{"id":1678,"date":"2014-12-16T19:38:48","date_gmt":"2014-12-16T19:38:47","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/?p=1678"},"modified":"2017-05-03T10:04:44","modified_gmt":"2017-05-03T17:04:44","slug":"maintaining-set-memcached","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/ko\/maintaining-set-memcached\/","title":{"rendered":"\uba64\uce90\uc2dc\ub4dc\uc5d0\uc11c \uc138\ud2b8 \uc720\uc9c0 \uad00\ub9ac"},"content":{"rendered":"<div id=\"post\">\n<p><span style=\"color: #c0c0c0;\"><em>[\uc774 \uac8c\uc2dc\ubb3c\uc740 \ub2e4\uc74c\uc5d0\ub3c4 \ud45c\uc2dc\ub429\ub2c8\ub2e4. <\/em><\/span><em><a href=\"https:\/\/dustin.github.com\/2011\/02\/17\/memcached-set.html\"><span style=\"color: #c0c0c0;\">Dustin\uc758 \uae43\ud5c8\ube0c \ube14\ub85c\uadf8<\/span><\/a><\/em><span style=\"color: #c0c0c0;\"><em>].<\/em><\/span><\/p>\n<p>\uc774 \ubb38\uc81c\ub294 \uac00\ub054\uc529 \ubc1c\uc0dd\ud558\ub294 \ubb38\uc81c\uc785\ub2c8\ub2e4. <img decoding=\"async\" class=\"floatright\" title=\"\uc624\ub798\ub41c \uad70\uc0ac \uae30\ub85d \ubcf4\uad00\uc18c\uc5d0\uc11c \uc774 \uc0ac\uc9c4\uc744 \ubc1c\uacac\ud588\uc2b5\ub2c8\ub2e4.\" src=\"https:\/\/dustin.github.com\/images\/simple.png\" alt=\"simple\" align=\"right\" hspace=\"15\" \/><br \/>\n\ub3d9\uc548. \uc800\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \ud569\ub9ac\uc801\uc774\ub77c\uace0 \uc0dd\uac01\ub418\ub294 \ubc29\ubc95\uc744 \uc124\uba85\ud558\uc9c0\ub9cc, \ub2e4\uc74c\uacfc \uac19\uc774 \uc124\uba85\ud55c \uc801\uc740 \uc5c6\ub294 \uac83 \uac19\uc2b5\ub2c8\ub2e4. <em>\uaf64<\/em> \ucda9\ubd84\ud569\ub2c8\ub2e4. \uc0ac\ub78c\ub4e4\uc740 \ubcf5\uc7a1\ud558\uac70\ub098 \ub290\ub9ac\ub2e4\uace0 \uc0dd\uac01\ud558\ub294 \uacbd\ud5a5\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc800\ub294 \uc5ec\uae30\uc11c \uadf8 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub824\uace0 \ub178\ub825\ud560 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h3>\uc81c\uc57d \uc870\uac74<\/h3>\n<p>\ucda9\ubd84\ud55c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc720\uc6a9\ud558\uac8c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub3c4\ub85d \ub2e4\uc74c\uacfc \uac19\uc740 \uac00\uc815 \ud558\uc5d0 \uc791\uc5c5\ud558\uaca0\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li>\uc11c\ubc84\ub85c\uc758 \uc655\ubcf5 \uc774\ub3d9\uc744 \ucd5c\uc18c\ud654\ud574\uc57c \ud569\ub2c8\ub2e4.<\/li>\n<li>O(1) \ucd94\uac00(\ud604\uc7ac \ud06c\uae30\uc640 \uc0c8\ub85c \ub4e4\uc5b4\uc624\ub294 \ud56d\ubaa9 \ubaa8\ub450\uc5d0 \ub300\ud574)<\/li>\n<li>O(1) \uc81c\uac70(\ud604\uc7ac \ud06c\uae30\uc640 \uc81c\uac70 \uc911\uc778 \ud56d\ubaa9 \ubaa8\ub450\uc5d0 \ub300\ud574)<\/li>\n<li>O(1) \uac00\uc838\uc624\uae30<\/li>\n<li>\uc7a0\uae08 \ubc0f \ub300\uae30 \ubb34\ub8cc<\/li>\n<li>\uac04\ud3b8\ud55c \uc0ac\uc6a9<\/li>\n<li>\uc774\ud574\ud558\uae30 \uc26c\uc6b4<\/li>\n<li>\uba85\uc2dc\uc801\uc778 \uc720\uc9c0 \uad00\ub9ac\uac00 \ud544\uc694\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uadf8\ub9ac\uace0 \ub2f9\uc5f0\ud788 \uc6f9 \uc2a4\ucf00\uc77c\uc774\uc5b4\uc57c \ud569\ub2c8\ub2e4!<\/p>\n<h3>\uc7ac\ub8cc<\/h3>\n<p>\uac1c\ub150\uc740 \uac04\ub2e8\ud558\uba70 \uc6d0\uc790\uc131\uc774 \ubcf4\uc7a5\ub418\ub294 \uc138 \uac00\uc9c0 \uba64\uce90\uc2dc\ub4dc \uc5f0\uc0b0\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc778\ub371\uc2a4\ub294 \ub2e4\uc74c\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc0dd\uc131\ub429\ub2c8\ub2e4. <code>\ucd94\uac00<\/code>. \uc774\uac83\uc740 \ub9e4\uc6b0 \ub2f9\uc5f0\ud55c \uc77c\uc785\ub2c8\ub2e4.