{"id":14305,"date":"2023-04-18T13:26:45","date_gmt":"2023-04-18T20:26:45","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/?p=14305"},"modified":"2024-04-16T09:24:10","modified_gmt":"2024-04-16T16:24:10","slug":"consistency-models-couchbase-vs-cockroachdb","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/ko\/consistency-models-couchbase-vs-cockroachdb\/","title":{"rendered":"\ub370\uc774\ud130 \uc77c\uad00\uc131 \ubaa8\ub378 \ubc0f \uc131\ub2a5: \uce74\uc6b0\uce58\ubca0\uc774\uc2a4 \ub300 \ucf55\ub85c\uce58DB"},"content":{"rendered":"<h2><span style=\"font-weight: 400;\">CAP \uc815\ub9ac\uc758 \uc601\ud5a5\uc744 \ubc1b\ub294 \uc124\uacc4 \uacb0\uc815<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">CAP \uc815\ub9ac\uc5d0 \ub530\ub974\uba74 \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub294 \ub2e4\uc74c \uc138 \uac00\uc9c0 \ubcf4\uc99d\uc744 \ub3d9\uc2dc\uc5d0 \ubaa8\ub450 \uc81c\uacf5\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4:<\/span><\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li><b>C<\/b><span style=\"font-weight: 400;\">\uc9c0\uc18d\uc131(\uc5b4\ub514\uc11c\ub098 \ud56d\uc0c1 \ucd5c\uc2e0 \uc815\ubcf4\ub97c \uc774\uc6a9\ud560 \uc218 \uc788\uc74c)<\/span><\/li>\n<li><b>A<\/b><span style=\"font-weight: 400;\">\uac00\uc6a9\uc131(\ubaa8\ub4e0 \uc77d\uae30 \ubc0f \uc4f0\uae30 \uc694\uccad\uc774 \uc751\ub2f5\uc744 \ubc1b\uc74c)<\/span><\/li>\n<li><b>P<\/b><span style=\"font-weight: 400;\">\uc544\ud2f0\uc158 \ud1a8\ub7ec\ub7f0\uc2a4(\ub0b4\uacb0\ud568\uc131\uc758 \ud55c \ud615\ud0dc\ub77c\uace0 \uc0dd\uac01\ud558\uba74 \ub429\ub2c8\ub2e4)<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">\ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0 \ub300\ud55c CAP \uc815\ub9ac\uc5d0\uc11c \ub300\ubd80\ubd84\uc758 \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub294 \ub370\uc774\ud130\uc758 \uc0c1\ud0dc\uc640 \uac12\uc744 \uc720\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4. \ub370\uc774\ud130\uc5d0\ub294 \ucee8\ud14c\uc774\ub108\uc640 \ud638\uc2a4\ud2b8 \uc2dc\uc2a4\ud15c\uc774 \ud544\uc694\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 \ub2e8\uc77c \ud638\uc2a4\ud2b8\uc5d0\uc11c \ub370\uc774\ud130\uc758 \ub2e8\uc77c \ubcf5\uc0ac\ubcf8\uc744 \uc2e4\ud589\ud558\ub294 \uac83\uc740 \ud638\uc2a4\ud2b8\uc5d0 \uc804\uae30\uac00 \uacf5\uae09\ub418\ub294 \uacbd\uc6b0\uc5d0\ub9cc \uc791\ub3d9\ud569\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc815\uc804 \uc804\ud6c4\uc5d0 \ud638\uc2a4\ud2b8\uc5d0\uc11c \ub370\uc774\ud130\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \uac83\uc740 \uc804\uae30 \ubd80\uc871\uc744 \uacac\ub51c \uc218 \uc788\ub294 \uc2a4\ud1a0\ub9ac\uc9c0\uc5d0 \ub370\uc774\ud130\uac00 \ubcf4\uc874\ub418\uc5b4 \uc788\ub294 \uacbd\uc6b0\uc5d0\ub9cc \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc774 \ub450 \uac00\uc9c0 \uc694\uad6c \uc0ac\ud56d\uc740 \ub370\uc774\ud130\uc758 \uc0ac\ubcf8\uc744 \ub9cc\ub4e4\uc5b4 \uc5ec\ub7ec \ud638\uc2a4\ud2b8\uc640 \uc2a4\ud1a0\ub9ac\uc9c0 \ub4dc\ub77c\uc774\ube0c\uc5d0 \uc800\uc7a5\ud574\uc57c \ud558\ub294 \ud544\uc694\uc131\uc744 \ub0b3\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud074\ub7ec\uc2a4\ud130\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uacbd\uc6b0\uc5d0 \ud544\uc694\ud569\ub2c8\ub2e4. <\/span><i><span style=\"font-weight: 400;\">\ud30c\ud2f0\uc158 <\/span><\/i><span style=\"font-weight: 400;\">\ud5c8\uc6a9 \uc624\ucc28(CAP \uc815\ub9ac\uc758 P)\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\ub530\ub77c\uc11c \ud30c\ud2f0\uc158 \ud5c8\uc6a9 \uc624\ucc28\uac00 \uc788\uc5b4\uc57c \ud558\ub294 \uacbd\uc6b0 \ubd84\uc0b0 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uc808\ucda9\uc810\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <\/span><i><span style=\"font-weight: 400;\">\uc77c\uad00\uc131 <\/span><\/i><span style=\"font-weight: 400;\">\uadf8\ub9ac\uace0 <\/span><i><span style=\"font-weight: 400;\">\uac00\uc6a9\uc131<\/span><\/i><span style=\"font-weight: 400;\">. \uc77c\uad00\uc131\uc740 \ub370\uc774\ud130 \ubb34\uacb0\uc131\uc774 \uac00\uc7a5 \uc911\uc694\ud558\uae30 \ub54c\ubb38\uc5d0 \ubaa8\ub4e0 \ub178\ub4dc \ub610\ub294 \ub370\uc774\ud130 \ud30c\ud2f0\uc158\uc5d0 \ub300\ud55c \uc4f0\uae30\uac00 \ud074\ub7ec\uc2a4\ud130 \uc804\uccb4\uc5d0\uc11c \uc11c\ub85c \uc77c\uad00\uc131\uc744 \uc720\uc9c0\ud574\uc57c \ud569\ub2c8\ub2e4. CockroachDB\ub294 \"\ud575 \ucf54\ub4dc\"\uc640 \uac19\uc740 \uc911\uc694\ud55c \ub370\uc774\ud130 \uc608\uc2dc\ub97c \uc990\uaca8 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\uac00\uc6a9\uc131\uc740 \ud30c\ud2f0\uc158\ucc98\ub7fc \ub370\uc774\ud130\ubca0\uc774\uc2a4\uac00 \uc6b4\uc601 \uc548\uc815\uc131\uc744 \uc704\ud574 \uc9c0\uc6d0\ud574\uc57c \ud558\ub294 CAP\uc758 \ub610 \ub2e4\ub978 \uc18d\uc131\uc73c\ub85c, \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub97c \ucc3e\uc744 \uc218 \uc5c6\ub2e4\uba74 \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub294 \ubb34\uc6a9\uc9c0\ubb3c\uc785\ub2c8\ub2e4. \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0, \ub370\uc774\ud130 \uc800\uc7a5 \ub610\ub294 \uac80\uc0c9 \uc694\uccad\uc744 \ub193\uce58\uc9c0 \uc54a\uace0 \ud56d\uc0c1 \"\ucf1c\uc838 \uc788\ub294\" \uc0c1\ud0dc\ub97c \uc720\uc9c0\ud558\ub294 \uac83\uc774 \uc911\uc694\ud569\ub2c8\ub2e4. \uc0ac\ub78c\uacfc \uc218\ub9ce\uc740 \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ubaa8\ub450\uc5d0\uac8c \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc5c6\ub2e4\ub294 \uac83\uc740 \ud070 \uc190\uc2e4\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c AP \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uac00\uc7a5 \uc911\uc694\ud55c \uac83\uc740 \uacbd\ud5d8\uc785\ub2c8\ub2e4.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\ubc14\ud034\ubc8c\ub808DB\ub294 CP \uae30\ubc18, \uce74\uc6b0\uce58\ubca0\uc774\uc2a4\ub294 CP\uc5d0 \ub530\ub77c \uac00\ubcc0\uc801\uc785\ub2c8\ub2e4.