{"id":51648,"date":"2024-08-15T03:30:50","date_gmt":"2024-08-14T18:30:50","guid":{"rendered":"https:\/\/m9js.shop\/blog\/development\/how-to-troubleshoot-mysql-server-overload-and-improve-performance"},"modified":"2024-08-15T03:30:50","modified_gmt":"2024-08-14T18:30:50","slug":"how-to-troubleshoot-mysql-server-overload-and-improve-performance","status":"publish","type":"post","link":"https:\/\/m9js.shop\/blog\/development\/how-to-troubleshoot-mysql-server-overload-and-improve-performance","title":{"rendered":"MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \ubb38\uc81c \ud574\uacb0\uacfc \uc131\ub2a5 \ud5a5\uc0c1 \ubc29\ubc95"},"content":{"rendered":"<ul class=\"toc_post_list\">\n<li>\n<h2>\ubaa9\ucc28<\/h2>\n<ul>\n<li><a href=\"#mysql-%ec%84%9c%eb%b2%84%ec%9d%98-%ea%b3%bc%eb%b6%80%ed%95%98-%eb%ac%b8%ec%a0%9c-%ed%95%b4%ea%b2%b0%ea%b3%bc-%ec%84%b1%eb%8a%a5-%ed%96%a5%ec%83%81-%eb%b0%a9%eb%b2%95-hTOisjfsGM\">MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \ubb38\uc81c \ud574\uacb0\uacfc \uc131\ub2a5 \ud5a5\uc0c1 \ubc29\ubc95<\/a><\/li>\n<li><a href=\"#1-mysql-%ec%84%9c%eb%b2%84%ec%9d%98-%ea%b3%bc%eb%b6%80%ed%95%98-%ec%9b%90%ec%9d%b8-%eb%b6%84%ec%84%9d-hTOisjfsGM\">1. MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \uc6d0\uc778 \ubd84\uc11d<\/a><\/li>\n<li><a href=\"#2-%ec%bf%bc%eb%a6%ac-%ec%b5%9c%ec%a0%81%ed%99%94-%ea%b8%b0%eb%b2%95-hTOisjfsGM\">2. \ucffc\ub9ac \ucd5c\uc801\ud654 \uae30\ubc95<\/a><\/li>\n<li><a href=\"#3-%ed%95%98%eb%93%9c%ec%9b%a8%ec%96%b4-%ec%9e%90%ec%9b%90-%ea%b4%80%eb%a6%ac-hTOisjfsGM\">3. \ud558\ub4dc\uc6e8\uc5b4 \uc790\uc6d0 \uad00\ub9ac<\/a><\/li>\n<li><a href=\"#4-%eb%8d%b0%ec%9d%b4%ed%84%b0%eb%b2%a0%ec%9d%b4%ec%8a%a4-%ec%84%a4%ea%b3%84-%ec%b5%9c%ec%a0%81%ed%99%94-hTOisjfsGM\">4. \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc124\uacc4 \ucd5c\uc801\ud654<\/a><\/li>\n<li><a href=\"#5-mysql-%ec%84%a4%ec%a0%95-%ec%b5%9c%ec%a0%81%ed%99%94-hTOisjfsGM\">5. MySQL \uc124\uc815 \ucd5c\uc801\ud654<\/a><\/li>\n<li><a href=\"#6-%eb%aa%a8%eb%8b%88%ed%84%b0%eb%a7%81-%eb%b0%8f-%ec%84%b1%eb%8a%a5-%eb%b6%84%ec%84%9d-hTOisjfsGM\">6. \ubaa8\ub2c8\ud130\ub9c1 \ubc0f \uc131\ub2a5 \ubd84\uc11d<\/a><\/li>\n<li><a href=\"#7-%eb%b0%b1%ec%97%85-%eb%b0%8f-%eb%b3%b5%ea%b5%ac-%ec%a0%84%eb%9e%b5-hTOisjfsGM\">7. \ubc31\uc5c5 \ubc0f \ubcf5\uad6c \uc804\ub7b5<\/a><\/li>\n<li><a href=\"#8-%ea%b2%b0%eb%a1%a0-%eb%b0%8f-%ec%9a%94%ec%95%bd-hTOisjfsGM\">8. \uacb0\ub860 \ubc0f \uc694\uc57d<\/a><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h1 id=\"mysql-%ec%84%9c%eb%b2%84%ec%9d%98-%ea%b3%bc%eb%b6%80%ed%95%98-%eb%ac%b8%ec%a0%9c-%ed%95%b4%ea%b2%b0%ea%b3%bc-%ec%84%b1%eb%8a%a5-%ed%96%a5%ec%83%81-%eb%b0%a9%eb%b2%95-hTOisjfsGM\">MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \ubb38\uc81c \ud574\uacb0\uacfc \uc131\ub2a5 \ud5a5\uc0c1 \ubc29\ubc95<\/h1>\n<p>MySQL\uc740 \uc138\uacc4\uc5d0\uc11c \uac00\uc7a5 \ub110\ub9ac \uc0ac\uc6a9\ub418\ub294 \uc624\ud508 \uc18c\uc2a4 \uad00\uacc4\ud615 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uad00\ub9ac \uc2dc\uc2a4\ud15c(RDBMS) \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub9ce\uc740 \uc0ac\uc6a9\uc790\ub4e4\uc774 MySQL \uc11c\ubc84\uc758 \uc131\ub2a5 \uc800\ud558\uc640 \uacfc\ubd80\ud558 \ubb38\uc81c\ub97c \uacbd\ud5d8\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubb38\uc81c\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \ud6a8\uc728\uc131\uc744 \ub5a8\uc5b4\ub728\ub9ac\uace0, \uacb0\uacfc\uc801\uc73c\ub85c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc131\ub2a5\uc5d0\ub3c4 \uc545\uc601\ud5a5\uc744 \ubbf8\uce60 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubcf8 \uae00\uc5d0\uc11c\ub294 MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uace0 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud55c \ub2e4\uc591\ud55c \ubc29\ubc95\uc744 \ub2e4\ub8f0 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h2 id=\"1-mysql-%ec%84%9c%eb%b2%84%ec%9d%98-%ea%b3%bc%eb%b6%80%ed%95%98-%ec%9b%90%ec%9d%b8-%eb%b6%84%ec%84%9d-hTOisjfsGM\">1. MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \uc6d0\uc778 \ubd84\uc11d<\/h2>\n<p>MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558\ub294 \uc5ec\ub7ec \uac00\uc9c0 \uc6d0\uc778\uc73c\ub85c \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 \uc8fc\uc694 \uc6d0\uc778\ub4e4\uc744 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uccab\uc9f8, \ucffc\ub9ac \uc131\ub2a5\uc774 \uc800\ud558\ub418\ub294 \uacbd\uc6b0\uc785\ub2c8\ub2e4. \ube44\ud6a8\uc728\uc801\uc778 \ucffc\ub9ac\ub294 \uc11c\ubc84\uc5d0 \ubd88\ud544\uc694\ud55c \ubd80\ud558\ub97c \uc8fc\uba70, \uc774\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uc751\ub2f5 \uc18d\ub3c4\ub97c \ub2a6\ucd94\uace0, \uacb0\uad6d \uc0ac\uc6a9\uc790 \uacbd\ud5d8\uc5d0 \uc545\uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc778\ub371\uc2a4\uac00 \uc5c6\ub294 \ud14c\uc774\ube14\uc5d0\uc11c \ub300\ub7c9\uc758 \ub370\uc774\ud130\ub97c \uac80\uc0c9\ud558\ub294 \ucffc\ub9ac\ub294 \ub9e4\uc6b0 \ub290\ub9b4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub458\uc9f8, \ud558\ub4dc\uc6e8\uc5b4 \uc790\uc6d0\uc758 \ubd80\uc871\uc785\ub2c8\ub2e4. CPU, \uba54\ubaa8\ub9ac, \ub514\uc2a4\ud06c I\/O \ub4f1\uc758 \uc790\uc6d0\uc774 \ubd80\uc871\ud558\uba74 MySQL \uc11c\ubc84\ub294 \uacfc\ubd80\ud558 \uc0c1\ud0dc\uc5d0 \ube60\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud2b9\ud788, \uba54\ubaa8\ub9ac\uac00 \ubd80\uc871\ud558\uba74 \ub514\uc2a4\ud06c \uc2a4\uc640\ud551\uc774 \ubc1c\uc0dd\ud558\uc5ec \uc131\ub2a5\uc774 \uae09\uaca9\ud788 \uc800\ud558\ub429\ub2c8\ub2e4.