<\/p>\n<p>\ud56d\ubaa9\uc744 \ucd94\uac00\ud558\uac70\ub098 \uc81c\uac70\ud574\uc57c \ud560 \ub54c\ub9c8\ub2e4 \ub2e4\uc74c\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. <code>\ucd94\uac00<\/code>. \uc774 \uae30\ub2a5\uc744 \uc0ac\uc6a9\ud558\ub824\uba74 \uc591\uc218 \ub610\ub294 \uc74c\uc218 \ud56d\ubaa9\uc744 \ub098\ud0c0\ub0b4\ub294 \ubc29\uc2dd\uc73c\ub85c \ud56d\ubaa9\uc744 \uc778\ucf54\ub529\ud574\uc57c \ud569\ub2c8\ub2e4. \uac04\ub2e8\ud55c \uc0d8\ud50c \uc778\ucf54\ub529\uc744 \ub9cc\ub4e4\uc5c8\uc2b5\ub2c8\ub2e4. <code>+\ud0a4<\/code> \uc758 \ucd94\uac00\ub97c \ub098\ud0c0\ub0b4\uae30 \uc704\ud574 <code>\ud0a4<\/code> \ub97c \uc138\ud2b8\uc5d0 \ucd94\uac00\ud558\uace0 <code>-\ud0a4<\/code> \uc758 \uc81c\uac70\ub97c \ub098\ud0c0\ub0b4\uae30 \uc704\ud574 <code>\ud0a4<\/code> \ub97c \uc124\uc815\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \uacf5\ubc31\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc5ec\ub7ec \ud56d\ubaa9\uc744 \uad6c\ubd84\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc608\uc2dc: <code>+a +b +c -b<\/code> \ub294 <code>{a, c}<\/code>. \ubb3c\ub860 \uc21c\uc11c\ub294 \uc911\uc694\ud569\ub2c8\ub2e4.<\/p>\n<p>\uba64\ubc84\uac00 \uc790\uc8fc \uc654\ub2e4 \uac14\ub2e4 \ud558\ub294 \uc138\ud2b8\ub294 \uc555\ucd95\ud574\uc57c \ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 \uc9d1\ud569\uc744 \ub2e4\uc2dc \uc778\ucf54\ub529\ud558\uace0 <code>cas<\/code> \ub97c \ucd94\uac00\ud558\uc5ec \ub2e4\ub978 \ud074\ub77c\uc774\uc5b8\ud2b8\ub97c \ubc1f\uc9c0 \uc54a\uace0 \ub2e4\uc2dc \ucd94\uac00\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4.<\/p>\n<h3>\uc548\ub0b4\ud574 \ub4dc\ub9bd\ub2c8\ub2e4<\/h3>\n<p>\uc774 \uc608\uc81c\uc5d0\uc11c\ub294 \ud30c\uc774\uc36c\uc744 \uc0ac\uc6a9\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\uc0c1\uc801\uc73c\ub85c\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uc11c \uad6c\ud604\ud558\uba74 \ubaa8\ub4e0 \uac83\uc774 \uc815\uc0c1\uc801\uc73c\ub85c \uc791\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n<p>\uba3c\uc800 \uc778\ucf54\ub354\uc640 \ub514\ucf54\ub354\uac00 \ud544\uc694\ud569\ub2c8\ub2e4. \uc0ac\uc2e4 \uc774 \ubd80\ubd84\uc774 \uac00\uc7a5 \uc5b4\ub824\uc6b4 \ubd80\ubd84\uc774\uba70, \uc54c\uace0 \ubcf4\uba74 \uc815\ub9d0 \uc0ac\uc18c\ud55c \ubd80\ubd84\uc785\ub2c8\ub2e4.<\/p>\n<h3>\uc778\ucf54\ub354<\/h3>\n<p>\uc138\ud2b8 \ub0b4\uc5d0\uc11c \uac00\uc7a5 \uae30\ubcf8\uc801\uc778 \ub370\uc774\ud130 \ud45c\ud604\ubd80\ud130 \uc2dc\uc791\ud569\ub2c8\ub2e4.<\/p>\n<div class=\"geshifilter\">\n<div class=\"python geshifilter-python\" style=\"font-family: monospace;\">\n<p><span style=\"color: #ff7700; font-weight: bold;\">def<\/span> encodeSet<span style=\"color: black;\">(<\/span>\ud0a4<span style=\"color: #66cc66;\">,<\/span> op<span style=\"color: #66cc66;\">=<\/span><span style=\"color: #483d8b;\">&#8216;+&#8217;<\/span><span style=\"color: black;\">)<\/span>:<br \/>\n<span style=\"color: #483d8b;\">\"\"\"\ud0a4 \uc9d1\ud569\uc744 \uc778\ucf54\ub529\ud558\uc5ec \uc9d1\ud569\uc744 \uc218\uc815\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p>&gt;&gt;&gt; encodeSet(['a', 'b', 'c'])<br \/>\n'+a +b +c '<br \/>\n&#8220;&#8221;&#8221;<br \/>\n<span style=\"color: #ff7700; font-weight: bold;\">\ubc18\ud658<\/span> <span style=\"color: #483d8b;\">&#8221;<\/span>.