/ \uae30\uc874 \uce90\uc2dc \ubb34\ud6a8\ud654\n  await redis.del(`player:${player.id}`);\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ub370\uc774\ud130\ub97c \uc218\uc815\ud560 \ub54c\ub294 MySQL\uc5d0 \uba3c\uc800 \ubc18\uc601\ud558\uace0 Redis\uc758 \uae30\uc874 \uce90\uc2dc\ub97c \uc0ad\uc81c\ud55c\ub2e4. \ub2e4\uc74c \uc870\ud68c\uc5d0\uc11c \ucd5c\uc2e0 \ub370\uc774\ud130\ub97c \ub2e4\uc2dc \uce90\uc2f1\ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc7a5\uc810\uacfc \ub2e8\uc810<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc7a5\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uce90\uc2dc \ub300\uc0c1\uacfc \uc815\ucc45\uc744 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc790\uc720\ub86d\uac8c \uc81c\uc5b4\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>Redis\uac00 \ube44\uc5b4 \uc788\uc5b4\ub3c4 MySQL\uc744 \ud1b5\ud574 \ub370\uc774\ud130\ub97c \uc870\ud68c\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uad6c\ud604\uc774 \ub2e8\uc21c\ud558\uace0 \uc801\uc6a9 \ubc94\uc704\uac00 \ub113\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ub2e8\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uce90\uc2dc \uc870\ud68c, \uc0dd\uc131, \ubb34\ud6a8\ud654\ub97c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc9c1\uc811 \uad00\ub9ac\ud574\uc57c \ud55c\ub2e4.<\/li>\n\n\n\n<li>\uce90\uc2dc \uc0ad\uc81c \uc2e4\ud328 \uc2dc \uc624\ub798\ub41c \ub370\uc774\ud130\uac00 \ub0a8\uc744 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\ub3d9\uc2dc \uc694\uccad\uc73c\ub85c \ub3d9\uc77c\ud55c \ub370\uc774\ud130\uac00 \uc5ec\ub7ec \ubc88 \uc870\ud68c\ub420 \uc218 \uc788\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc801\ud569\ud55c \uc0c1\ud669:<\/strong> \ud50c\ub808\uc774\uc5b4 \ud504\ub85c\ud544, \uac8c\uc784 \uc124\uc815, \uc0c1\ud488 \uc815\ubcf4\ucc98\ub7fc \uc870\ud68c \ube48\ub3c4\uac00 \ub192\uace0 \uce90\uc2dc \ub300\uc0c1 \uc120\ud0dd\uc774 \uc911\uc694\ud55c \ub370\uc774\ud130.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Read-Through<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Read-Through\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uce90\uc2dc \uacc4\uce35\uc5d0 \uc870\ud68c\ub97c \uc694\uccad\ud558\uace0, \uce90\uc2dc \uacc4\uce35\uc774 Cache Miss \ubc1c\uc0dd \uc2dc DB \uc870\ud68c\uc640 \uce90\uc2dc \uc0dd\uc131\uc744 \ub2f4\ub2f9\ud558\ub294 \ud328\ud134\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cache-Aside\uc640\uc758 \ud575\uc2ec\uc801\uc778 \ucc28\uc774\ub294 DB \uc870\ud68c \ucc45\uc784\uc774 \uc5b4\ub514\uc5d0 \uc788\ub294\uac00\uc774\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub3d9\uc791 \uc6d0\ub9ac<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Application\n     |\n     v\nCache Layer\n     |\n     +---- Cache Hit ----&gt; \ub370\uc774\ud130 \ubc18\ud658\n     |\n     +---- Cache Miss\n               |\n               v\n          MySQL \uc870\ud68c\n               |\n               v\n          Redis \uc800\uc7a5\n               |\n               v\n           \ub370\uc774\ud130 \ubc18\ud658<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc740 \uce90\uc2dc \uacc4\uce35\uc758 <code>get()<\/code> \uba54\uc11c\ub4dc\ub9cc \ud638\ucd9c\ud558\uba74 \ub41c\ub2e4. \uce90\uc2dc \uacc4\uce35\uc774 \ub0b4\ubd80\uc801\uc73c\ub85c DB \uc870\ud68c\uc640 \uce90\uc2dc \uc801\uc7ac\ub97c \ucc98\ub9ac\ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uad6c\ud604<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>class ReadThrough {\n  constructor(\n    private readonly redis: Redis,\n    private readonly repository: PlayerRepository\n  ) {}\n\n  async get(id: string): Promise&lt;Player | null&gt; {\n    const key = `player:${id}`;\n\n    const cached = await this.redis.get(key);\n\n    if (cached !