<\/p>\n<p>\uc14b\uc9f8, \ub3d9\uc2dc \uc811\uc18d\uc790 \uc218\uc758 \uc99d\uac00\uc785\ub2c8\ub2e4. \uc0ac\uc6a9\uc790\uac00 \ub9ce\uc544\uc9c8\uc218\ub85d MySQL \uc11c\ubc84\ub294 \ub354 \ub9ce\uc740 \uc694\uccad\uc744 \ucc98\ub9ac\ud574\uc57c \ud558\uba70, \uc774\ub85c \uc778\ud574 \uacfc\ubd80\ud558\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc1fc\ud551\ubab0\uacfc \uac19\uc740 \uc6f9\uc0ac\uc774\ud2b8\uc5d0\uc11c \uc138\uc77c \uae30\uac04 \ub3d9\uc548 \ub3d9\uc2dc \uc811\uc18d\uc790\uac00 \uae09\uc99d\ud558\uba74 \uc11c\ubc84\uac00 \uc774\ub97c \ucc98\ub9ac\ud558\uc9c0 \ubabb\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub137\uc9f8, \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc124\uacc4\uc758 \ube44\ud6a8\uc728\uc131\uc785\ub2c8\ub2e4. \uc815\uaddc\ud654\uac00 \uc9c0\ub098\uce58\uac8c \uc774\ub8e8\uc5b4\uc9c0\uac70\ub098, \ubc18\ub300\ub85c \ube44\uc815\uaddc\ud654\uac00 \ud544\uc694\ud560 \ub54c \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc131\ub2a5\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc124\uacc4 \ubb38\uc81c\ub294 \ucffc\ub9ac \uc131\ub2a5\uc5d0 \uc9c1\uc811\uc801\uc778 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4.<\/p>\n<p>\ub9c8\uc9c0\ub9c9\uc73c\ub85c, MySQL \uc124\uc815\uc758 \ubd80\uc801\uc808\ud568\uc785\ub2c8\ub2e4. \uae30\ubcf8 \uc124\uc815\uc73c\ub85c \uc6b4\uc601\ud558\ub294 \uacbd\uc6b0, \ud2b9\uc815 \ud658\uacbd\uc5d0 \ucd5c\uc801\ud654\ub418\uc9c0 \uc54a\uc544 \uc131\ub2a5\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, InnoDB \ubc84\ud37c \ud480 \ud06c\uae30\uac00 \ub108\ubb34 \uc791\uc73c\uba74 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc131\ub2a5\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2 id=\"2-%ec%bf%bc%eb%a6%ac-%ec%b5%9c%ec%a0%81%ed%99%94-%ea%b8%b0%eb%b2%95-hTOisjfsGM\">2. \ucffc\ub9ac \ucd5c\uc801\ud654 \uae30\ubc95<\/h2>\n<p>\ucffc\ub9ac \ucd5c\uc801\ud654\ub294 MySQL \uc131\ub2a5 \ud5a5\uc0c1\uc758 \ud575\uc2ec \uc694\uc18c \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 \ucffc\ub9ac\ub97c \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \ub2e4\uc591\ud55c \uae30\ubc95\uc744 \uc18c\uac1c\ud569\ub2c8\ub2e4.<\/p>\n<p>\uccab\uc9f8, \uc778\ub371\uc2a4\ub97c \ud65c\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc778\ub371\uc2a4\ub294 \ub370\uc774\ud130 \uac80\uc0c9 \uc18d\ub3c4\ub97c \ud06c\uac8c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ub2e4\uc74c\uacfc \uac19\uc740 \ucffc\ub9ac\uc5d0\uc11c \uc778\ub371\uc2a4\ub97c \ucd94\uac00\ud558\uba74 \uc131\ub2a5\uc774 \uac1c\uc120\ub429\ub2c8\ub2e4.