<span style=\"color: black;\">join<\/span><span style=\"color: black;\">(<\/span>OP + K + <span style=\"color: #483d8b;\">&#8216; &#8216;<\/span> <span style=\"color: #ff7700; font-weight: bold;\">\uc5d0 \ub300\ud55c<\/span> k <span style=\"color: #ff7700; font-weight: bold;\">in<\/span> \ud0a4<span style=\"color: black;\">)<\/span><\/p>\n<\/div>\n<\/div>\n<p>\uc774\uac83\uc740 \ucf54\ub4dc\ubcf4\ub2e4\ub294 \ubb38\uc11c\uc5d0 \uac00\uae5d\uc9c0\ub9cc \uaf64 \uba85\ud655\ud569\ub2c8\ub2e4. \ub300\uc2e0 JPEG \uc138\ud2b8\ub97c \uc6d0\ud55c\ub2e4\uba74 \uacf5\ubc31\uc73c\ub85c \uad6c\ubd84\ud558\ub294 \ub300\uc2e0 \uae38\uc774\uc640 \ubcf8\ubb38\uc73c\ub85c \uac04\ub2e8\ud55c \ubc14\uc774\ub108\ub9ac \uc778\ucf54\ub529\uc744 \ub9cc\ub4e4\uba74 \ub429\ub2c8\ub2e4.<\/p>\n<h3>\uc138\ud2b8 \uc218\uc815<\/h3>\n<p>\uc218\uc815\uc740 \ucd94\uac00\uc640 \uc81c\uac70\uc758 \uc720\uc77c\ud55c \ucc28\uc774\uc810\uc740 \uc778\ucf54\ub529 \uc5f0\uc0b0\uc774\ub77c\ub294 \uc810\ubfd0\uc785\ub2c8\ub2e4. \ub450 \uacbd\uc6b0 \ubaa8\ub450 \ub3d9\uc77c\ud55c \ucf54\ub4dc\ub97c \uc791\uc131\ud560 \uc218 \uc788\uae30 \ub54c\ubb38\uc5d0 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<div class=\"geshifilter\">\n<div class=\"python geshifilter-python\" style=\"font-family: monospace;\">\n<p><span style=\"color: #ff7700; font-weight: bold;\">def<\/span> \uc218\uc815<span style=\"color: black;\">(<\/span>mc<span style=\"color: #66cc66;\">,<\/span> \uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: #66cc66;\">,<\/span> op<span style=\"color: #66cc66;\">,<\/span> \ud0a4<span style=\"color: black;\">)<\/span>:<br \/>\n\uc778\ucf54\ub529 <span style=\"color: #66cc66;\">=<\/span> encodeSet<span style=\"color: black;\">(<\/span>\ud0a4<span style=\"color: #66cc66;\">,<\/span> op<span style=\"color: black;\">)<\/span><br \/>\n<span style=\"color: #ff7700; font-weight: bold;\">\uc2dc\ub3c4<\/span>:<br \/>\nmc.<span style=\"color: black;\">\ucd94\uac00<\/span><span style=\"color: black;\">(<\/span>\uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: #66cc66;\">,<\/span> \uc778\ucf54\ub529<span style=\"color: black;\">)<\/span><br \/>\n<span style=\"color: #ff7700; font-weight: bold;\">\uc608\uc678<\/span> <span style=\"color: #008000;\">\ud0a4 \uc624\ub958<\/span>:<br \/>\n<span style=\"color: #808080; font-style: italic;\"># \ucd94\uac00\ud560 \uc218 \uc5c6\ub294 \uacbd\uc6b0 \uc138\ud2b8\uc5d0 \ucd94\uac00\ud569\ub2c8\ub2e4,<\/span><br \/>\n<span style=\"color: #808080; font-style: italic;\"># \uc778\ub371\uc2a4\ub97c \uc0dd\uc131\ud558\ub824\uace0 \ud558\ubbc0\ub85c \uadf8\ub807\uac8c \ud558\uc138\uc694.<\/span><br \/>\n<span style=\"color: #ff7700; font-weight: bold;\">\ub9cc\uc57d<\/span> op <span style=\"color: #66cc66;\">==<\/span> <span style=\"color: #483d8b;\">&#8216;+&#8217;<\/span>:<br \/>\nmc.