== null) {\n      return JSON.parse(cached) as Player;\n    }\n\n    const player = await this.repository.findById(id);\n\n    if (player === null) {\n      return null;\n    }\n\n    await this.redis.set(\n      key,\n      JSON.stringify(player),\n      \"EX\",\n      300\n    );\n\n    return player;\n  }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \ud638\ucd9c\ud55c\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const player = await readThrough.get(\"player-001\");<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\uc7a5\uc810\uacfc \ub2e8\uc810<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc7a5\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc870\ud68c \ucf54\ub4dc\uac00 \ub2e8\uc21c\ud574\uc9c4\ub2e4.<\/li>\n\n\n\n<li>\uce90\uc2dc \ubbf8\uc2a4 \ucc98\ub9ac \uc815\ucc45\uc744 \ud558\ub098\uc758 \uacc4\uce35\uc5d0 \ubaa8\uc744 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc5ec\ub7ec \uc11c\ube44\uc2a4\uc5d0\uc11c \uce90\uc2dc \uc815\ucc45\uc744 \uc7ac\uc0ac\uc6a9\ud558\uae30 \uc27d\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ub2e8\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uce90\uc2dc \uacc4\uce35\uc5d0\uc11c DB \uc811\uadfc\uc744 \uc218\ud589\ud560 \uc218 \uc788\ub3c4\ub85d \uad6c\ud604\ud574\uc57c \ud55c\ub2e4.<\/li>\n\n\n\n<li>\uce90\uc2dc \uacc4\uce35\uc758 \uc7a5\uc560 \ucc98\ub9ac\uc640 \uc7ac\uc2dc\ub3c4 \uc815\ucc45\uc774 \ud544\uc694\ud558\ub2e4.<\/li>\n\n\n\n<li>\ub370\uc774\ud130 \uc218\uc815 \uc2dc \uce90\uc2dc \uac31\uc2e0 \uc804\ub7b5\uc740 \ubcc4\ub3c4\ub85c \uc124\uacc4\ud574\uc57c \ud55c\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc801\ud569\ud55c \uc0c1\ud669:<\/strong> \uce90\uc2dc \ucd94\uc0c1\ud654 \uacc4\uce35\uc744 \ub450\uace0 \uc5ec\ub7ec \uc11c\ube44\uc2a4\uc758 \uc870\ud68c \uc815\ucc45\uc744 \ud1b5\uc77c\ud558\ub824\ub294 \uacbd\uc6b0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis \uc790\uccb4\uac00 MySQL\uc744 \uc790\ub3d9\uc73c\ub85c \uc870\ud68c\ud558\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc778 Node.js\uc640 Redis \uc870\ud569\uc5d0\uc11c\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ub0b4\ubd80\uc5d0 Read-Through \uacc4\uce35\uc744 \uad6c\ud604\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Write-Through<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Write-Through\ub294 \uce90\uc2dc \uacc4\uce35\uc744 \ud1b5\ud574 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\uace0, \uce90\uc2dc \uacc4\uce35\uc774 DB\uc640 \uce90\uc2dc\ub97c \ud568\uaed8 \uac31\uc2e0\ud558\ub294 \ud328\ud134\uc774\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub3d9\uc791 \uc6d0\ub9ac<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Application\n     |\n     v\nCache Layer\n     |\n     +----&gt; MySQL \uac31\uc2e0\n     |\n     +----&gt; Redis \uac31\uc2e0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc815\uc0c1\uc801\uc73c\ub85c \ub450 \uc791\uc5c5\uc774 \uc644\ub8cc\ub418\uba74 \ub2e4\uc74c \uc870\ud68c\uc5d0\uc11c \ucd5c\uc2e0 \uce90\uc2dc\ub97c \ubc18\ud658\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uad6c\ud604<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>class WriteThrough {\n  constructor(\n    private readonly redis: Redis,\n    private readonly repository: PlayerRepository\n  ) {}\n\n  async update(player: Player): Promise&lt;void&gt; {\n    \/\/ MySQL \uba3c\uc800 \uc218\uc815\n    await this.repository.save(player);\n\n    \/\/ Redis \uce90\uc2dc \uac31\uc2e0\n    await this.redis.set(\n      `player:${player.id}`,\n      JSON.stringify(player),\n      \"EX\",\n      300\n    );\n  }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uc608\uc81c\uc5d0\uc11c\ub294 DB \uc800\uc7a5 \ud6c4 \uce90\uc2dc\ub97c \uac31\uc2e0\ud55c\ub2e4. \ub450 \uc791\uc5c5\uc758 \uc21c\uc11c\ub294 \uc2dc\uc2a4\ud15c\uc758 \uc77c\uad00\uc131 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ub530\ub77c \uc124\uacc4\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc7a5\uc810\uacfc \ub2e8\uc810<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc7a5\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc815\uc0c1 \ucc98\ub9ac \uc2dc \uc4f0\uae30 \uc774\ud6c4\uc5d0\ub3c4 \ucd5c\uc2e0 \uce90\uc2dc\ub97c \uc720\uc9c0\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\ub2e4\uc74c \uc870\ud68c\uc5d0\uc11c Cache Miss\uac00 \ubc1c\uc0dd\ud560 \uac00\ub2a5\uc131\uc744 \uc904\uc77c \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc77d\uae30\uc640 \uc4f0\uae30\uac00 \ubaa8\ub450 \ube48\ubc88\ud55c \ub370\uc774\ud130\uc5d0\uc11c \uc720\uc6a9\ud558\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ub2e8\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uce90\uc2dc\uc640 DB\ub97c \uac31\uc2e0\ud558\ub294 \ube44\uc6a9\uc774 \uc4f0\uae30 \uc694\uccad\uc5d0 \ucd94\uac00\ub41c\ub2e4.<\/li>\n\n\n\n<li>DB \uc800\uc7a5 \uc131\uacf5 \ud6c4 Redis \uac31\uc2e0\uc774 \uc2e4\ud328\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\ub450 \uc800\uc7a5\uc18c\uc758 \ubcc0\uacbd\uc744 \ud558\ub098\uc758 \uc6d0\uc790\uc801 \ud2b8\ub79c\uc7ad\uc158\uc73c\ub85c \ucc98\ub9ac\ud560 \uc218 \uc5c6\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc801\ud569\ud55c \uc0c1\ud669:<\/strong> \ub370\uc774\ud130 \uc218\uc815 \uc9c1\ud6c4 \ud574\ub2f9 \ub370\uc774\ud130\ub97c \uc790\uc8fc \uc870\ud68c\ud558\uace0, \uce90\uc2dc\ub97c \ucd5c\uc2e0 \uc0c1\ud0dc\ub85c \uc720\uc9c0\ud560 \ud544\uc694\uac00 \uc788\ub294 \uacbd\uc6b0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Write-Through\ub77c\ub294 \uc774\ub984\ub9cc\uc73c\ub85c \uac15\ud55c \uc77c\uad00\uc131\uc774 \ubcf4\uc7a5\ub418\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4. \uce90\uc2dc \uac31\uc2e0 \uc2e4\ud328\uc5d0 \ub300\ube44\ud55c \uc7ac\uc2dc\ub3c4\ub098 \ubb34\ud6a8\ud654 \uc804\ub7b5\uc774 \ud544\uc694\ud558\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Write-Behind (Write-Back)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Write-Behind\ub294 \uce90\uc2dc\uc5d0 \ubcc0\uacbd \uc0ac\ud56d\uc744 \uba3c\uc800 \ubc18\uc601\ud558\uace0, DB \uc800\uc7a5\uc744 \ube44\ub3d9\uae30\ub85c \uc218\ud589\ud558\ub294 \ud328\ud134\uc774\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub3d9\uc791 \uc6d0\ub9ac<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Application\n     |\n     v\nRedis \uac31\uc2e0\n     |\n     +----&gt; \ube60\ub978 \uc751\ub2f5\n     |\n     v\n\ube44\ub3d9\uae30 \uc791\uc5c5 \ud050\n     |\n     v\nWorker\n     |\n     v\nMySQL \uc800\uc7a5<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">DB \uc800\uc7a5\uc744 \uc694\uccad\uc758 \ub3d9\uae30 \ucc98\ub9ac \uacbd\ub85c\uc5d0\uc11c \ubd84\ub9ac\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \uc4f0\uae30 \uc751\ub2f5 \uc2dc\uac04\uc744 \uc904\uc774\ub294 \ub370 \uc720\ub9ac\ud558\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uad6c\ud604<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc544\ub798 \ucf54\ub4dc\ub294 Redis\uc5d0 \uce90\uc2dc\ub97c \uac31\uc2e0\ud558\uace0 \ubcc4\ub3c4\uc758 \ud050\uc5d0 DB \uc800\uc7a5 \uc791\uc5c5\uc744 \ub4f1\ub85d\ud558\ub294 \uac1c\ub150\uc801\uc778 \uc608\uc81c\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>class WriteBehind {\n  constructor(\n    private readonly redis: Redis,\n    private readonly repository: PlayerRepository\n  ) {}\n\n  async update(player: Player): Promise&lt;void&gt; {\n    const serialized = JSON.stringify(player);\n\n    \/\/ \uce90\uc2dc \uac31\uc2e0\n    await this.redis.set(\n      `player:${player.id}`,\n      serialized\n    );\n\n    \/\/ \ube44\ub3d9\uae30 \uc800\uc7a5 \uc791\uc5c5 \ub4f1\ub85d\n    await this.redis.rpush(\n      \"player:write-queue\",\n      serialized\n    );\n  }\n\n  async processNext(): Promise&lt;boolean&gt; {\n    const serialized = await this.redis.lpop(\n      \"player:write-queue\"\n    );\n\n    if (serialized === null) {\n      return false;\n    }\n\n    const player = JSON.parse(serialized) as Player;\n\n    await this.repository.save(player);\n\n    return true;\n  }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>processNext()<\/code>\ub294 \ubcc4\ub3c4 Worker\uc5d0\uc11c \ud638\ucd9c\ud558\ub3c4\ub85d \uad6c\uc131\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\ub9cc \uc774 \uad6c\ud604\uc740 \ud559\uc2b5\uc6a9\uc774\ub2e4. <code>LPOP<\/code>\uc73c\ub85c \uc791\uc5c5\uc744 \uc81c\uac70\ud55c \uc9c1\ud6c4 Worker\uac00 \uc885\ub8cc\ub418\uba74 DB\uc5d0 \uc800\uc7a5\ub418\uc9c0 \uc54a\uc740 \uc791\uc5c5\uc774 \uc720\uc2e4\ub420 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc6b4\uc601 \ud658\uacbd\uc5d0\uc11c\ub294 \ucc98\ub9ac \uc644\ub8cc \uc804\uae4c\uc9c0 \uc791\uc5c5\uc744 \ubcf4\uc874\ud558\ub294 \ud050, \ud655\uc778 \uc751\ub2f5, \uc7ac\uc2dc\ub3c4, \uc911\ubcf5 \ucc98\ub9ac \ubc29\uc9c0, \ub370\uc774\ud130 \ubcc0\uacbd \uc21c\uc11c \ubcf4\uc7a5 \ub4f1\uc774 \ud544\uc694\ud558\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc7a5\uc810\uacfc \ub2e8\uc810<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc7a5\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DB \uc800\uc7a5\uc744 \uc9c0\uc5f0\uc2dc\ucf1c \uc694\uccad \uc751\ub2f5 \uc2dc\uac04\uc744 \uc904\uc77c \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc5ec\ub7ec \ubcc0\uacbd \uc0ac\ud56d\uc744 \ubaa8\uc544 \uc77c\uad04 \uc800\uc7a5\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc4f0\uae30 \ube48\ub3c4\uac00 \ub192\uc740 \uc2dc\uc2a4\ud15c\uc5d0\uc11c DB \ubd80\ud558\ub97c \uc904\uc77c \uc218 \uc788\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ub2e8\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DB \ubc18\uc601 \uc804\uc5d0 \uc7a5\uc560\uac00 \ubc1c\uc0dd\ud558\uba74 \ub370\uc774\ud130\uac00 \uc720\uc2e4\ub420 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>Redis\uc640 DB\uc758 \ub370\uc774\ud130\uac00 \uc77c\uc2dc\uc801\uc73c\ub85c \ubd88\uc77c\uce58\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc7ac\uc2dc\ub3c4, \uc21c\uc11c \ubcf4\uc7a5, \ubcf5\uad6c \uc124\uacc4\uac00 \ubcf5\uc7a1\ud558\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc801\ud569\ud55c \uc0c1\ud669:<\/strong> \uc77c\uc2dc\uc801\uc778 \uac8c\uc784 \uc0c1\ud0dc\ucc98\ub7fc \ubcc0\uacbd \ube48\ub3c4\uac00 \ub192\uace0, \uc800\uc7a5 \uc9c0\uc5f0\uc744 \ud5c8\uc6a9\ud560 \uc218 \uc788\ub294 \ub370\uc774\ud130.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud3ec\uc778\ud2b8, \uad6c\ub9e4 \uae30\ub85d, \ubcf4\uc0c1 \uc9c0\uae09\ucc98\ub7fc \uc720\uc2e4\ub418\uba74 \uc548 \ub418\ub294 \ub370\uc774\ud130\uc5d0\ub294 \ub2e8\uc21c\ud55c Write-Behind\ub97c \uc801\uc6a9\ud558\uc9c0 \uc54a\ub294 \uac83\uc774 \uc88b\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Write-Around<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Write-Around\ub294 \uc4f0\uae30 \uc694\uccad\uc744 \uce90\uc2dc \uacc4\uce35\uc5d0\uc11c \ucc98\ub9ac\ud558\uc9c0 \uc54a\uace0 DB\uc5d0 \uc9c1\uc811 \uae30\ub85d\ud558\ub294 \ud328\ud134\uc774\ub2e4. \uae30\uc874 \uce90\uc2dc\uac00 \uc788\ub2e4\uba74 \ubb34\ud6a8\ud654\ud558\uace0 \ub2e4\uc74c \uc870\ud68c\uc5d0\uc11c \uce90\uc2dc\ub97c \uc0dd\uc131\ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub3d9\uc791 \uc6d0\ub9ac<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Application\n     |\n     v\nMySQL \uc800\uc7a5\n     |\n     v\nRedis \uce90\uc2dc \uc0ad\uc81c\n     |\n     v\n\ub2e4\uc74c \uc870\ud68c\uc5d0\uc11c \uce90\uc2dc \uc0dd\uc131<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\uad6c\ud604<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>class WriteAround {\n  constructor(\n    private readonly redis: Redis,\n    private readonly repository: PlayerRepository\n  ) {}\n\n  async update(player: Player): Promise&lt;void&gt; {\n    \/\/ DB\uc5d0 \uc9c1\uc811 \uc800\uc7a5\n    await this.repository.save(player);\n\n    \/\/ \uae30\uc874 \uce90\uc2dc \ubb34\ud6a8\ud654\n    await this.redis.del(`player:${player.id}`);\n  }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uad6c\uc870\uc5d0\uc11c\ub294 \uc218\uc815 \uc2dc Redis\uc5d0 \uc0c8 \ub370\uc774\ud130\ub97c \uae30\ub85d\ud558\uc9c0 \uc54a\ub294\ub2e4. \ub530\ub77c\uc11c \uc218\uc815\ud55c \ub370\uc774\ud130\uac00 \uace7\ubc14\ub85c \ub2e4\uc2dc \uc870\ud68c\ub418\uc9c0 \uc54a\ub294 \uc0c1\ud669\uc5d0\uc11c \uce90\uc2dc \uac31\uc2e0 \ube44\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc7a5\uc810\uacfc \ub2e8\uc810<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc7a5\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ubd88\ud544\uc694\ud55c \uce90\uc2dc \uac31\uc2e0\uc744 \uc904\uc77c \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>DB\ub97c \uae30\uc900 \ub370\uc774\ud130 \uc800\uc7a5\uc18c\ub85c \uc720\uc9c0\ud558\uae30 \uc27d\ub2e4.<\/li>\n\n\n\n<li>\uc4f0\uae30 \uc774\ud6c4 \uc870\ud68c \ube48\ub3c4\uac00 \ub0ae\uc740 \ub370\uc774\ud130\uc5d0 \uc720\ub9ac\ud558\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ub2e8\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc4f0\uae30 \uc9c1\ud6c4 \uc870\ud68c\uc5d0\uc11c Cache Miss\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uce90\uc2dc \ubb34\ud6a8\ud654 \uc2e4\ud328 \uc2dc \uc624\ub798\ub41c \ub370\uc774\ud130\uac00 \ub0a8\uc744 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\ubc18\ubcf5\uc801\uc778 \uc4f0\uae30\uc640 \uc77d\uae30\uac00 \ub3d9\uc2dc\uc5d0 \ubc1c\uc0dd\ud558\uba74 \uce90\uc2dc \uc7ac\uc0dd\uc131 \ube44\uc6a9\uc774 \uc99d\uac00\ud560 \uc218 \uc788\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc801\ud569\ud55c \uc0c1\ud669:<\/strong> \uac8c\uc2dc\uae00, \uc0c1\ud488 \uc815\ubcf4\ucc98\ub7fc \uc4f0\uae30 \uc791\uc5c5\uc774 \ubc1c\uc0dd\ud558\ub354\ub77c\ub3c4 \ud574\ub2f9 \ub370\uc774\ud130\uac00 \uc989\uc2dc \ub2e4\uc2dc \uc870\ud68c\ub418\uc9c0 \uc54a\uc744 \uc218 \uc788\ub294 \uacbd\uc6b0.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Write-Around\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uc4f0\uae30\ub9cc \uce90\uc2dc\ub97c \uc6b0\ud68c\ud558\ub294 \uc804\ub7b5\uc774\ub2e4. \uc77d\uae30\uc5d0\uc11c\ub294 Cache-Aside\ucc98\ub7fc \uce90\uc2dc\ub97c \ud65c\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Refresh-Ahead<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Refresh-Ahead\ub294 \uce90\uc2dc\uac00 \ub9cc\ub8cc\ub418\uae30 \uc804\uc5d0 \ub370\uc774\ud130\ub97c \ubbf8\ub9ac \uac31\uc2e0\ud558\ub294 \ud328\ud134\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uce90\uc2dc \ub9cc\ub8cc \uc774\ud6c4 \uccab \uc694\uccad\uc774 DB \uc870\ud68c\ub97c \uae30\ub2e4\ub9ac\ub294 \uc0c1\ud669\uc744 \uc904\uc774\uae30 \uc704\ud574 \uc0ac\uc6a9\ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub3d9\uc791 \uc6d0\ub9ac<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Redis \uce90\uc2dc \uc870\ud68c\n      |\n      v\n\uce90\uc2dc \ub370\uc774\ud130 \uc874\uc7ac\n      |\n      v\nTTL \ud655\uc778\n      |\n      +---- \ub9cc\ub8cc\uae4c\uc9c0 \uc5ec\uc720 \uc788\uc74c\n      |          |\n      |          v\n      |       \uce90\uc2dc \ubc18\ud658\n      |\n      +---- \ub9cc\ub8cc \uc784\ubc15\n                 |\n                 +---- \uae30\uc874 \uce90\uc2dc \ubc18\ud658\n                 |\n                 +---- \ubc31\uadf8\ub77c\uc6b4\ub4dc \uac31\uc2e0\n                              |\n                              v\n                         MySQL \uc870\ud68c\n                              |\n                              v\n                         Redis \uac31\uc2e0<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\uad6c\ud604<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>class RefreshAhead {\n  private readonly ttlSeconds = 300;\n  private readonly refreshThresholdSeconds = 60;\n\n  constructor(\n    private readonly redis: Redis,\n    private readonly repository: PlayerRepository\n  ) {}\n\n  async get(id: string): Promise&lt;Player | null&gt; {\n    const key = `player:${id}`;\n\n    const cached = await this.redis.get(key);\n\n    