<\/p>\n<pre><code>CREATE INDEX idx_name ON users(name);<\/code><\/pre>\n<p>\ub458\uc9f8, \ucffc\ub9ac \uc2e4\ud589 \uacc4\ud68d\uc744 \ubd84\uc11d\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. MySQL\uc758 EXPLAIN \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ucffc\ub9ac \uc2e4\ud589 \uacc4\ud68d\uc744 \ud655\uc778\ud558\uace0, \ube44\ud6a8\uc728\uc801\uc778 \ubd80\ubd84\uc744 \ucc3e\uc544 \uac1c\uc120\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4:<\/p>\n<pre><code>EXPLAIN SELECT * FROM users WHERE name = 'John';<\/code><\/pre>\n<p>\uc14b\uc9f8, \uc11c\ube0c\ucffc\ub9ac \ub300\uc2e0 \uc870\uc778\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc11c\ube0c\ucffc\ub9ac\ub294 \uc131\ub2a5\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc73c\ubbc0\ub85c, \uac00\ub2a5\ud55c \uacbd\uc6b0 \uc870\uc778\uc73c\ub85c \ub300\uccb4\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub137\uc9f8, \ubd88\ud544\uc694\ud55c \ub370\uc774\ud130 \uc870\ud68c\ub97c \ud53c\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. SELECT * \ub300\uc2e0 \ud544\uc694\ud55c \uceec\ub7fc\ub9cc \uc120\ud0dd\ud558\uc5ec \ub370\uc774\ud130 \uc804\uc1a1\ub7c9\uc744 \uc904\uc774\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub2e4\uc12f\uc9f8, LIMIT \uc808\uc744 \uc0ac\uc6a9\ud558\uc5ec \uacb0\uacfc \uc9d1\ud569\uc758 \ud06c\uae30\ub97c \uc81c\ud55c\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ub300\ub7c9\uc758 \ub370\uc774\ud130\ub97c \ud55c \ubc88\uc5d0 \uc870\ud68c\ud558\ub294 \uac83\ubcf4\ub2e4 \ud544\uc694\ud55c \ub9cc\ud07c\ub9cc \uc870\ud68c\ud558\ub294 \uac83\uc774 \uc131\ub2a5\uc5d0 \uc720\ub9ac\ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"3-%ed%95%98%eb%93%9c%ec%9b%a8%ec%96%b4-%ec%9e%90%ec%9b%90-%ea%b4%80%eb%a6%ac-hTOisjfsGM\">3. \ud558\ub4dc\uc6e8\uc5b4 \uc790\uc6d0 \uad00\ub9ac<\/h2>\n<p>MySQL \uc11c\ubc84\uc758 \uc131\ub2a5\uc740 \ud558\ub4dc\uc6e8\uc5b4 \uc790\uc6d0\uc5d0 \ud06c\uac8c \uc758\uc874\ud569\ub2c8\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 \ud558\ub4dc\uc6e8\uc5b4 \uc790\uc6d0\uc744 \ud6a8\uc728\uc801\uc73c\ub85c \uad00\ub9ac\ud558\ub294 \ubc29\ubc95\uc744 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n<p>\uccab\uc9f8, \uba54\ubaa8\ub9ac \uc6a9\ub7c9\uc744 \ub298\ub9ac\ub294 \uac83\uc785\ub2c8\ub2e4. MySQL\uc740 \uba54\ubaa8\ub9ac\ub97c \ub9ce\uc774 \uc0ac\uc6a9\ud558\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc774\ubbc0\ub85c, \ucda9\ubd84\ud55c \uba54\ubaa8\ub9ac\ub97c \ud655\ubcf4\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, InnoDB \ubc84\ud37c \ud480 \ud06c\uae30\ub97c \ub298\ub824 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<pre><code>SET GLOBAL innodb_buffer_pool_size = 2 * 1024 * 1024 * 1024; -- 2GB<\/code><\/pre>\n<p>\ub458\uc9f8, SSD\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. SSD\ub294 HDD\ubcf4\ub2e4 \ud6e8\uc52c \ube60\ub978 \uc77d\uae30\/\uc4f0\uae30 \uc18d\ub3c4\ub97c \uc81c\uacf5\ud558\ubbc0\ub85c, \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc131\ub2a5\uc744 \ud06c\uac8c \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc14b\uc9f8, CPU \ucf54\uc5b4 \uc218\ub97c \ub298\ub9ac\ub294 \uac83\uc785\ub2c8\ub2e4. MySQL\uc740 \uba40\ud2f0\uc2a4\ub808\ub4dc \ud658\uacbd\uc5d0\uc11c \uc798 \uc791\ub3d9\ud558\ubbc0\ub85c, \ub354 \ub9ce\uc740 \ucf54\uc5b4\ub97c \uac00\uc9c4 CPU\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub137\uc9f8, \ub124\ud2b8\uc6cc\ud06c \ub300\uc5ed\ud3ed\uc744 \ud655\ubcf4\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc640 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc11c\ubc84 \uac04\uc758 \ub124\ud2b8\uc6cc\ud06c \uc18d\ub3c4\uac00 \ub290\ub9ac\uba74 \uc131\ub2a5\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc73c\ubbc0\ub85c, \ucda9\ubd84\ud55c \ub300\uc5ed\ud3ed\uc744 \ud655\ubcf4\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"4-%eb%8d%b0%ec%9d%b4%ed%84%b0%eb%b2%a0%ec%9d%b4%ec%8a%a4-%ec%84%a4%ea%b3%84-%ec%b5%9c%ec%a0%81%ed%99%94-hTOisjfsGM\">4. \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc124\uacc4 \ucd5c\uc801\ud654<\/h2>\n<p>\ud6a8\uc728\uc801\uc778 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc124\uacc4\ub294 MySQL \uc131\ub2a5\uc5d0 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce69\ub2c8\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc124\uacc4\ub97c \ucd5c\uc801\ud654\ud558\uae30 \uc704\ud55c \ubc29\ubc95\uc744 \uc18c\uac1c\ud569\ub2c8\ub2e4.<\/p>\n<p>\uccab\uc9f8, \uc815\uaddc\ud654\ub97c \uc801\uc808\ud788 \uc218\ud589\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc815\uaddc\ud654\ub294 \ub370\uc774\ud130 \uc911\ubcf5\uc744 \uc904\uc774\uace0 \ubb34\uacb0\uc131\uc744 \ub192\uc774\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub429\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \uc9c0\ub098\uce58\uac8c \uc815\uaddc\ud654\ud558\uba74 \ucffc\ub9ac\uac00 \ubcf5\uc7a1\ud574\uc9c8 \uc218 \uc788\uc73c\ubbc0\ub85c \uc801\uc808\ud55c \uc218\uc900\uc5d0\uc11c \uc815\uaddc\ud654\ub97c \uc720\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<p>\ub458\uc9f8, \ube44\uc815\uaddc\ud654\ub97c \uace0\ub824\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ud2b9\uc815 \uc0c1\ud669\uc5d0\uc11c\ub294 \ube44\uc815\uaddc\ud654\uac00 \uc131\ub2a5 \ud5a5\uc0c1\uc5d0 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc790\uc8fc \uc870\ud68c\ub418\ub294 \ub370\uc774\ud130\ub97c \ud55c \ud14c\uc774\ube14\uc5d0 \ud1b5\ud569\ud558\uc5ec \uc870\ud68c \uc131\ub2a5\uc744 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc14b\uc9f8, \ud30c\ud2f0\uc154\ub2dd\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ub300\ub7c9\uc758 \ub370\uc774\ud130\ub97c \ucc98\ub9ac\ud560 \ub54c \ud30c\ud2f0\uc154\ub2dd\uc744 \ud1b5\ud574 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ub0a0\uc9dc\ubcc4\ub85c \ub370\uc774\ud130\ub97c \ud30c\ud2f0\uc154\ub2dd\ud558\uba74 \ud2b9\uc815 \uae30\uac04\uc758 \ub370\uc774\ud130\ub9cc \uc870\ud68c\ud560 \ub54c \uc131\ub2a5\uc774 \uac1c\uc120\ub429\ub2c8\ub2e4.