<span style=\"color: black;\">\ucd94\uac00<\/span><span style=\"color: black;\">(<\/span>\uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: #66cc66;\">,<\/span> \uc778\ucf54\ub529<span style=\"color: black;\">)<\/span><\/p>\n<p><span style=\"color: #ff7700; font-weight: bold;\">def<\/span> \ucd94\uac00<span style=\"color: black;\">(<\/span>mc<span style=\"color: #66cc66;\">,<\/span> \uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: #66cc66;\">,<\/span> *\ud0a4<span style=\"color: black;\">)<\/span>:<br \/>\n<span style=\"color: #483d8b;\">\"\"\"\uc8fc\uc5b4\uc9c4 \uc138\ud2b8\uc5d0 \uc8fc\uc5b4\uc9c4 \ud0a4\ub97c \ucd94\uac00\ud569\ub2c8\ub2e4.\"\"\"<\/span><br \/>\n\uc218\uc815<span style=\"color: black;\">(<\/span>mc<span style=\"color: #66cc66;\">,<\/span> \uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: #66cc66;\">,<\/span> <span style=\"color: #483d8b;\">&#8216;+&#8217;<\/span><span style=\"color: #66cc66;\">,<\/span> \ud0a4<span style=\"color: black;\">)<\/span><\/p>\n<p><span style=\"color: #ff7700; font-weight: bold;\">def<\/span> \uc81c\uac70<span style=\"color: black;\">(<\/span>mc<span style=\"color: #66cc66;\">,<\/span> \uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: #66cc66;\">,<\/span> *\ud0a4<span style=\"color: black;\">)<\/span>:<br \/>\n<span style=\"color: #483d8b;\">\"\"\"\uc8fc\uc5b4\uc9c4 \uc138\ud2b8\uc5d0\uc11c \uc8fc\uc5b4\uc9c4 \ud0a4\ub97c \uc81c\uac70\ud569\ub2c8\ub2e4.\"\"\"<\/span><br \/>\n\uc218\uc815<span style=\"color: black;\">(<\/span>mc<span style=\"color: #66cc66;\">,<\/span> \uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: #66cc66;\">,<\/span> <span style=\"color: #483d8b;\">&#8216;-&#8216;<\/span><span style=\"color: #66cc66;\">,<\/span> \ud0a4<span style=\"color: black;\">)<\/span><\/p>\n<\/div>\n<\/div>\n<p>\ub2e4\uc74c\uacfc \uac19\uc740 \ubd80\uc791\uc6a9\uc744 \ud5c8\uc6a9\ud569\ub2c8\ub2e4. <code>\ucd94\uac00<\/code> \ub97c \uc0ac\uc6a9\ud558\uc5ec \uc778\ub371\uc2a4\uac00 \uc5c6\ub294 \uacbd\uc6b0 \uc0dd\uc131\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc2e4\uc81c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c\ub294 0\uc774 \uc544\ub2cc \ud655\ub960\ub85c <code>\ucd94\uac00<\/code> \ud56d\ubaa9\uc774 \ub204\ub77d\ub418\uc5b4 \uc2e4\ud328\ud558\uace0 \ubc14\ub85c \ub4a4\uc5d0 \uc624\ub294 <code>\ucd94\uac00<\/code> \ub294 \uacbd\uc7c1 \uc870\uac74\uc73c\ub85c \uc778\ud574 \uc2e4\ud328\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc11c \ub2e4\ub8e8\uae30 \uc704\ud574 \ucf54\ub4dc\ub97c \uc791\uc131\ud558\uc9c0\ub294 \uc54a\uc558\uc9c0\ub9cc \uaf64 \uac04\ub2e8\ud569\ub2c8\ub2e4. \uc911\uc694\ud55c \uacbd\uc6b0 \ub458 \ub2e4 \uc2e4\ud328\ud558\ub294 \ud55c \uc804\uccb4 \uc218\uc815 \uba54\uc11c\ub4dc\ub97c \ubc18\ubcf5\ud558\uba74 \ub429\ub2c8\ub2e4. \ub450 \ubc88 \uc774\uc0c1 \uc2e4\ud328\ud558\ub3c4\ub85d \ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h3>\ub514\ucf54\ub354<\/h3>\n<p>\ub370\uc774\ud130\ub97c \uc0ac\uc6a9\ud558\ub824\uba74 \ub370\uc774\ud130\ub97c \ub514\ucf54\ub529\ud574\uc57c \ud558\ubbc0\ub85c \uc704\uc758 \uc778\ucf54\ub354\uac00 \uc218\ud589\ud558\ub294 \uc791\uc5c5(\ucd94\uac00 \ubc0f \uc81c\uac70\ub97c \uc704\ud55c \ucd94\uac00 \ud3ec\ud568)\uc744 \uc5ed\uc73c\ub85c \uc218\ud589\ud560 \uc218 \uc788\ub294 \ube60\ub978 \ub514\ucf54\ub354\ub97c \uc870\ud569\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<div class=\"geshifilter\">\n<div class=\"python geshifilter-python\" style=\"font-family: monospace;\">\n<p><span style=\"color: #ff7700; font-weight: bold;\">def<\/span> decodeSet<span style=\"color: black;\">(<\/span>\ub370\uc774\ud130<span style=\"color: black;\">)<\/span>:<br \/>\n<span style=\"color: #483d8b;\">\"\"\"\uce90\uc2dc\uc5d0\uc11c \uc138\ud2b8 \uc784\ud50c\ub85c \ud56d\ubaa9\uc744 \ub514\ucf54\ub529\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p>\ub354\ub7ec\uc6c0 \ud45c\uc2dc\uae30(\ub2e4\uc9d0 \ud78c\ud2b8)\uc640 \uc9d1\ud569\uc744 \ubc18\ud658\ud569\ub2c8\ub2e4.