if (cached === null) {\n      return this.loadAndCache(id);\n    }\n\n    const ttl = await this.redis.ttl(key);\n\n    if (\n      ttl &gt;= 0 &amp;&amp;\n      ttl &lt;= this.refreshThresholdSeconds\n    ) {\n      void this.refreshInBackground(id);\n    }\n\n    \/\/ \uac31\uc2e0 \uc644\ub8cc\ub97c \uae30\ub2e4\ub9ac\uc9c0 \uc54a\uace0 \uae30\uc874 \uce90\uc2dc \ubc18\ud658\n    return JSON.parse(cached) as Player;\n  }\n\n  private async loadAndCache(\n    id: string\n  ): Promise&lt;Player | null&gt; {\n    const player = await this.repository.findById(id);\n\n    if (player === null) {\n      return null;\n    }\n\n    await this.redis.set(\n      `player:${id}`,\n      JSON.stringify(player),\n      \"EX\",\n      this.ttlSeconds\n    );\n\n    return player;\n  }\n\n  private async refreshInBackground(\n    id: string\n  ): Promise&lt;void&gt; {\n    try {\n      await this.loadAndCache(id);\n    } catch (error) {\n      console.error(\"Cache refresh failed\", error);\n    }\n  }\n}<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uc608\uc81c\uc5d0\uc11c\ub294 \uce90\uc2dc\uc758 TTL\uc774 60\ucd08 \uc774\ud558\ub85c \ub0a8\uc73c\uba74 \ubc31\uadf8\ub77c\uc6b4\ub4dc \uac31\uc2e0\uc744 \uc2dc\uc791\ud55c\ub2e4. \uae30\uc874 \uce90\uc2dc\ub294 \uc989\uc2dc \ubc18\ud658\ud558\uace0, \uac31\uc2e0\uc774 \uc644\ub8cc\ub418\uba74 Redis\uc5d0 \uc0c8 \ub370\uc774\ud130\uc640 TTL\uc744 \uae30\ub85d\ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc7a5\uc810\uacfc \ub2e8\uc810<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc7a5\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc778\uae30 \ub370\uc774\ud130\uc758 Cache Miss\ub97c \uc904\uc77c \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uce90\uc2dc \uac31\uc2e0\uc5d0 \ub530\ub978 \uc0ac\uc6a9\uc790 \uc694\uccad\uc758 \uc9c0\uc5f0\uc744 \uc904\uc77c \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc77d\uae30 \uc694\uccad\uc774 \ub9ce\uc740 \uc11c\ube44\uc2a4\uc5d0\uc11c \uc720\uc6a9\ud558\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ub2e8\uc810<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc870\ud68c\uac00 \uc801\uc740 \ub370\uc774\ud130\uae4c\uc9c0 \uac31\uc2e0\ud558\uba74 DB \ubd80\ud558\uac00 \uc99d\uac00\ud55c\ub2e4.<\/li>\n\n\n\n<li>\uc5ec\ub7ec \uc694\uccad\uc774 \ub3d9\uc2dc\uc5d0 \ub4e4\uc5b4\uc624\uba74 \uc911\ubcf5 \uac31\uc2e0\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uac31\uc2e0 \ub3c4\uc911 \ub370\uc774\ud130\uac00 \uc218\uc815\ub418\uba74 \uc624\ub798\ub41c \uac12\uc774 \ub2e4\uc2dc \uc800\uc7a5\ub420 \uc218 \uc788\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc801\ud569\ud55c \uc0c1\ud669:<\/strong> \ub7ad\ud0b9, \uc778\uae30 \ucf58\ud150\uce20, \ub300\uc2dc\ubcf4\ub4dc\ucc98\ub7fc \uc77d\uae30 \uc9c0\uc5f0\uc5d0 \ubbfc\uac10\ud55c \ub370\uc774\ud130.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc81c \uc11c\ube44\uc2a4\uc5d0\uc11c\ub294 Singleflight \ub610\ub294 \ubd84\uc0b0 \uc870\uc728, \ub370\uc774\ud130 \ubc84\uc804 \uac80\uc99d, \uac31\uc2e0 \uc2e4\ud328 \ubaa8\ub2c8\ud130\ub9c1 \ub4f1\uc744 \ucd94\uac00\ub85c \uace0\ub824\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uce90\uc2f1 \ud328\ud134 \ube44\uad50<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\ud328\ud134<\/th><th>\uce90\uc2dc \ubbf8\uc2a4 \ucc98\ub9ac<\/th><th>\uc4f0\uae30 \uc804\ub7b5<\/th><th>\ud575\uc2ec \ubaa9\uc801<\/th><\/tr><tr><td>Cache-Aside<\/td><td>\uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 DB \uc870\ud68c<\/td><td>DB \uc800\uc7a5 \ud6c4 \uce90\uc2dc \ubb34\ud6a8\ud654<\/td><td>\ubc94\uc6a9\uc801\uc778 \uce90\uc2f1<\/td><\/tr><tr><td>Read-Through<\/td><td>\uce90\uc2dc \uacc4\uce35\uc774 DB \uc870\ud68c<\/td><td>\ubcc4\ub3c4 \uc4f0\uae30 \uc815\ucc45<\/td><td>\uc870\ud68c \ub85c\uc9c1 \ucd94\uc0c1\ud654<\/td><\/tr><tr><td>Write-Through<\/td><td>\uce90\uc2dc \uacc4\uce35\uc774 \uad00\ub9ac<\/td><td>\uce90\uc2dc\uc640 DB \uac31\uc2e0<\/td><td>\uc4f0\uae30 \uc774\ud6c4 \uce90\uc2dc \uc720\uc9c0<\/td><\/tr><tr><td>Write-Behind<\/td><td>\uce90\uc2dc \uacc4\uce35\uc5d0 \ub530\ub77c \ub2e4\ub984<\/td><td>\uce90\uc2dc \ubc18\uc601 \ud6c4 \ube44\ub3d9\uae30 DB \uc800\uc7a5<\/td><td>\uc4f0\uae30 \uc751\ub2f5 \uc9c0\uc5f0 \uac10\uc18c<\/td><\/tr><tr><td>Write-Around<\/td><td>\uc77c\ubc18\uc801\uc73c\ub85c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 DB \uc870\ud68c<\/td><td>DB \uc9c1\uc811 \uc800\uc7a5 \ubc0f \uce90\uc2dc \ubb34\ud6a8\ud654<\/td><td>\ubd88\ud544\uc694\ud55c \uce90\uc2dc \uac31\uc2e0 \ubc29\uc9c0<\/td><\/tr><tr><td>Refresh-Ahead<\/td><td>\uc0ac\uc804 \uac31\uc2e0\uc73c\ub85c \ubbf8\uc2a4 \uac10\uc18c<\/td><td>\ubc31\uadf8\ub77c\uc6b4\ub4dc \uce90\uc2dc \uac31\uc2e0<\/td><td>\uc77d\uae30 \uc9c0\uc5f0 \uac10\uc18c<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ud328\ud134\ub4e4\uc740 \uc11c\ub85c \ubc30\ud0c0\uc801\uc778 \uc120\ud0dd\uc9c0\uac00 \uc544\ub2c8\ub2e4. \uc870\ud68c \uc804\ub7b5\uacfc \uc4f0\uae30 \uc804\ub7b5\uc744 \uc870\ud569\ud574 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\ub97c \ub4e4\uc5b4 Cache-Aside\uc640 Write-Around\ub97c \uc870\ud569\ud558\uba74 \uc77d\uae30\ub294 \uce90\uc2dc\ub97c \uc0ac\uc6a9\ud558\uace0 \uc4f0\uae30\ub294 DB\uc5d0 \uc9c1\uc811 \ubc18\uc601\ud55c \ub4a4 \uce90\uc2dc\ub97c \ubb34\ud6a8\ud654\ud55c\ub2e4. \uc5ec\uae30\uc5d0 Refresh-Ahead\ub97c \ucd94\uac00\ud558\uba74 \uc778\uae30 \ub370\uc774\ud130\uc758 \uce90\uc2dc\ub97c \ub9cc\ub8cc \uc804\uc5d0 \uac31\uc2e0\ud560 \uc218\ub3c4 \uc788\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uac8c\uc784 \uc11c\ubc84\uc5d0\uc11c\uc758 \uc801\uc6a9 \uae30\uc900<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uac8c\uc784 \uc11c\ubc84\uc5d0\uc11c\ub294 \ub370\uc774\ud130\uc758 \uc131\uaca9\uc5d0 \ub530\ub77c \uce90\uc2f1 \ud328\ud134\uc744 \ub2e4\ub974\uac8c \uc120\ud0dd\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\ub370\uc774\ud130<\/th><th>\uace0\ub824\ud560 \ud328\ud134<\/th><th>\uc124\uacc4\uc0c1 \ud575\uc2ec<\/th><\/tr><tr><td>\ud50c\ub808\uc774\uc5b4 \ud504\ub85c\ud544<\/td><td>Cache-Aside<\/td><td>\uce90\uc2dc TTL\uacfc \ubb34\ud6a8\ud654<\/td><\/tr><tr><td>\uac8c\uc784 \uc124\uc815<\/td><td>Cache-Aside \ub610\ub294 Read-Through<\/td><td>\uacf5\ud1b5 \uce90\uc2dc \uc815\ucc45<\/td><\/tr><tr><td>\uc778\uae30 \ub7ad\ud0b9<\/td><td>Refresh-Ahead<\/td><td>\ub9cc\ub8cc \uc2dc\uc810\uc758 \uc9c0\uc5f0 \uac10\uc18c<\/td><\/tr><tr><td>\uc0c1\ud488 \uc815\ubcf4<\/td><td>Cache-Aside + Write-Around<\/td><td>\uc870\ud68c \ube48\ub3c4\uc640 \uce90\uc2dc \uac31\uc2e0 \ube44\uc6a9<\/td><\/tr><tr><td>\uace0\ube48\ub3c4 \uac8c\uc784 \uc0c1\ud0dc<\/td><td>Write-Behind \uace0\ub824<\/td><td>\ub0b4\uad6c\uc131, \uc21c\uc11c \ubcf4\uc7a5, \ubcf5\uad6c<\/td><\/tr><tr><td>\ud3ec\uc778\ud2b8 \ubc0f \uc7ac\ud654<\/td><td>DB \ud2b8\ub79c\uc7ad\uc158 \uc911\uc2ec<\/td><td>\uc815\ud655\uc131, \uc911\ubcf5 \uc694\uccad \ubc29\uc9c0<\/td><\/tr><tr><td>\uad6c\ub9e4 \uae30\ub85d<\/td><td>DB \ud2b8\ub79c\uc7ad\uc158 \uc911\uc2ec<\/td><td>\uc601\uc18d\uc131, \uac70\ub798 \ubb34\uacb0\uc131<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\ucc98\uc74c\ubd80\ud130 \ubcf5\uc7a1\ud55c \ud328\ud134\uc744 \ub3c4\uc785\ud560 \ud544\uc694\ub294 \uc5c6\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc778 \uc870\ud68c \ub370\uc774\ud130\ub294 Cache-Aside\ub85c \uc2dc\uc791\ud558\uace0, \uc2e4\uc81c \ubaa8\ub2c8\ud130\ub9c1 \uacb0\uacfc\uc5d0\uc11c \ubcd1\ubaa9\uc774 \ud655\uc778\ub418\uba74 Read-Through, Refresh-Ahead \ub610\ub294 \ube44\ub3d9\uae30 \uc800\uc7a5\uc744 \uac80\ud1a0\ud558\ub294 \uac83\uc774 \ud569\ub9ac\uc801\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud2b9\ud788 \uce90\uc2dc\ub97c \uc801\uc6a9\ud558\uae30 \uc804\uc5d0 \uc77d\uae30\uc640 \uc4f0\uae30\uc758 \ube44\uc728, \ub370\uc774\ud130\uc758 \uc911\uc694\ub3c4, \ud5c8\uc6a9 \uac00\ub2a5\ud55c \uc9c0\uc5f0, \uc7a5\uc560 \ubc1c\uc0dd \uc2dc \ubcf5\uad6c \ubc29\ubc95\uc744 \uba3c\uc800 \uc815\uc758\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ub9c8\ubb34\ub9ac<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uce90\uc2f1 \ud328\ud134\uc758 \ucc28\uc774\ub294 Redis\uc5d0 \ub370\uc774\ud130\ub97c \uc800\uc7a5\ud558\ub294 \ubc29\ubc95\uc774 \uc544\ub2c8\ub77c, \ub370\uc774\ud130\uc758 \uc870\ud68c\uc640 \uc218\uc815\uc5d0 \ub300\ud55c \ucc45\uc784\uc744 \uc5b4\ub5bb\uac8c \ubd84\ubc30\ud558\ub294\uac00\uc5d0 \uc788\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Cache-Aside\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uce90\uc2dc\ub97c \uc9c1\uc811 \uad00\ub9ac\ud55c\ub2e4.<\/li>\n\n\n\n<li>Read-Through\ub294 \uce90\uc2dc \uacc4\uce35\uc774 \uc870\ud68c\uc640 \uce90\uc2dc \uc801\uc7ac\ub97c \ub2f4\ub2f9\ud55c\ub2e4.<\/li>\n\n\n\n<li>Write-Through\ub294 \uce90\uc2dc \uacc4\uce35\uc774 DB\uc640 \uce90\uc2dc\ub97c \ud568\uaed8 \uac31\uc2e0\ud55c\ub2e4.<\/li>\n\n\n\n<li>Write-Behind\ub294 \uce90\uc2dc \ubc18\uc601 \uc774\ud6c4 DB \uc800\uc7a5\uc744 \ube44\ub3d9\uae30\ub85c \uc218\ud589\ud55c\ub2e4.<\/li>\n\n\n\n<li>Write-Around\ub294 \uc4f0\uae30 \uc791\uc5c5\uc5d0\uc11c \uce90\uc2dc \uac31\uc2e0\uc744 \uc0dd\ub7b5\ud558\uace0 DB\uc5d0 \uc9c1\uc811 \uc800\uc7a5\ud55c\ub2e4.<\/li>\n\n\n\n<li>Refresh-Ahead\ub294 \uce90\uc2dc\uac00 \ub9cc\ub8cc\ub418\uae30 \uc804\uc5d0 \ubbf8\ub9ac \uac31\uc2e0\ud55c\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5b4\ub5a4 \ud328\ud134\ub3c4 \ubaa8\ub4e0 \uc0c1\ud669\uc5d0\uc11c \ucd5c\uc120\uc740 \uc544\ub2c8\ub2e4. \uc77d\uae30 \uc131\ub2a5\uc744 \ub192\uc774\uba74 \uac31\uc2e0 \ube44\uc6a9\uc774 \uc99d\uac00\ud560 \uc218 \uc788\uace0, \uc4f0\uae30 \uc9c0\uc5f0\uc744 \uc904\uc774\uba74 \ub370\uc774\ud130 \uc720\uc2e4 \uc704\ud5d8\uacfc \ubcf5\uad6c \ubcf5\uc7a1\ub3c4\uac00 \ucee4\uc9c8 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uce90\uc2f1 \uc124\uacc4\uc758 \ud575\uc2ec\uc740 \uc131\ub2a5, \ub370\uc774\ud130 \uc77c\uad00\uc131, \uc7a5\uc560 \ubcf5\uad6c \uc0ac\uc774\uc5d0\uc11c \uc2dc\uc2a4\ud15c\uc758 \uc694\uad6c\uc0ac\ud56d\uc5d0 \ub9de\ub294 \uade0\ud615\uc744 \ucc3e\ub294 \uac83\uc774\ub2e4.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uce90\uc2f1\uc740 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uc870\ud68c \ubd80\ud558\ub97c \uc904\uc774\uace0 \uc751\ub2f5 \uc18d\ub3c4\ub97c \uac1c\uc120\ud558\uae30 \uc704\ud574 \uc790\uc8fc \uc0ac\uc6a9\ud558\ub294 \uae30\uc220\uc774\ub2e4. \ud558\uc9c0\ub9cc \uce90\uc2dc\ub97c \ub3c4\uc785\ud558\ub294 \uac83\ub9cc\uc73c\ub85c \uc131\ub2a5\uacfc \ub370\uc774\ud130 \uc77c\uad00\uc131\uc774 \ubaa8\ub450 \ud574\uacb0\ub418\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4. \uce90\uc2dc\ub97c \ub204\uac00 \uc870\ud68c\ud558\ub294\uc9c0, \ub370\uc774\ud130\ub97c \uc218\uc815\ud560 \ub54c \uc5b4\ub290 \uc800\uc7a5\uc18c\ub97c \uba3c\uc800 \uac31\uc2e0\ud558\ub294\uc9c0, DB \uc800\uc7a5\uc774 \uc9c0\uc5f0\ub418\uac70\ub098 \uc2e4\ud328\ud558\uba74 \uc5b4\ub5bb\uac8c \ubcf5\uad6c\ud558\ub294\uc9c0\uc5d0 \ub530\ub77c \uc2dc\uc2a4\ud15c\uc758 \ub3d9\uc791\uc740 \ub2ec\ub77c\uc9c4\ub2e4. \uc774\ub7ec\ud55c \uc124\uacc4 \ubc29\uc2dd\uc740 \uce90\uc2f1 \ud328\ud134(Cache Pattern)\uc73c\ub85c \uad6c\ubd84\ud560 \uc218 \uc788\ub2e4. \ub300\ud45c\uc801\uc778 \uce90\uc2f1 \ud328\ud134\uc5d0\ub294 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2628","post","type-post","status-publish","format-standard","hentry","category-dev-logs"],"_links":{"self":[{"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts\/2628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2628"}],"version-history":[{"count":1,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts\/2628\/revisions"}],"predecessor-version":[{"id":2629,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts\/2628\/revisions\/2629"}],"wp:attachment":[{"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}