<\/p>\n<h2 id=\"5-mysql-%ec%84%a4%ec%a0%95-%ec%b5%9c%ec%a0%81%ed%99%94-hTOisjfsGM\">5. MySQL \uc124\uc815 \ucd5c\uc801\ud654<\/h2>\n<p>MySQL\uc758 \uae30\ubcf8 \uc124\uc815\uc740 \ubaa8\ub4e0 \ud658\uacbd\uc5d0 \ucd5c\uc801\ud654\ub418\uc5b4 \uc788\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 MySQL \uc124\uc815\uc744 \ucd5c\uc801\ud654\ud558\ub294 \ubc29\ubc95\uc744 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n<p>\uccab\uc9f8, innodb_buffer_pool_size\ub97c \uc870\uc815\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774 \uac12\uc740 InnoDB \uc2a4\ud1a0\ub9ac\uc9c0 \uc5d4\uc9c4\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \uba54\ubaa8\ub9ac \uc591\uc744 \uacb0\uc815\ud569\ub2c8\ub2e4. \uc77c\ubc18\uc801\uc73c\ub85c \uc774 \uac12\uc744 \uc2dc\uc2a4\ud15c \uba54\ubaa8\ub9ac\uc758 70-80%\ub85c \uc124\uc815\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n<pre><code>SET GLOBAL innodb_buffer_pool_size = 8 * 1024 * 1024 * 1024; -- 8GB<\/code><\/pre>\n<p>\ub458\uc9f8, max_connections \uac12\uc744 \uc870\uc815\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774 \uac12\uc740 \ub3d9\uc2dc\uc5d0 \uc5f0\uacb0\ud560 \uc218 \uc788\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8 \uc218\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4. \uc0ac\uc6a9\uc790\uc758 \uc218\uc5d0 \ub530\ub77c \uc801\uc808\ud55c \uac12\uc744 \uc124\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<pre><code>SET GLOBAL max_connections = 200;<\/code><\/pre>\n<p>\uc14b\uc9f8, query_cache_size\ub97c \uc870\uc815\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ucffc\ub9ac \uce90\uc2dc\ub294 \ubc18\ubcf5\uc801\uc73c\ub85c \uc2e4\ud589\ub418\ub294 \ucffc\ub9ac\uc758 \uacb0\uacfc\ub97c \uc800\uc7a5\ud558\uc5ec \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub108\ubb34 \ud070 \uac12\uc744 \uc124\uc815\ud558\uba74 \uc624\ud788\ub824 \uc131\ub2a5\uc774 \uc800\ud558\ub420 \uc218 \uc788\uc73c\ubbc0\ub85c \uc801\uc808\ud55c \uac12\uc744 \uc124\uc815\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"6-%eb%aa%a8%eb%8b%88%ed%84%b0%eb%a7%81-%eb%b0%8f-%ec%84%b1%eb%8a%a5-%eb%b6%84%ec%84%9d-hTOisjfsGM\">6. \ubaa8\ub2c8\ud130\ub9c1 \ubc0f \uc131\ub2a5 \ubd84\uc11d<\/h2>\n<p>MySQL \uc11c\ubc84\uc758 \uc131\ub2a5\uc744 \uc9c0\uc18d\uc801\uc73c\ub85c \ubaa8\ub2c8\ud130\ub9c1\ud558\uace0 \ubd84\uc11d\ud558\ub294 \uac83\uc740 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 \ubaa8\ub2c8\ud130\ub9c1 \ubc0f \uc131\ub2a5 \ubd84\uc11d \ub3c4\uad6c\ub97c \uc18c\uac1c\ud569\ub2c8\ub2e4.