<\/p>\n<p>&gt;&gt;&gt; decodeSet('+a +b +c -b -x')<br \/>\n(2, set(['a', 'c']))<br \/>\n&#8220;&#8221;&#8221;<\/p>\n<p>\ud0a4 <span style=\"color: #66cc66;\">=<\/span> <span style=\"color: #008000;\">set<\/span><span style=\"color: black;\">(<\/span><span style=\"color: black;\">)<\/span><br \/>\n\ub354\ub7ec\uc6c0 <span style=\"color: #66cc66;\">=<\/span> <span style=\"color: #ff4500;\">0<\/span><br \/>\n<span style=\"color: #ff7700; font-weight: bold;\">\uc5d0 \ub300\ud55c<\/span> k <span style=\"color: #ff7700; font-weight: bold;\">in<\/span> \ub370\uc774\ud130.<span style=\"color: black;\">\ubd84\ud560<\/span><span style=\"color: black;\">(<\/span><span style=\"color: black;\">)<\/span>:<br \/>\nop<span style=\"color: #66cc66;\">,<\/span> \ud0a4 <span style=\"color: #66cc66;\">=<\/span> k<span style=\"color: black;\">[<\/span><span style=\"color: #ff4500;\">0<\/span><span style=\"color: black;\">]<\/span><span style=\"color: #66cc66;\">,<\/span> k<span style=\"color: black;\">[<\/span><span style=\"color: #ff4500;\">1<\/span>:<span style=\"color: black;\">]<\/span><br \/>\n<span style=\"color: #ff7700; font-weight: bold;\">\ub9cc\uc57d<\/span> op <span style=\"color: #66cc66;\">==<\/span> <span style=\"color: #483d8b;\">&#8216;+&#8217;<\/span>:<br \/>\n\ud0a4\ub97c \uc785\ub825\ud569\ub2c8\ub2e4.<span style=\"color: black;\">\ucd94\uac00<\/span><span style=\"color: black;\">(<\/span>\ud0a4<span style=\"color: black;\">)<\/span><br \/>\n<span style=\"color: #ff7700; font-weight: bold;\">elif<\/span> op <span style=\"color: #66cc66;\">==<\/span> <span style=\"color: #483d8b;\">&#8216;-&#8216;<\/span>:<br \/>\n\ud0a4\ub97c \uc785\ub825\ud569\ub2c8\ub2e4.<span style=\"color: black;\">\ud3d0\uae30<\/span><span style=\"color: black;\">(<\/span>\ud0a4<span style=\"color: black;\">)<\/span><br \/>\n\ub354\ub7ec\uc6c0 +<span style=\"color: #66cc66;\">=<\/span> <span style=\"color: #ff4500;\">1<\/span><\/p>\n<p><span style=\"color: #ff7700; font-weight: bold;\">\ubc18\ud658<\/span> \ub354\ub7ec\uc6c0<span style=\"color: #66cc66;\">,<\/span> \ud0a4<\/p>\n<\/div>\n<\/div>\n<p>\uac00\uc7a5 \ubcf5\uc7a1\ud55c \ubd80\ubd84\uc785\ub2c8\ub2e4.<\/p>\n<h3>\ud56d\ubaa9 \uac80\uc0c9\ud558\uae30<\/h3>\n<p>\uc774\uc81c \ub370\uc774\ud130\ub97c \uc778\ucf54\ub529, \uc124\uc815 \ubc0f \uc218\uc815\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \uac80\uc0c9\uc740 \ub9e4\uc6b0 \uac04\ub2e8\ud569\ub2c8\ub2e4. \uae30\ubcf8 \ud328\uc2a4\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4:<\/p>\n<div class=\"geshifilter\">\n<div class=\"python geshifilter-python\" style=\"font-family: monospace;\">\n<p><span style=\"color: #ff7700; font-weight: bold;\">def<\/span> \ud56d\ubaa9<span style=\"color: black;\">(<\/span>mc<span style=\"color: #66cc66;\">,<\/span> \uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: black;\">)<\/span>:<br \/>\n<span style=\"color: #483d8b;\">\"\"\"\uc9d1\ud569\uc5d0\uc11c \ud604\uc7ac \uac12\uc744 \uac80\uc0c9\ud569\ub2c8\ub2e4.