{"id":2751,"date":"2026-10-26T01:22:22","date_gmt":"2026-10-26T01:22:22","guid":{"rendered":"https:\/\/wayhope.kro.kr\/?p=2751"},"modified":"2026-10-26T01:22:22","modified_gmt":"2026-10-26T01:22:22","slug":"%eb%b9%84%ea%b4%80%ec%a0%81-%eb%9d%bdpessimistic-lock-%eb%82%99%ea%b4%80%ec%a0%81-%eb%9d%bdoptimistic-lock-%eb%b6%84%ec%82%b0-%eb%9d%bddistributed-lock","status":"publish","type":"post","link":"https:\/\/wayhope.kro.kr\/?p=2751","title":{"rendered":"\ube44\uad00\uc801 \ub77d(Pessimistic Lock), \ub099\uad00\uc801 \ub77d(Optimistic Lock), \ubd84\uc0b0 \ub77d(Distributed Lock)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\ub3d9\uc2dc\uc131 \uc81c\uc5b4(Concurrency Control)\ub294 \uc5ec\ub7ec \uc694\uccad\uc774 \ub3d9\uc77c\ud55c \ub370\uc774\ud130\uc5d0 \ub3d9\uc2dc\uc5d0 \uc811\uadfc\ud560 \ub54c \ub370\uc774\ud130\uc758 \uc77c\uad00\uc131\uacfc \ubb34\uacb0\uc131\uc744 \ubcf4\uc7a5\ud558\uae30 \uc704\ud55c \ud575\uc2ec \uae30\uc220\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc628\ub77c\uc778 \uac8c\uc784 \uc11c\ubc84, \ud3ec\uc778\ud2b8 \uc815\uc0b0, \uacb0\uc81c \uc2dc\uc2a4\ud15c, \ub9e4\uce6d \uc2dc\uc2a4\ud15c\ucc98\ub7fc \uc5ec\ub7ec \uc0ac\uc6a9\uc790\uc758 \uc694\uccad\uc774 \ub3d9\uc2dc\uc5d0 \ucc98\ub9ac\ub418\ub294 \ud658\uacbd\uc5d0\uc11c\ub294 \ub3d9\uc2dc\uc131 \ubb38\uc81c\uac00 \ube48\ubc88\ud558\uac8c \ubc1c\uc0dd\ud55c\ub2e4. \uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uc0ac\uc6a9\ud558\ub294 \ub300\ud45c\uc801\uc778 \ubc29\ubc95\uc774 \ube44\uad00\uc801 \ub77d, \ub099\uad00\uc801 \ub77d, \ubd84\uc0b0 \ub77d\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac01 \ubc29\uc2dd\uc740 \ub3d9\uc2dc \uc811\uadfc\uc744 \uc81c\uc5b4\ud558\ub294 \uc704\uce58\uc640 \uc804\ub7b5\uc774 \ub2e4\ub974\ub2e4. \ub530\ub77c\uc11c \ub370\uc774\ud130\uc758 \ud2b9\uc131, \ucda9\ub3cc \ube48\ub3c4, \ucc98\ub9ac\ub7c9, \uc11c\ubc84 \uad6c\uc870\ub97c \uace0\ub824\ud574 \uc801\uc808\ud55c \ubc29\uc2dd\uc744 \uc120\ud0dd\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ub3d9\uc2dc\uc131 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud558\ub294 \uc774\uc720<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub3d9\uc77c\ud55c \ub370\uc774\ud130\uc5d0 \uc5ec\ub7ec \uc694\uccad\uc774 \ub3d9\uc2dc\uc5d0 \uc811\uadfc\ud558\uba74 \ud558\ub098\uc758 \uc694\uccad\uc774 \uc218\ud589\ud55c \ubcc0\uacbd \uc0ac\ud56d\uc744 \ub2e4\ub978 \uc694\uccad\uc774 \ub36e\uc5b4\uc4f0\uac70\ub098, \ub370\uc774\ud130\uac00 \uc911\ubcf5 \ucc98\ub9ac\ub418\ub294 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\ub97c \ub4e4\uc5b4 \uc0ac\uc6a9\uc790\uc758 \ud3ec\uc778\ud2b8\uac00 100\uc810\uc778 \uc0c1\ud669\uc5d0\uc11c \ub450 \uc694\uccad\uc774 \ub3d9\uc2dc\uc5d0 30\uc810\uc744 \uc0ac\uc6a9\ud55c\ub2e4\uace0 \uac00\uc815\ud558\uc790.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc694\uccad A\uac00 \ud3ec\uc778\ud2b8 100\uc810\uc744 \uc870\ud68c\ud55c\ub2e4.<\/li>\n\n\n\n<li>\uc694\uccad B\ub3c4 \ud3ec\uc778\ud2b8 100\uc810\uc744 \uc870\ud68c\ud55c\ub2e4.<\/li>\n\n\n\n<li>\uc694\uccad A\uac00 30\uc810\uc744 \ucc28\uac10\ud558\uc5ec 70\uc810\uc73c\ub85c \uc800\uc7a5\ud55c\ub2e4.<\/li>\n\n\n\n<li>\uc694\uccad B\ub3c4 30\uc810\uc744 \ucc28\uac10\ud558\uc5ec 70\uc810\uc73c\ub85c \uc800\uc7a5\ud55c\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub450 \uc694\uccad\uc774 \uc815\uc0c1\uc801\uc73c\ub85c \ucc98\ub9ac\ub41c \uac83\ucc98\ub7fc \ubcf4\uc774\uc9c0\ub9cc \uc2e4\uc81c\ub85c\ub294 60\uc810\uc774 \ucc28\uac10\ub418\uc5b4\uc57c \ud55c\ub2e4. \uacb0\uacfc\uc801\uc73c\ub85c \ud3ec\uc778\ud2b8\uac00 70\uc810\uc73c\ub85c \ub0a8\ub294 \uac31\uc2e0 \uc190\uc2e4(Lost Update)\uc774 \ubc1c\uc0dd\ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub7ec\ud55c \ubb38\uc81c\ub97c \ubc29\uc9c0\ud558\ub824\uba74 \ub370\uc774\ud130\uc758 \uc870\ud68c\uc640 \ubcc0\uacbd \uacfc\uc815\uc5d0\uc11c \ub3d9\uc2dc \uc811\uadfc\uc744 \uc81c\uc5b4\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ube44\uad00\uc801 \ub77d(Pessimistic Lock)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ube44\uad00\uc801 \ub77d\uc740 \uc5ec\ub7ec \uc694\uccad\uc774 \ub3d9\uc2dc\uc5d0 \ub3d9\uc77c\ud55c \ub370\uc774\ud130\uc5d0 \uc811\uadfc\ud558\uba74 \ucda9\ub3cc\uc774 \ubc1c\uc0dd\ud560 \uac00\ub2a5\uc131\uc774 \ub192\ub2e4\uace0 \uac00\uc815\ud558\ub294 \ubc29\uc2dd\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub370\uc774\ud130\ub97c \ubcc0\uacbd\ud558\uae30 \uc804\uc5d0 \uba3c\uc800 \uc7a0\uae08\uc744 \ud68d\ub4dd\ud558\uace0, \uc7a0\uae08\uc744 \ubcf4\uc720\ud55c \ud2b8\ub79c\uc7ad\uc158\ub9cc \ud574\ub2f9 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\ub3c4\ub85d \uc81c\ud55c\ud55c\ub2e4. \ub2e4\ub978 \ud2b8\ub79c\uc7ad\uc158\uc740 \uc7a0\uae08\uc774 \ud574\uc81c\ub420 \ub54c\uae4c\uc9c0 \ub300\uae30\ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc73c\ub85c \uad00\uacc4\ud615 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \ud589 \uc7a0\uae08(Row Lock)\uc744 \uc774\uc6a9\ud574 \uad6c\ud604\ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub3d9\uc791 \uc6d0\ub9ac<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0\uc11c <code>SELECT ... FOR UPDATE<\/code>\ub97c \uc0ac\uc6a9\ud558\uba74 \uc870\ud68c\ud55c \ud589\uc5d0 \uc4f0\uae30 \uc7a0\uae08\uc744 \uc124\uc815\ud560 \uc218 \uc788\ub2e4. \uc815\ud655\ud55c \uc7a0\uae08 \ubc94\uc704\uc640 \ub3d9\uc791\uc740 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc885\ub958\uc640 \uaca9\ub9ac \uc218\uc900\uc5d0 \ub530\ub77c \ub2ec\ub77c\uc9c8 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>BEGIN;\n\nSELECT points\nFROM users\nWHERE id = 1\nFOR UPDATE;\n\nUPDATE users\nSET points = points - 30\nWHERE id = 1;\n\nCOMMIT;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ud2b8\ub79c\uc7ad\uc158\uc774 \ud574\ub2f9 \ud589\uc758 \uc7a0\uae08\uc744 \ud68d\ub4dd\ud558\uba74 \ub2e4\ub978 \ud2b8\ub79c\uc7ad\uc158\uc740 \uac19\uc740 \ud589\uc5d0 \ub300\ud55c \ucda9\ub3cc\ud558\ub294 \uc791\uc5c5\uc744 \uc989\uc2dc \uc218\ud589\ud558\uc9c0 \ubabb\ud558\uace0 \ub300\uae30\ud55c\ub2e4. \ud2b8\ub79c\uc7ad\uc158\uc774 \ucee4\ubc0b\ub418\uac70\ub098 \ub864\ubc31\ub418\uba74 \uc7a0\uae08\uc774 \ud574\uc81c\ub41c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc81c \uc11c\ube44\uc2a4\uc5d0\uc11c\ub294 \ud3ec\uc778\ud2b8 \ubd80\uc871 \uc5ec\ubd80\ub97c \uac80\uc99d\ud55c \ud6c4 \ucc28\uac10\ud574\uc57c \ud558\uba70, \ud2b8\ub79c\uc7ad\uc158\uc744 \ubd88\ud544\uc694\ud558\uac8c \uc624\ub798 \uc720\uc9c0\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc7a5\uc810<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ucda9\ub3cc\uc774 \ube48\ubc88\ud55c \uc0c1\ud669\uc5d0\uc11c \ub370\uc774\ud130\uc758 \uc77c\uad00\uc131\uc744 \uc720\uc9c0\ud558\uae30 \uc27d\ub2e4.<\/li>\n\n\n\n<li>\uc7a0\uae08\uc744 \ud68d\ub4dd\ud55c \ud2b8\ub79c\uc7ad\uc158\uc774 \uc791\uc5c5\uc744 \uc218\ud589\ud558\ub294 \ub3d9\uc548 \ub2e4\ub978 \ud2b8\ub79c\uc7ad\uc158\uc758 \ucda9\ub3cc\ud558\ub294 \ubcc0\uacbd\uc744 \uc81c\ud55c\ud55c\ub2e4.<\/li>\n\n\n\n<li>\uc7ac\uc2dc\ub3c4 \ub85c\uc9c1 \uc5c6\uc774\ub3c4 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uc7a0\uae08 \uba54\ucee4\ub2c8\uc998\uc73c\ub85c \ub3d9\uc2dc \uc811\uadfc\uc744 \uc81c\uc5b4\ud560 \uc218 \uc788\ub294 \uacbd\uc6b0\uac00 \ub9ce\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ub2e8\uc810<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ub2e4\ub978 \ud2b8\ub79c\uc7ad\uc158\uc774 \uc7a0\uae08 \ud574\uc81c\ub97c \uae30\ub2e4\ub9ac\ubbc0\ub85c \uc751\ub2f5 \uc2dc\uac04\uc774 \uc99d\uac00\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc7a0\uae08 \ub300\uae30\uac00 \uae38\uc5b4\uc9c0\uba74 \ucc98\ub9ac\ub7c9\uc774 \uac10\uc18c\ud55c\ub2e4.