<\/p>\n<p>\uccab\uc9f8, MySQL Workbench\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. MySQL Workbench\ub294 \ucffc\ub9ac \uc131\ub2a5\uc744 \ubd84\uc11d\ud558\uace0 \uc2dc\uac01\ud654\ud560 \uc218 \uc788\ub294 \uac15\ub825\ud55c \ub3c4\uad6c\uc785\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ucffc\ub9ac \uc2e4\ud589 \uacc4\ud68d\uc744 \uc27d\uac8c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub458\uc9f8, Percona Toolkit\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. Percona Toolkit\uc740 MySQL \uc11c\ubc84\uc758 \uc131\ub2a5\uc744 \ubaa8\ub2c8\ud130\ub9c1\ud558\uace0 \ucd5c\uc801\ud654\ud558\ub294 \ub370 \uc720\uc6a9\ud55c \ub3c4\uad6c\uc785\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ucffc\ub9ac \uc131\ub2a5\uc744 \ubd84\uc11d\ud558\uace0 \uc778\ub371\uc2a4\ub97c \ucd5c\uc801\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc14b\uc9f8, Grafana\uc640 Prometheus\ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774 \ub450 \ub3c4\uad6c\ub294 MySQL \uc11c\ubc84\uc758 \uba54\ud2b8\ub9ad\uc744 \uc2dc\uac01\ud654\ud558\uace0 \ubaa8\ub2c8\ud130\ub9c1\ud558\ub294 \ub370 \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \uc2e4\uc2dc\uac04\uc73c\ub85c \uc11c\ubc84 \uc0c1\ud0dc\ub97c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<h2 id=\"7-%eb%b0%b1%ec%97%85-%eb%b0%8f-%eb%b3%b5%ea%b5%ac-%ec%a0%84%eb%9e%b5-hTOisjfsGM\">7. \ubc31\uc5c5 \ubc0f \ubcf5\uad6c \uc804\ub7b5<\/h2>\n<p>MySQL \uc11c\ubc84\uc758 \uc548\uc815\uc131\uc744 \ub192\uc774\uae30 \uc704\ud574\uc11c\ub294 \ubc31\uc5c5 \ubc0f \ubcf5\uad6c \uc804\ub7b5\uc774 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \uc774 \uc139\uc158\uc5d0\uc11c\ub294 \ud6a8\uacfc\uc801\uc778 \ubc31\uc5c5 \ubc0f \ubcf5\uad6c \uc804\ub7b5\uc744 \uc18c\uac1c\ud569\ub2c8\ub2e4.<\/p>\n<p>\uccab\uc9f8, \uc815\uae30\uc801\uc778 \ubc31\uc5c5\uc744 \uc218\ud589\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ub370\uc774\ud130 \uc190\uc2e4\uc744 \ubc29\uc9c0\ud558\uae30 \uc704\ud574 \uc815\uae30\uc801\uc73c\ub85c \ubc31\uc5c5\uc744 \uc218\ud589\ud574\uc57c \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, mysqldump \uba85\ub839\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc5ec \ubc31\uc5c5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<pre><code>mysqldump -u username -p database_name &gt; backup.sql<\/code><\/pre>\n<p>\ub458\uc9f8, \uc774\uc911\ud654 \uc2dc\uc2a4\ud15c\uc744 \uad6c\ucd95\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ub9c8\uc2a4\ud130-\uc2ac\ub808\uc774\ube0c \uad6c\uc870\ub97c \ud1b5\ud574 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uac00\uc6a9\uc131\uc744 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub9c8\uc2a4\ud130 \uc11c\ubc84\uc5d0 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud574\ub3c4 \uc2ac\ub808\uc774\ube0c \uc11c\ubc84\uc5d0\uc11c \uc11c\ube44\uc2a4\ub97c \uacc4\uc18d \uc81c\uacf5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\uc14b\uc9f8, \ubcf5\uad6c \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \ubc31\uc5c5\uc774 \uc81c\ub300\ub85c \uc791\ub3d9\ud558\ub294\uc9c0 \ud655\uc778\ud558\uae30 \uc704\ud574 \uc815\uae30\uc801\uc73c\ub85c \ubcf5\uad6c \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2 id=\"8-%ea%b2%b0%eb%a1%a0-%eb%b0%8f-%ec%9a%94%ec%95%bd-hTOisjfsGM\">8. \uacb0\ub860 \ubc0f \uc694\uc57d<\/h2>\n<p>MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \ubb38\uc81c\ub294 \ub2e4\uc591\ud55c \uc6d0\uc778\uc73c\ub85c \ubc1c\uc0dd\ud560 \uc218 \uc788\uc73c\uba70, \uc774\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud574\uc11c\ub294 \uc5ec\ub7ec \uac00\uc9c0 \uc811\uadfc \ubc29\uc2dd\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \ubcf8 \uae00\uc5d0\uc11c\ub294 \ucffc\ub9ac \ucd5c\uc801\ud654, \ud558\ub4dc\uc6e8\uc5b4 \uc790\uc6d0 \uad00\ub9ac, \ub370\uc774\ud130\ubca0\uc774\uc2a4 \uc124\uacc4 \ucd5c\uc801\ud654, MySQL \uc124\uc815 \ucd5c\uc801\ud654, \ubaa8\ub2c8\ud130\ub9c1 \ubc0f \uc131\ub2a5 \ubd84\uc11d, \ubc31\uc5c5 \ubc0f \ubcf5\uad6c \uc804\ub7b5 \ub4f1 \ub2e4\uc591\ud55c \ubc29\ubc95\uc744 \ub2e4\ub8e8\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n<p>MySQL \uc11c\ubc84\uc758 \uc131\ub2a5 \ud5a5\uc0c1\uc744 \uc704\ud574\uc11c\ub294 \uc9c0\uc18d\uc801\uc778 \ubaa8\ub2c8\ud130\ub9c1\uacfc \ubd84\uc11d\uc774 \ud544\uc694\ud558\uba70, \ud544\uc694\uc5d0 \ub530\ub77c \uc801\uc808\ud55c \uc870\uce58\ub97c \ucde8\ud574\uc57c \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub178\ub825\uc744 \ud1b5\ud574 MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uace0 \uc548\uc815\uc801\uc778 \uc11c\ube44\uc2a4\ub97c \uc81c\uacf5\ud560 \uc218 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ubaa9\ucc28 MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \ubb38\uc81c \ud574\uacb0\uacfc \uc131\ub2a5 \ud5a5\uc0c1 \ubc29\ubc95 1. MySQL \uc11c\ubc84\uc758 \uacfc\ubd80\ud558 \uc6d0\uc778 \ubd84\uc11d [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":51563,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1957],"tags":[2100],"class_list":["post-51648","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-development","tag-mysql"],"acf":[],"_links":{"self":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/51648","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/comments?post=51648"}],"version-history":[{"count":0,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/51648\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media\/51563"}],"wp:attachment":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media?parent=51648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/categories?post=51648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/tags?post=51648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}