\"\"\"<\/span><\/p>\n<p>\ud50c\ub798\uadf8<span style=\"color: #66cc66;\">,<\/span> cas<span style=\"color: #66cc66;\">,<\/span> \ub370\uc774\ud130 <span style=\"color: #66cc66;\">=<\/span> mc.<span style=\"color: black;\">get<\/span><span style=\"color: black;\">(<\/span>\uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: black;\">)<\/span><br \/>\n\ub354\ub7ec\uc6c0<span style=\"color: #66cc66;\">,<\/span> \ud0a4 <span style=\"color: #66cc66;\">=<\/span> decodeSet<span style=\"color: black;\">(<\/span>\ub370\uc774\ud130<span style=\"color: black;\">)<\/span><br \/>\n<span style=\"color: #ff7700; font-weight: bold;\">\ubc18\ud658<\/span> \ud0a4<\/p>\n<\/div>\n<\/div>\n<p>\uc5ec\uae30\uae4c\uc9c0\uc785\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \uc9c0\uae08\uc774 \uc555\ucd95\uc744 \ud558\uae30\uc5d0 \uc544\uc8fc \uc88b\uc740 \uc2dc\uae30\uc785\ub2c8\ub2e4. <code>\ub354\ub7ec\uc6c0<\/code> \ub294 \uc138\ud2b8\uc5d0 \uc5bc\ub9c8\ub098 \ub9ce\uc740 \uc81c\uac70 \ud1a0\ud070\uc774 \uc788\ub294\uc9c0 \uce21\uc815\ud569\ub2c8\ub2e4. \ud1a0\ud070\uc774 \ub108\ubb34 \ub9ce\uc73c\uba74 \uc81c\uac70\ud569\ub2c8\ub2e4.<\/p>\n<p>\ub2e4\uc74c\uacfc \uac19\uc740 \uc0c1\ud669\uc744 \uc0c1\uc0c1\ud574 \ubcf4\uc138\uc694. <code>\ub354\ub7ec\uc6c0_\uc784\uacc4\uac12<\/code> \uc22b\uc790\ub97c \uc124\uc815\ud558\uc5ec \uc790\ub3d9 \uc555\ucd95\uc744 \uc218\ud589\ud560 \uc704\uce58\ub97c \uacb0\uc815\ud569\ub2c8\ub2e4. \uc774\ubcf4\ub2e4 \ub354 \ub9ce\uc740 \ub354\ud2f0\uac00 \uc788\uc73c\uba74 \uac80\uc0c9 \uc2dc \uc555\ucd95\ud569\ub2c8\ub2e4(\ub2e8\uc77c \uac00\uc838\uc624\uae30\ub97c \ub2e8\uc77c \uac00\uc838\uc624\uae30\uc640 \ub2e8\uc77c <code>CAS<\/code>.<\/p>\n<p>\uc774 \uc0ac\uc6a9 \uc0ac\ub840\uc758 \uacbd\uc6b0 \uc2e4\uc81c\ub85c\ub294 <code>CAS<\/code> \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0 \uc131\uacf5\ud558\uae30 \ub54c\ubb38\uc5d0 \uadf8\ub0e5 \uc2e4\ud589\ud558\uace0 \uc78a\uc5b4\ubc84\ub9bd\ub2c8\ub2e4. \uc548\uc804\ud558\uc9c0\ub9cc(\uc989, \ub370\uc774\ud130\uac00 \ud30c\uad34\ub418\uc9c0 \uc54a\uc74c) \uc791\ub3d9\uc774 \ubcf4\uc7a5\ub418\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<p>\ub530\ub77c\uc11c \ub2e4\uc74c\uc740 \uc218\uc815\ub41c <code>\ud56d\ubaa9<\/code> \ud568\uc218\ub97c \uc870\uac74\ubd80\ub85c \uc555\ucd95\ud569\ub2c8\ub2e4:<\/p>\n<div class=\"geshifilter\">\n<div class=\"python geshifilter-python\" style=\"font-family: monospace;\">\n<p><span style=\"color: #ff7700; font-weight: bold;\">def<\/span> \ud56d\ubaa9<span style=\"color: black;\">(<\/span>mc<span style=\"color: #66cc66;\">,<\/span> \uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: #66cc66;\">,<\/span> forceCompaction<span style=\"color: #66cc66;\">=<\/span><span style=\"color: #008000;\">False<\/span><span style=\"color: black;\">)<\/span>:<br \/>\n<span style=\"color: #483d8b;\">\"\"\"\uc9d1\ud569\uc5d0\uc11c \ud604\uc7ac \uac12\uc744 \uac80\uc0c9\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p>\uc774 \uacbd\uc6b0 \uc555\ucd95\uc744 \uc694\uccad\ud558\uac70\ub098 \uc778\ucf54\ub529\uc774<br \/>\n\ub108\ubb34 \ub354\ub7fd\uc2b5\ub2c8\ub2e4.\"\"\"<\/p>\n<p>\ud50c\ub798\uadf8<span style=\"color: #66cc66;\">,<\/span> casid<span style=\"color: #66cc66;\">,<\/span> \ub370\uc774\ud130 <span style=\"color: #66cc66;\">=<\/span> mc.