<\/li>\n\n\n\n<li>\uc5ec\ub7ec \uc790\uc6d0\uc744 \uc11c\ub85c \ub2e4\ub978 \uc21c\uc11c\ub85c \uc7a0\uadf8\uba74 \uad50\ucc29 \uc0c1\ud0dc(Deadlock)\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc7a0\uae08 \uacbd\ud569\uc774 \uc2ec\ud55c \ud658\uacbd\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \ubd80\ud558\uac00 \ucee4\uc9c8 \uc218 \uc788\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\uc801\ud569\ud55c \uc0ac\uc6a9 \uc0ac\ub840<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ub3d9\uc77c\ud55c \uacc4\uc815\uc758 \ud3ec\uc778\ud2b8 \ubc0f \uc794\uc561 \ucc28\uac10<\/li>\n\n\n\n<li>\uc7ac\uace0 \uc218\ub7c9 \ubcc0\uacbd<\/li>\n\n\n\n<li>\uc81c\ud55c\ub41c \uc218\ub7c9\uc758 \uc544\uc774\ud15c \uc9c0\uae09<\/li>\n\n\n\n<li>\ucda9\ub3cc\uc774 \ube48\ubc88\ud558\uace0 \ub370\uc774\ud130 \ubcc0\uacbd\uc758 \uc815\ud655\uc131\uc774 \uc911\uc694\ud55c \uc791\uc5c5<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ube44\uad00\uc801 \ub77d\uc740 \ucda9\ub3cc\uc744 \uc0ac\uc804\uc5d0 \ud1b5\uc81c\ud558\ub294 \ub300\uc2e0 \uc7a0\uae08 \ub300\uae30 \ube44\uc6a9\uc744 \uac10\uc218\ud558\ub294 \uc804\ub7b5\uc774\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ub099\uad00\uc801 \ub77d(Optimistic Lock)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ub099\uad00\uc801 \ub77d\uc740 \ub300\ubd80\ubd84\uc758 \uc694\uccad\uc774 \uc11c\ub85c \ucda9\ub3cc\ud558\uc9c0 \uc54a\ub294\ub2e4\uace0 \uac00\uc815\ud558\ub294 \ubc29\uc2dd\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub370\uc774\ud130\ub97c \uc870\ud68c\ud560 \ub54c \uc7a0\uae08\uc744 \uc7a5\uc2dc\uac04 \uc720\uc9c0\ud558\uc9c0 \uc54a\ub294\ub2e4. \ub300\uc2e0 \ub370\uc774\ud130\ub97c \uc218\uc815\ud558\ub294 \uc2dc\uc810\uc5d0 \ub2e4\ub978 \ud2b8\ub79c\uc7ad\uc158\uc774 \ud574\ub2f9 \ub370\uc774\ud130\ub97c \uba3c\uc800 \ubcc0\uacbd\ud588\ub294\uc9c0 \uac80\uc0ac\ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc77c\ubc18\uc801\uc73c\ub85c \ubc84\uc804 \ubc88\ud638(Version)\ub098 \uc218\uc815 \uc2dc\uac01\uc744 \uc774\uc6a9\ud574 \uad6c\ud604\ud55c\ub2e4. \uc774 \uc911 \ubc84\uc804 \ubc88\ud638\ub97c \uc0ac\uc6a9\ud558\ub294 \ubc29\uc2dd\uc774 \ub370\uc774\ud130\uc758 \ubcc0\uacbd \uc5ec\ubd80\ub97c \uba85\ud655\ud558\uac8c \uac80\uc99d\ud558\uae30\uc5d0 \uc720\ub9ac\ud558\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ub3d9\uc791 \uc6d0\ub9ac<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\ub370\uc774\ud130\uc5d0 \ubc84\uc804 \uceec\ub7fc\uc744 \ucd94\uac00\ud55c\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE TABLE users (\n    id BIGINT PRIMARY KEY,\n    points INT NOT NULL,\n    version INT NOT NULL DEFAULT 0\n);<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ub370\uc774\ud130\ub97c \uc870\ud68c\ud560 \ub54c \ud604\uc7ac \ubc84\uc804\uc744 \ud568\uaed8 \uc77d\ub294\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SELECT points, version\nFROM users\nWHERE id = 1;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\ud3ec\uc778\ud2b8\ub97c \uc218\uc815\ud560 \ub54c \uc870\ud68c\ud55c \ubc84\uc804\uc774 \uc5ec\uc804\ud788 \ub3d9\uc77c\ud55c\uc9c0 \ud655\uc778\ud55c\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>UPDATE users\nSET points = points - 30,\n    version = version + 1\nWHERE id = 1\n  AND version = 0;<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5c5\ub370\uc774\ud2b8\ub41c \ud589\uc774 \uc788\ub2e4\uba74 \ubcc0\uacbd\uc5d0 \uc131\uacf5\ud55c \uac83\uc774\ub2e4. \ubc18\ub300\ub85c \ubcc0\uacbd\ub41c \ud589\uc774 \uc5c6\ub2e4\uba74 \ub2e4\ub978 \ud2b8\ub79c\uc7ad\uc158\uc774 \uba3c\uc800 \ub370\uc774\ud130\ub97c \uc218\uc815\ud588\uac70\ub098 \ub300\uc0c1 \ub370\uc774\ud130\uac00 \uc874\uc7ac\ud558\uc9c0 \uc54a\ub294 \uac83\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \uacbd\uc6b0 \ucd5c\uc2e0 \ub370\uc774\ud130\ub97c \ub2e4\uc2dc \uc870\ud68c\ud558\uace0 \uc791\uc5c5\uc744 \uc7ac\uc2dc\ub3c4\ud558\uac70\ub098, \ucda9\ub3cc\uc744 \ud638\ucd9c\uc790\uc5d0\uac8c \ubc18\ud658\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc704 