<span style=\"color: black;\">get<\/span><span style=\"color: black;\">(<\/span>\uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: black;\">)<\/span><br \/>\n\ub354\ub7ec\uc6c0<span style=\"color: #66cc66;\">,<\/span> \ud0a4 <span style=\"color: #66cc66;\">=<\/span> decodeSet<span style=\"color: black;\">(<\/span>\ub370\uc774\ud130<span style=\"color: black;\">)<\/span><\/p>\n<p><span style=\"color: #ff7700; font-weight: bold;\">\ub9cc\uc57d<\/span> forceCompaction <span style=\"color: #ff7700; font-weight: bold;\">\ub610\ub294<\/span> \ub354\ub7ec\uc6c0 <span style=\"color: #66cc66;\">&gt;<\/span> dirtiness_threshold:<br \/>\n\uc555\ucd95 <span style=\"color: #66cc66;\">=<\/span> encodeSet<span style=\"color: black;\">(<\/span>\ud0a4<span style=\"color: black;\">)<\/span><br \/>\nmc.<span style=\"color: black;\">cas<\/span><span style=\"color: black;\">(<\/span>\uc778\ub371\uc2a4 \uc774\ub984<span style=\"color: #66cc66;\">,<\/span> casid<span style=\"color: #66cc66;\">,<\/span> \uc555\ucd95<span style=\"color: black;\">)<\/span><br \/>\n<span style=\"color: #ff7700; font-weight: bold;\">\ubc18\ud658<\/span> \ud0a4<\/p>\n<\/div>\n<\/div>\n<p>\uc774\uc81c \ub05d\ub0ac\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>\uc694\uc57d<\/h3>\n<p><strong>\ucd5c\uc545\uc758 \uacbd\uc6b0 \uc138\ud2b8\uc5d0 \ucd94\uac00<\/strong>\uc655\ubcf5 2\ud68c(\uc138\ud2b8\uac00 \uc874\uc7ac\ud558\uc9c0 \uc54a\uc544 \uc0dd\uc131\ud574\uc57c \ud558\uc9c0\ub9cc \uc774\ub97c \uc54c \ud544\uc694\ub294 \uc5c6\ub294 \uacbd\uc6b0).<\/p>\n<p><strong>\uc138\ud2b8\uc5d0 \uc77c\ubc18 \ucd94\uac00<\/strong>: \ucd94\uac00\ub418\ub294 \uba64\ubc84 \uc218\uc5d0 \uad00\uacc4\uc5c6\uc774 \uc655\ubcf5 1\ud68c. (\ud56d\ubaa9\uc744 \uc77c\uad04\uc801\uc73c\ub85c \uc62c\ubc14\ub974\uac8c \ucd94\uac00\ud558\uac70\ub098 \uc81c\uac70\ud558\uae30 \uc704\ud574 \ud604\uc7ac \uac12\uc744 \uac80\uc0c9\ud560 \ud544\uc694\ub3c4 \uc5c6\uc73c\uba70, \ubaa8\ub4e0 \ud56d\ubaa9\uc744 \ub2e4\uc2dc \uc804\uc1a1\ud560 \ud544\uc694\ub3c4 \uc5c6\uc2b5\ub2c8\ub2e4).<\/p>\n<p><strong>\ucd5c\uc545\uc758 \uc0ac\ub840 \uac80\uc0c9<\/strong>\uc655\ubcf5 2\ud68c(\uc555\ucd95\uc774 \ubd80\uc791\uc6a9\uc778 \uacbd\uc6b0).<\/p>\n<p><strong>\uc77c\ubc18 \uac80\uc0c9<\/strong>: \uc655\ubcf5 1\ud68c(\ud0a4 \ud558\ub098\ub9cc \uac00\uc838\uc624\uae30).<\/p>\n<h3>\uc8fc\uc758 \uc0ac\ud56d<\/h3>\n<p>\uc138\ud2b8\uc758 \uc218\ub294 \ub300\ub7b5 \ubb34\uc81c\ud55c\uc774\uc9c0\ub9cc, \uc774 \uad6c\ud604\uc744 \uc0ac\uc6a9\ud558\ub294 \ub2e8\uc77c \uc138\ud2b8\uc758 \uc2e4\uc81c \ud06c\uae30\ub294 \uc81c\ud55c\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub9e4\uc6b0 \ud070 \uc138\ud2b8(\uc608: 4,000\uac1c \uc774\uc0c1\uc758 250\ubc14\uc774\ud2b8 \ud56d\ubaa9)\uac00 \ud544\uc694\ud55c \uacbd\uc6b0 \uc5ec\ub7ec \ud0a4(\ub530\ub77c\uc11c \uc5ec\ub7ec \uc11c\ubc84)\uc5d0 \uac78\uccd0 \uc138\ud2b8\ub97c '\uc0e4\ub4dc'\ud558\ub294 \uac83\uc740 \uac04\ub2e8\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc774 \uad6c\ud604\uc5d0\uc11c\ub294 \uc77d\uae30 \uc2dc \uc555\ucd95\uc774 \uc218\ud589\ub418\ubbc0\ub85c \uc218\uc815\uc740 \ub9e4\uc6b0 \ub9ce\uc774 \ud558\uc9c0\ub9cc \uc77d\uae30\ub294 \uac70\uc758 \ud558\uc9c0 \uc54a\ub294 \uacbd\uc6b0\uc5d0\ub294 \uc774 \ucf54\ub4dc\uc5d0 \uc801\ud569\ud558\uc9c0 \uc54a\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \uc800\ub294 \ubb34\uc791\uc704 \uc4f0\uae30\uc5d0\uc11c \uc555\ucd95\uc744 \uc2dc\uc791\ud569\ub2c8\ub2e4(\ucd5c\uc545\uc758 \uacbd\uc6b0 \ucd94\uac00\/\uc81c\uac70\uac00 \ud55c \ubc88\uc774\uba74 \ub420 \uac83\uc744 \uc138 \ud649 \uc815\ub3c4 \uac78\ub9ac\uac8c \ub9cc\ub4ed\ub2c8\ub2e4).