SQL\uc740 \ubc84\uc804\uc774 <code>0<\/code>\uc778 \uc0c1\ud0dc\uc5d0\uc11c \uc2e4\ud589\ud558\ub294 \uc608\uc2dc\ub2e4. \uc2e4\uc81c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c\ub294 \uc870\ud68c\ud55c \ubc84\uc804 \uac12\uc744 \ub9e4\uac1c\ubcc0\uc218\ub85c \uc804\ub2ec\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc7a5\uc810<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ub370\uc774\ud130\ub97c \uc870\ud68c\ud558\ub294 \ub3d9\uc548 \uc7a0\uae08\uc744 \uc7a5\uc2dc\uac04 \uc720\uc9c0\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/li>\n\n\n\n<li>\ucda9\ub3cc\uc774 \uc801\uc740 \ud658\uacbd\uc5d0\uc11c \ub192\uc740 \ucc98\ub9ac\ub7c9\uc744 \uae30\ub300\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\ucda9\ub3cc \uc5ec\ubd80\ub97c \uba85\uc2dc\uc801\uc73c\ub85c \ud655\uc778\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc7a0\uae08 \ub300\uae30\ub85c \uc778\ud55c \ubcd1\ubaa9\uc744 \uc904\uc77c \uc218 \uc788\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ub2e8\uc810<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ucda9\ub3cc\uc774 \ubc1c\uc0dd\ud558\uba74 \uc791\uc5c5\uc744 \uc7ac\uc2dc\ub3c4\ud558\uac70\ub098 \uc2e4\ud328\ub97c \ucc98\ub9ac\ud574\uc57c \ud55c\ub2e4.<\/li>\n\n\n\n<li>\ucda9\ub3cc\uc774 \ube48\ubc88\ud55c \ud658\uacbd\uc5d0\uc11c\ub294 \uc7ac\uc2dc\ub3c4 \ube44\uc6a9\uc774 \ucee4\uc9c8 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\ubc84\uc804 \uac80\uc99d\uc744 \ub204\ub77d\ud558\uba74 \ub3d9\uc2dc\uc131 \uc81c\uc5b4\uac00 \uc815\uc0c1\uc801\uc73c\ub85c \ub3d9\uc791\ud558\uc9c0 \uc54a\ub294\ub2e4.<\/li>\n\n\n\n<li>\uc5ec\ub7ec \ud589\uc5d0 \uac78\uce5c \ubcf5\uc7a1\ud55c \ubd88\ubcc0 \uc870\uac74\uc740 \ub2e8\uc77c \ud589\uc758 \ubc84\uc804 \uac80\uc99d\ub9cc\uc73c\ub85c \ubcf4\uc7a5\ub418\uc9c0 \uc54a\uc744 \uc218 \uc788\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\uc801\ud569\ud55c \uc0ac\uc6a9 \uc0ac\ub840<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc0ac\uc6a9\uc790 \ud504\ub85c\ud544 \uc218\uc815<\/li>\n\n\n\n<li>\uac8c\uc784 \uc124\uc815 \ubc0f \uce90\ub9ad\ud130 \uc815\ubcf4 \ubcc0\uacbd<\/li>\n\n\n\n<li>\uac8c\uc2dc\uae00 \uc218\uc815<\/li>\n\n\n\n<li>\ucda9\ub3cc \ube48\ub3c4\uac00 \ub0ae\uc740 \uc77c\ubc18\uc801\uc778 \ub370\uc774\ud130 \uac31\uc2e0<\/li>\n\n\n\n<li>\ub3d9\uc2dc\uc5d0 \ud3b8\uc9d1\ud560 \uc218 \uc788\ub294 \ubb38\uc11c\ub098 \uc124\uc815 \ub370\uc774\ud130<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ub099\uad00\uc801 \ub77d\uc740 \ucda9\ub3cc\uc774 \ubc1c\uc0dd\ud588\uc744 \ub54c \uc774\ub97c \uac10\uc9c0\ud558\uace0 \ubcf5\uad6c\ud558\ub294 \ub300\uc2e0, \ud3c9\uc0c1\uc2dc \uc7a0\uae08 \ube44\uc6a9\uc744 \uc904\uc774\ub294 \uc804\ub7b5\uc774\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\ubd84\uc0b0 \ub77d(Distributed Lock)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\ubd84\uc0b0 \ub77d\uc740 \uc5ec\ub7ec \uc11c\ubc84 \ud504\ub85c\uc138\uc2a4\ub098 \uc778\uc2a4\ud134\uc2a4\uac00 \ub3d9\uc77c\ud55c \uacf5\uc720 \uc790\uc6d0\uc5d0 \uc811\uadfc\ud560 \ub54c \uc0c1\ud638 \ubc30\uc81c\ub97c \ubcf4\uc7a5\ud558\uae30 \uc704\ud55c \uc7a0\uae08 \ubc29\uc2dd\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ube44\uad00\uc801 \ub77d\uacfc \ub099\uad00\uc801 \ub77d\uc774 \uc8fc\ub85c \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \ub3d9\uc2dc\uc131 \uc81c\uc5b4 \ubc29\uc2dd\uc73c\ub85c \uc124\uba85\ub418\ub294 \uac83\uacfc \ub2ec\ub9ac, \ubd84\uc0b0 \ub77d\uc740 \uc5ec\ub7ec \uc2e4\ud589 \uc8fc\uccb4 \uc0ac\uc774\uc758 \uc870\uc815\uc744 \ub2e4\ub8ec\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc608\ub97c \ub4e4\uc5b4 \uac8c\uc784 \uc11c\ubc84\uac00 \uc5ec\ub7ec \uc778\uc2a4\ud134\uc2a4\ub85c \uc2e4\ud589\ub418\uace0 \uc788\ub2e4\uace0 \uac00\uc815\ud558\uc790. \uac01 \uc11c\ubc84\uac00 \ub3d9\uc77c\ud55c \uc0ac\uc6a9\uc790\uc758 \uc77c\uc77c \ubcf4\uc0c1\uc744 \uc9c0\uae09\ud560 \uc218 \uc788\ub2e4\uba74, \uc11c\ubc84 \ub0b4\ubd80\uc758 \uc77c\ubc18\uc801\uc778 \ubba4\ud14d\uc2a4(Mutex)\ub9cc\uc73c\ub85c\ub294 \uc804\uccb4 \uc11c\ubc84\uc758 \ub3d9\uc2dc \uc811\uadfc\uc744 \uc81c\uc5b4\ud560 \uc218 \uc5c6\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uac01 \uc778\uc2a4\ud134\uc2a4\uc758 \uba54\ubaa8\ub9ac\ub294 \uc11c\ub85c \ub3c5\ub9bd\uc801\uc774\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774\ub54c Redis\uc640 \uac19\uc740 \uacf5\uc720 \uc2dc\uc2a4\ud15c\uc744 \uc774\uc6a9\ud574 \ubd84\uc0b0 \ub77d\uc744 \uad6c\ud604\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Redis\ub97c \uc774\uc6a9\ud55c \ubd84\uc0b0 \ub77d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\uc5d0\uc11c\ub294 <code>SET<\/code> \uba85\ub839\uc5b4\uc758 <code>NX<\/code>\uc640 <code>PX<\/code> \uc635\uc158\uc744 \ud65c\uc6a9\ud574 \ub77d\uc744 \ud68d\ub4dd\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>SET lock:user:123 unique-token NX PX 10000<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uac01 \uc635\uc158\uc758 \uc758\ubbf8\ub294 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>NX<\/code>: \ud574\ub2f9 \ud0a4\uac00 \uc874\uc7ac\ud558\uc9c0 \uc54a\uc744 \ub54c\ub9cc \uc0dd\uc131\ud55c\ub2e4.<\/li>\n\n\n\n<li><code>PX 10000<\/code>: \ub77d\uc758 \uc720\ud6a8 \uc2dc\uac04\uc744 \ubc00\ub9ac\ucd08 \ub2e8\uc704\ub85c \uc124\uc815\ud55c\ub2e4.<\/li>\n\n\n\n<li><code>unique-token<\/code>: \ub77d\uc744 \ud68d\ub4dd\ud55c \uc694\uccad\uc744 \uc2dd\ubcc4\ud558\ub294 \uace0\uc720 \ud1a0\ud070\uc774\ub2e4.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\uba85\ub839\uc774 \uc131\uacf5\ud558\uba74 \ud574\ub2f9 \uc694\uccad\uc774 \ub77d\uc744 \ud68d\ub4dd\ud55c \uac83\uc774\ub2e4. \uc774\ubbf8 \ub2e4\ub978 \uc694\uccad\uc774 \ub77d\uc744 \ubcf4\uc720\ud558\uace0 \uc788\ub2e4\uba74 \ud68d\ub4dd\uc5d0 \uc2e4\ud328\ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub77d\uc744 \ud574\uc81c\ud560 \ub54c\ub294 \ubc18\ub4dc\uc2dc \uc18c\uc720\uad8c\uc744 \ud655\uc778\ud574\uc57c \ud55c\ub2e4. \ub2e8\uc21c\ud788 <code>DEL<\/code> \uba85\ub839\uc5b4\ub97c \uc2e4\ud589\ud558\uba74 \ub2e4\ub978 \uc694\uccad\uc774 \uc0c8\ub85c \ud68d\ub4dd\ud55c \ub77d\uc744 \uc0ad\uc81c\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub530\ub77c\uc11c \ud1a0\ud070\uc774 \uc77c\uce58\ud560 \ub54c\ub9cc \uc0ad\uc81c\ud558\ub294 Lua \uc2a4\ud06c\ub9bd\ud2b8\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc77c\ubc18\uc801\uc774\ub2e4.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>if redis.call(\"GET\", KEYS&#91;1]) == ARGV&#91;1] then\n    return redis.call(\"DEL\", KEYS&#91;1])\nelse\n    return 0\nend<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\uc774 \ubc29\uc2dd\uc740 \ub77d\uc744 \ud68d\ub4dd\ud55c \uc694\uccad\ub9cc \ud574\ub2f9 \ub77d\uc744 \ud574\uc81c\ud560 \uc218 \uc788\ub3c4\ub85d \ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\ubd84\uc0b0 \ub77d\uc758 \uc8fc\uc694 \uace0\ub824 \uc0ac\ud56d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ub77d \ub9cc\ub8cc \uc2dc\uac04<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc11c\ubc84\uac00 \ube44\uc815\uc0c1 \uc885\ub8cc\ub418\uac70\ub098 \ub77d \ud574\uc81c \uacfc\uc815\uc774 \uc2e4\ud589\ub418\uc9c0 \uc54a\ub354\ub77c\ub3c4 \uc77c\uc815 \uc2dc\uac04\uc774 \uc9c0\ub098\uba74 \ub77d\uc774 \ub9cc\ub8cc\ub418\ub3c4\ub85d \uc124\uc815\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub2e4\ub9cc \uc791\uc5c5\uc774 \ub77d\uc758 \uc720\ud6a8 \uc2dc\uac04\ubcf4\ub2e4 \uc624\ub798 \uac78\ub9ac\uba74 \ub77d\uc774 \ub9cc\ub8cc\ub41c \ub4a4 \ub2e4\ub978 \uc694\uccad\uc774 \uac19\uc740 \uc790\uc6d0\uc5d0 \uc9c4\uc785\ud560 \uc218 \uc788\ub2e4. \ub530\ub77c\uc11c \uc791\uc5c5 \uc2dc\uac04\uc5d0 \ub9de\ub294 \ub9cc\ub8cc \uc815\ucc45\uc774\ub098 \uc548\uc804\ud55c \ub77d \uac31\uc2e0 \uc804\ub7b5\uc774 \ud544\uc694\ud558\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc18c\uc720\uad8c \uac80\uc99d<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub77d\uc744 \ud68d\ub4dd\ud55c \uc694\uccad\ub9cc \ub77d\uc744 \ud574\uc81c\ud558\ub3c4\ub85d \ud574\uc57c \ud55c\ub2e4. \uace0\uc720 \ud1a0\ud070 \uc5c6\uc774 \uc7a0\uae08\uc744 \ud574\uc81c\ud558\uba74 \ub2e4\ub978 \uc694\uccad\uc758 \ub77d\uc744 \uc0ad\uc81c\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ub124\ud2b8\uc6cc\ud06c \uc7a5\uc560<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\uc640 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc0ac\uc774\uc758 \ud1b5\uc2e0\uc774 \ub04a\uae30\uac70\ub098 \ud0c0\uc784\uc544\uc6c3\uc774 \ubc1c\uc0dd\ud558\uba74 \ub77d \ud68d\ub4dd \uc5ec\ubd80\uac00 \ubd88\ud655\uc2e4\ud560 \uc218 \uc788\ub2e4. \uc774\ub7f0 \uacbd\uc6b0 \ubb34\uc870\uac74 \uc791\uc5c5\uc744 \uc9c4\ud589\ud574\uc11c\ub294 \uc548 \ub418\uba70, \uc2dc\uc2a4\ud15c\uc758 \uc77c\uad00\uc131 \uc694\uad6c\uc5d0 \ub9de\uac8c \uc2e4\ud328\ub97c \ucc98\ub9ac\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ubd84\uc0b0 \ud658\uacbd\uc758 \uc548\uc804\uc131<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis\uc5d0 \ub77d\uc744 \uc124\uc815\ud588\ub2e4\ub294 \uc0ac\uc2e4\ub9cc\uc73c\ub85c \ub370\uc774\ud130 \ubcc0\uacbd\uc758 \uc815\ud655\uc131\uc774 \uc644\uc804\ud788 \ubcf4\uc7a5\ub418\ub294 \uac83\uc740 \uc544\ub2c8\ub2e4. \ub124\ud2b8\uc6cc\ud06c \uc9c0\uc5f0, \ud504\ub85c\uc138\uc2a4 \uc911\ub2e8, \ub77d \ub9cc\ub8cc \ub4f1\uc73c\ub85c \uc778\ud574 \uc774\uc804 \uc18c\uc720\uc790\uac00 \ub77d\uc744 \uc783\uc740 \ub4a4\uc5d0\ub3c4 \uc791\uc5c5\uc744 \uacc4\uc18d\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc815\ud655\uc131\uc774 \uc911\uc694\ud55c \uc2dc\uc2a4\ud15c\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uc870\uac74\ubd80 \uac31\uc2e0, \uace0\uc720 \uc81c\uc57d \uc870\uac74, \uba71\ub4f1\uc131 \ucc98\ub9ac \ub4f1\uc744 \ud568\uaed8 \uc801\uc6a9\ud574\uc57c \ud55c\ub2e4. \ud544\uc694\ud55c \uacbd\uc6b0 \ud39c\uc2f1 \ud1a0\ud070(Fencing Token)\ucc98\ub7fc \uc624\ub798\ub41c \ub77d \uc18c\uc720\uc790\uc758 \uc4f0\uae30\ub97c \uac70\ubd80\ud560 \uc218 \uc788\ub294 \ucd94\uac00\uc801\uc778 \ubcf4\ud638 \uc7a5\uce58\ub3c4 \uace0\ub824\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\uc7a5\uc810<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc5ec\ub7ec \uc11c\ubc84 \uc778\uc2a4\ud134\uc2a4 \uc0ac\uc774\uc5d0\uc11c \uacf5\uc720 \uc790\uc6d0\uc758 \uc811\uadfc\uc744 \uc870\uc815\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\ud2b9\uc815 \uc0ac\uc6a9\uc790\ub098 \uac8c\uc784 \ubc29 \ub2e8\uc704\ub85c \uc791\uc5c5\uc744 \uc9c1\ub82c\ud654\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc5ec\ub7ec \uc11c\ubc84\uc5d0\uc11c \ub3d9\uc2dc\uc5d0 \uc2dc\uc791\ub420 \uc218 \uc788\ub294 \uc791\uc5c5\uc744 \uc81c\uc5b4\ud558\ub294 \ub370 \uc720\uc6a9\ud558\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\ub2e8\uc810<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Redis \ub4f1 \ub77d \uad00\ub9ac \uc2dc\uc2a4\ud15c\uc5d0 \ub300\ud55c \uc758\uc874\uc131\uc774 \uc0dd\uae34\ub2e4.<\/li>\n\n\n\n<li>\ub124\ud2b8\uc6cc\ud06c \uc9c0\uc5f0\uacfc \uc7a5\uc560\uc5d0 \ub300\ud55c \ub300\uc751\uc774 \ud544\uc694\ud558\ub2e4.<\/li>\n\n\n\n<li>\ub77d \ub9cc\ub8cc \uc2dc\uac04\uacfc \uc791\uc5c5 \uc2e4\ud589 \uc2dc\uac04\uc774 \ub9de\uc9c0 \uc54a\uc73c\uba74 \uc911\ubcf5 \uc2e4\ud589\uc774 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/li>\n\n\n\n<li>\uc798\ubabb \uc124\uacc4\ud558\uba74 \uad50\ucc29 \uc0c1\ud0dc\uc640 \uc720\uc0ac\ud55c \ub300\uae30 \ubb38\uc81c \ub610\ub294 \ucc98\ub9ac\ub7c9 \uc800\ud558\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub2e4.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\uc801\ud569\ud55c \uc0ac\uc6a9 \uc0ac\ub840<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\uc5ec\ub7ec \uac8c\uc784 \uc11c\ubc84\uc5d0\uc11c \ub3d9\uc77c\ud55c \ubcf4\uc0c1\uc744 \uc9c0\uae09\ud558\ub294 \uc791\uc5c5<\/li>\n\n\n\n<li>\ubd84\uc0b0 \ud658\uacbd\uc758 \uc911\ubcf5 \uc2a4\ucf00\uc904\ub7ec \uc2e4\ud589 \ubc29\uc9c0<\/li>\n\n\n\n<li>\ud2b9\uc815 \uc0ac\uc6a9\uc790 \ub2e8\uc704\uc758 \uc791\uc5c5 \uc9c1\ub82c\ud654<\/li>\n\n\n\n<li>\uacf5\uc720 \uc790\uc6d0\uc5d0 \ub300\ud55c \uc5ec\ub7ec \uc11c\ubc84\uc758 \ub3d9\uc2dc \uc811\uadfc \uc81c\uc5b4<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\ubd84\uc0b0 \ub77d\uc740 \uc5ec\ub7ec \uc2e4\ud589 \uc8fc\uccb4 \uc0ac\uc774\uc758 \uc870\uc815 \uc218\ub2e8\uc774\ub2e4. \uc2e4\uc81c \ub370\uc774\ud130\uc758 \uc815\ud569\uc131\uc744 \ubcf4\uc7a5\ud558\ub824\uba74 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uc81c\uc57d \uc870\uac74\uacfc \ud2b8\ub79c\uc7ad\uc158\uc744 \ud568\uaed8 \uc124\uacc4\ud574\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uc138 \uac00\uc9c0 \ub77d\uc758 \ucc28\uc774<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>\uad6c\ubd84<\/th><th>\ube44\uad00\uc801 \ub77d<\/th><th>\ub099\uad00\uc801 \ub77d<\/th><th>\ubd84\uc0b0 \ub77d<\/th><\/tr><tr><td>\ud575\uc2ec \uc804\ub7b5<\/td><td>\uba3c\uc800 \uc7a0\uae08<\/td><td>\ubcc0\uacbd \uc2dc \ucda9\ub3cc \uac80\uc99d<\/td><td>\uc5ec\ub7ec \uc2e4\ud589 \uc8fc\uccb4\uc758 \uc811\uadfc \uc870\uc815<\/td><\/tr><tr><td>\uc8fc\uc694 \uad6c\ud604<\/td><td>DB \ud589 \uc7a0\uae08<\/td><td>\ubc84\uc804 \ubc88\ud638, \uc870\uac74\ubd80 \uac31\uc2e0<\/td><td>Redis \ub4f1 \uacf5\uc720 \uc2dc\uc2a4\ud15c<\/td><\/tr><tr><td>\ucda9\ub3cc \ucc98\ub9ac<\/td><td>\uc7a0\uae08 \ub300\uae30<\/td><td>\ucda9\ub3cc \uac10\uc9c0 \ud6c4 \uc7ac\uc2dc\ub3c4 \ub610\ub294 \uc2e4\ud328<\/td><td>\ub77d \ud68d\ub4dd \ub300\uae30, \uc2e4\ud328 \ub610\ub294 \uc7ac\uc2dc\ub3c4<\/td><\/tr><tr><td>\uc8fc\uc694 \ube44\uc6a9<\/td><td>\uc7a0\uae08 \ub300\uae30<\/td><td>\ucda9\ub3cc \ubc0f \uc7ac\uc2dc\ub3c4<\/td><td>\ub124\ud2b8\uc6cc\ud06c \ud1b5\uc2e0\uacfc \ub77d \uad00\ub9ac<\/td><\/tr><tr><td>\uc801\ud569\ud55c \ud658\uacbd<\/td><td>\ucda9\ub3cc \ube48\ub3c4\uac00 \ub192\uc74c<\/td><td>\ucda9\ub3cc \ube48\ub3c4\uac00 \ub0ae\uc74c<\/td><td>\uc5ec\ub7ec \uc11c\ubc84\uac00 \uac19\uc740 \uc790\uc6d0\uc744 \uacf5\uc720\ud568<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\uc138 \ubc29\uc2dd\uc740 \ubc18\ub4dc\uc2dc \uc11c\ub85c \ubc30\ud0c0\uc801\uc778 \uc120\ud0dd\uc9c0\uac00 \uc544\ub2c8\ub2e4. \ubd84\uc0b0 \ub77d\uc73c\ub85c \uc5ec\ub7ec \uc11c\ubc84\uc758 \uc811\uadfc\uc744 \uc870\uc815\ud558\uba74\uc11c \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ud2b8\ub79c\uc7ad\uc158\uacfc \uc870\uac74\ubd80 \uac31\uc2e0\uc73c\ub85c \ucd5c\uc885\uc801\uc778 \ub370\uc774\ud130 \ubb34\uacb0\uc131\uc744 \ubcf4\ud638\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\uac8c\uc784 \uc11c\ubc84\uc5d0\uc11c\uc758 \ud65c\uc6a9 \uc804\ub7b5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\uc2e4\uc2dc\uac04 \uba40\ud2f0\ud50c\ub808\uc774 \uac8c\uc784 \uc11c\ubc84\uc5d0\uc11c\ub294 \ubaa8\ub4e0 \ub370\uc774\ud130\uc5d0 \ub3d9\uc77c\ud55c \ub77d\uc744 \uc801\uc6a9\ud558\uae30\ubcf4\ub2e4 \ub370\uc774\ud130\uc758 \ud2b9\uc131\uc5d0 \ub530\ub77c \uc804\ub7b5\uc744 \ubd84\ub9ac\ud558\ub294 \uac83\uc774 \ud6a8\uc728\uc801\uc774\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ud3ec\uc778\ud2b8 \ubc0f \uc7ac\ud654 \ucc28\uac10<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ub370\uc774\ud130\ubca0\uc774\uc2a4 \ud2b8\ub79c\uc7ad\uc158\uacfc \uc870\uac74\ubd80 \uac31\uc2e0 \ub610\ub294 \ube44\uad00\uc801 \ub77d\uc744 \uc0ac\uc6a9\ud55c\ub2e4. \ud3ec\uc778\ud2b8\uac00 \uc74c\uc218\uac00 \ub418\uc9c0 \uc54a\ub3c4\ub85d \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc218\uc900\uc5d0\uc11c\ub3c4 \uc81c\uc57d \uc870\uac74\uc744 \uac80\ud1a0\ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uc77c\uc77c \ubcf4\uc0c1 \uc9c0\uae09<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\uc9c0\uae09 \uc5ec\ubd80\ub97c \ub098\ud0c0\ub0b4\ub294 \uace0\uc720 \uc81c\uc57d \uc870\uac74\uacfc \ud2b8\ub79c\uc7ad\uc158\uc744 \uc6b0\uc120\uc801\uc73c\ub85c \uace0\ub824\ud55c\ub2e4. \uc5ec\ub7ec \uc11c\ubc84\uac00 \ub3d9\uc77c\ud55c \uc791\uc5c5\uc744 \uc218\ud589\ud560 \uc218 \uc788\ub2e4\uba74 \ubd84\uc0b0 \ub77d\uc744 \ubcf4\uc870\uc801\uc73c\ub85c \ud65c\uc6a9\ud560 \uc218 \uc788\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uac8c\uc784 \ubc29 \uc0c1\ud0dc \ubcc0\uacbd<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud558\ub098\uc758 \uac8c\uc784 \ubc29\uc744 \ud558\ub098\uc758 \uc11c\ubc84 \ud504\ub85c\uc138\uc2a4\uac00 \ub3c5\uc810\uc801\uc73c\ub85c \ucc98\ub9ac\ud558\ub3c4\ub85d \uc124\uacc4\ud558\uba74 \ubd88\ud544\uc694\ud55c \ubd84\uc0b0 \ub77d\uc744 \uc904\uc77c \uc218 \uc788\ub2e4. \uc11c\ubc84 \uac04 \uc18c\uc720\uad8c \uc774\uc804\uc774\ub098 \uacf5\uc720 \uc0c1\ud0dc \ubcc0\uacbd\uc774 \ud544\uc694\ud55c \uacbd\uc6b0\uc5d0\ub294 \ubcc4\ub3c4\uc758 \ub3d9\uc2dc\uc131 \uc81c\uc5b4\uac00 \ud544\uc694\ud558\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\uce90\ub9ad\ud130 \uc815\ubcf4 \uc218\uc815<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ucda9\ub3cc \ube48\ub3c4\uac00 \ub0ae\ub2e4\uba74 \ubc84\uc804 \ubc88\ud638\ub97c \uc774\uc6a9\ud55c \ub099\uad00\uc801 \ub77d\uc774 \uc801\ud569\ud560 \uc218 \uc788\ub2e4. \ucda9\ub3cc\uc774 \ubc1c\uc0dd\ud558\uba74 \ucd5c\uc2e0 \uc0c1\ud0dc\ub97c \ud655\uc778\ud55c \ub4a4 \uc7ac\uc2dc\ub3c4\ud558\uac70\ub098 \uc0ac\uc6a9\uc790\uc5d0\uac8c \ucda9\ub3cc\uc744 \uc54c\ub824\uc57c \ud55c\ub2e4.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\ub9e4\uce6d \ubc0f \ub7ad\ud0b9 \uc2dc\uc2a4\ud15c<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Redis \uc790\ub8cc\uad6c\uc870\uc640 \uc6d0\uc790\uc801 \uba85\ub839\uc744 \ud65c\uc6a9\ud558\uba74 \uc77c\ubd80 \uc791\uc5c5\uc5d0\uc11c \ubcc4\ub3c4\uc758 \ubd84\uc0b0 \ub77d\uc744 \ud53c\ud560 \uc218 \uc788\ub2e4. \uc5ec\ub7ec \ub2e8\uacc4\uc5d0 \uac78\uce5c \uc791\uc5c5\uc758 \uc911\ubcf5 \uc2e4\ud589\uc744 \ub9c9\uc544\uc57c \ud55c\ub2e4\uba74 \uba71\ub4f1\uc131 \ud0a4\uc640 \uc0c1\ud0dc \uc804\uc774 \uac80\uc99d\uc744 \ud568\uaed8 \uace0\ub824\ud55c\ub2e4.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><\/h2>\n","protected":false},"excerpt":{"rendered":"<p>\ub3d9\uc2dc\uc131 \uc81c\uc5b4(Concurrency Control)\ub294 \uc5ec\ub7ec \uc694\uccad\uc774 \ub3d9\uc77c\ud55c \ub370\uc774\ud130\uc5d0 \ub3d9\uc2dc\uc5d0 \uc811\uadfc\ud560 \ub54c \ub370\uc774\ud130\uc758 \uc77c\uad00\uc131\uacfc \ubb34\uacb0\uc131\uc744 \ubcf4\uc7a5\ud558\uae30 \uc704\ud55c \ud575\uc2ec \uae30\uc220\uc774\ub2e4. \uc628\ub77c\uc778 \uac8c\uc784 \uc11c\ubc84, \ud3ec\uc778\ud2b8 \uc815\uc0b0, \uacb0\uc81c \uc2dc\uc2a4\ud15c, \ub9e4\uce6d \uc2dc\uc2a4\ud15c\ucc98\ub7fc \uc5ec\ub7ec \uc0ac\uc6a9\uc790\uc758 \uc694\uccad\uc774 \ub3d9\uc2dc\uc5d0 \ucc98\ub9ac\ub418\ub294 \ud658\uacbd\uc5d0\uc11c\ub294 \ub3d9\uc2dc\uc131 \ubb38\uc81c\uac00 \ube48\ubc88\ud558\uac8c \ubc1c\uc0dd\ud55c\ub2e4. \uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574 \uc0ac\uc6a9\ud558\ub294 \ub300\ud45c\uc801\uc778 \ubc29\ubc95\uc774 \ube44\uad00\uc801 \ub77d, \ub099\uad00\uc801 \ub77d, \ubd84\uc0b0 \ub77d\uc774\ub2e4. \uac01 \ubc29\uc2dd\uc740 \ub3d9\uc2dc \uc811\uadfc\uc744 \uc81c\uc5b4\ud558\ub294 \uc704\uce58\uc640 \uc804\ub7b5\uc774 [&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-2751","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\/2751","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=2751"}],"version-history":[{"count":1,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts\/2751\/revisions"}],"predecessor-version":[{"id":2752,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=\/wp\/v2\/posts\/2751\/revisions\/2752"}],"wp:attachment":[{"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wayhope.kro.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}