<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>[This post also appears on Dustin&#8217;s github blog]. This is something that comes up every once in a while. I usually describe a means of doing it that I think makes sense, but I don\u2019t think I\u2019ve ever described it [&hellip;]<\/p>","protected":false},"author":34,"featured_media":13873,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"tags":[],"ppma_author":[8992],"class_list":["post-1678","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.7.1 (Yoast SEO v25.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Maintaining a Set in Memcached - The Couchbase Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.couchbase.com\/blog\/ko\/maintaining-set-memcached\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Maintaining a Set in Memcached\" \/>\n<meta property=\"og:description\" content=\"[This post also appears on Dustin&#8217;s github blog]. This is something that comes up every once in a while. I usually describe a means of doing it that I think makes sense, but I don\u2019t think I\u2019ve ever described it [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.couchbase.com\/blog\/ko\/maintaining-set-memcached\/\" \/>\n<meta property=\"og:site_name\" content=\"The Couchbase Blog\" \/>\n<meta property=\"article:published_time\" content=\"2014-12-16T19:38:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2017-05-03T17:04:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/2022\/11\/couchbase-nosql-dbaas.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1800\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Dustin Sallings, Chief Architect, Couchbase\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dustin Sallings, Chief Architect, Couchbase\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6\ubd84\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.couchbase.com\/blog\/maintaining-set-memcached\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/maintaining-set-memcached\/\"},\"author\":{\"name\":\"Dustin Sallings, Chief Architect, Couchbase\",\"@id\":\"https:\/\/www.couchbase.com\/blog\/#\/schema\/person\/e68b6f4489072ef4a84f60bc437c07d0\"},\"headline\":\"Maintaining a Set in Memcached\",\"datePublished\":\"2014-12-16T19:38:47+00:00\",\"dateModified\":\"2017-05-03T17:04:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/maintaining-set-memcached\/\"},\"wordCount\":1125,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.couchbase.com\/blog\/maintaining-set-memcached\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.couchbase.com\/blog\/wp-content\/uploads\/sites\/1\/2022\/11\/couchbase-nosql-dbaas.png\",\"articleSection\":[\"Uncategorized\"],\"inLanguage\":\"ko-KR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.couchbase.com\/blog\/maintaining-set-memcached\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.couchbase.com\/blog\/maintaining-set-memcached\/\",\"url\":\"https:\/\/www.couchbase.com\/blog\/maintaining-set-memcached\/\",\"name\":\"Maintaining a Set in Memcached - 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