<\/span><\/h2>\n<p><a href=\"https:\/\/github.com\/cockroachdb\/cockroach\/blob\/master\/docs\/design.md\"><span style=\"font-weight: 400;\">\ubc14\ud034\ubc8c\ub808DB\ub294 CP \uae30\ubc18 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc785\ub2c8\ub2e4.<\/span><\/a><span style=\"font-weight: 400;\">\uc5d0 \ub300\ud55c \ubaa8\ub4e0 \uc4f0\uae30\ub294 \ud2b8\ub79c\uc7ad\uc158\uc774\uba70 \ud569\uc758 \uae30\ubc18\uc5d0 \ub530\ub77c \ubcf5\uc81c\ub429\ub2c8\ub2e4. <\/span><i><span style=\"font-weight: 400;\">RAFT <\/span><\/i><span style=\"font-weight: 400;\">\ud504\ub85c\ud1a0\ucf5c\uc744 \ud0a4\/\uac12 \ub370\uc774\ud130 \ubc94\uc704\uac00 \ud3ec\ud568\ub41c \ub514\uc2a4\ud06c \uc800\uc7a5\uc18c\uc5d0 \uc5f0\uacb0\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c CockroachDB\ub294 \ub9e4\uc6b0 \uc77c\uad00\uc131\uc774 \uac15\ud55c \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc785\ub2c8\ub2e4. <\/span><a href=\"https:\/\/www.cockroachlabs.com\/blog\/consistency-model\/\"><span style=\"font-weight: 400;\">\uadf8\ub4e4\uc758 \ud6cc\ub96d\ud55c \ube14\ub85c\uadf8<\/span><\/a><span style=\"font-weight: 400;\"> \ub294 \"\uac70\uc758\" \uc9c0\uc6d0\ud560 \uc218 \uc788\ub2e4\uace0 \uc124\uba85\ud569\ub2c8\ub2e4.<\/span><a href=\"https:\/\/jepsen.io\/consistency\"> <span style=\"font-weight: 400;\">\uc82d\uc2a8\uc758 \"\uc5c4\uaca9\ud55c \uc9c1\ub82c\ud654 \uac00\ub2a5\"<\/span><\/a><span style=\"font-weight: 400;\"> \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc758 \uc77c\uad00\uc131 \uc218\uc900\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Couchbase\ub3c4 \uc2e4\uc81c\ub85c \uc77c\uad00\uc131\uc774 \ub9e4\uc6b0 \ub192\uc740 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc774\uc9c0\ub9cc \uac00\uc6a9\uc131\uc744 \uc704\ud574 \uc77c\uad00\uc131 \uc218\uc900\uc744 \uc218\uc815\ud560 \uc218 \uc788\ub294 \ubcc0\uc218\ub97c \uc81c\uacf5\ud558\uc5ec AP \uc2dc\uc2a4\ud15c\uc73c\ub85c \uc804\ud658\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc778\uba54\ubaa8\ub9ac \uc124\uacc4\ub85c \uc778\ud574 \ud074\ub7ec\uc2a4\ud130 \uac04 \ube44\ub3d9\uae30 \ubcf5\uc81c\ub97c \ud1b5\ud574 \ubc00\ub9ac\ucd08 \uc774\ub0b4\uc5d0 \uc77c\uad00\uc131\uc744 \uc720\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uce74\uc6b0\uce58\ubca0\uc774\uc2a4\ub294 \ub9e4\uc6b0 \ub192\uc740 \uc131\ub2a5, \uc870\uc815 \uac00\ub2a5\uc131, \uac00\uc6a9\uc131\uc744 \uc81c\uacf5\ud558\ub294 \ub370 \uc911\uc810\uc744 \ub450\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc9e7\uc740 \uc9c0\uc5f0 \uc2dc\uac04\uc744 \uc81c\uacf5\ud558\ub294 \uac83\uc774 \uae30\ubcf8 \uc124\uacc4 \uc6d0\uce59\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\ud655\uc7a5 \uac00\ub2a5\ud55c \ud074\ub7ec\uc2a4\ud130 \uc124\uacc4\ub97c \ud1b5\ud574 \ud2b8\ub79c\uc7ad\uc158\uc5d0 \uc9d1\uc911\ud558\ub294 \uac83\uc774 \ucf55\ub85c\uce58\uc758 \uac15\uc810\uc785\ub2c8\ub2e4. \uce74\uc6b0\uce58\ubca0\uc774\uc2a4\uc758 \uac15\uc810\uc740 \uaddc\ubaa8\uc5d0 \ub530\ub978 \uc131\ub2a5\uacfc \uc720\uc5f0\uc131\uc5d0 \uc911\uc810\uc744 \ub454\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \ub300\ud55c \uadf8\ub4e4\uc758 \uc8fc\ub41c \uad00\uc2ec\uc0ac\ub294 \ub370\uc774\ud130 \ubb34\uacb0\uc131\uc778 \ubc18\uba74, \uc6b0\ub9ac\ub294 \ub370\uc774\ud130\uc758 \uc0ac\uc6a9 \ubc29\uc2dd(\uc8fc\ub85c \uc0ac\ub78c\uc5d0 \uc758\ud574)\uc785\ub2c8\ub2e4. \ub370\uc774\ud130\ub294 \uc798\ubabb\ub41c \uac12\uc744 \uc54c\ub824\uc8fc\uc9c0 \uc54a\uc9c0\ub9cc, \uc0ac\ub78c\ub4e4\uc740 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \ub290\ub9ac\uac70\ub098 \uc0ac\uc6a9\ud560 \uc218 \uc5c6\uc744 \ub54c \uc774\ub97c \uc54c\ub824\uc90d\ub2c8\ub2e4.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\uc0b0 \uac70\ub798<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\ud2b8\ub79c\uc7ad\uc158 \uad00\uc810\uc5d0\uc11c \ubcfc \ub54c Couchbase\ub294 RAFT \ud504\ub85c\ud1a0\ucf5c\uc744 \ub530\ub974\uc9c0 \uc54a\uc9c0\ub9cc \uc6d0\uce59\uc740 \ub3d9\uc77c\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 Couchbase\ub294 \ub2e4\uc911 \ubb38\uc11c \uc800\uc7a5 \uae30\ub2a5\uc744 \uc81c\uacf5\ud558\uace0 \uc788\uc73c\uba70 \ucd5c\uadfc \ud2b9\ud5c8 \uc2b9\uc778\uc744 \ubc1b\uc558\uc2b5\ub2c8\ub2e4. <a href=\"https:\/\/www.couchbase.com\/blog\/ko\/transactions\/\">\uc0b0 \uac70\ub798<\/a> \ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uae30\ub2a5\uc740 CockroachDB\uc640 \ub2ec\ub9ac \ub2e4\uc74c\uacfc \uac19\uc740 \uc6a9\ub3c4\ub85c \uc870\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><a href=\"https:\/\/www.couchbase.com\/blog\/ko\/distributed-multi-document-acid-transactions-in-couchbase\/\"><span style=\"font-weight: 400;\"> \ub0b4\uad6c\uc131 \ubc0f \uaca9\ub9ac \uc218\uc900<\/span><\/a><span style=\"font-weight: 400;\">. \uc82d\uc2a8\uc5d0 \ub530\ub974\uba74 \ud2b8\ub79c\uc7ad\uc158\uc744 \uaca9\ub9ac\ud558\uc5ec \ub2e4\uc74c\uc744 \uc9c0\uc6d0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><a href=\"https:\/\/docs.couchbase.com\/server\/current\/learn\/data\/transactions.html#overview\"> <span style=\"font-weight: 400;\">\ub2e8\uc870\ub85c\uc6b4 \uc6d0\uc790 \uc77d\uae30<\/span><\/a><span style=\"font-weight: 400;\">\uc0c1\uc2dc \uc0ac\uc6a9 \uac00\ub2a5\ud55c \uc2dc\uc2a4\ud15c\uc5d0 \uc81c\uacf5\ub418\ub294 \ucd5c\uace0 \uc218\uc900\uc758 \uaca9\ub9ac \uc218\uc900\uc785\ub2c8\ub2e4.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\ub370\uc774\ud130 \uc704\uce58 \ub9f5\uc744 \ud1b5\ud55c \ud074\ub7ec\uc2a4\ud130 \ud655\uc7a5<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\ub450 \ubd84\uc0b0 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ubaa8\ub450 \uc798 \ud655\uc7a5\ub429\ub2c8\ub2e4. CockroachDB\ub294 \ud30c\ud2f0\uc158 \ub610\ub294 \ub370\uc774\ud130 \uc800\uc7a5\uc18c\uc5d0 \ud0a4\/\uac12 \ub370\uc774\ud130 \ubc94\uc704\uc758 \ub798\ud504\ud2b8 \ud074\ub7ec\uc2a4\ud130(\ubcf4\ud1b5 3\uac1c)\ub97c \uc815\uc758\ud558\uc5ec \ub178\ub4dc\ub97c \ud655\uc7a5\ud569\ub2c8\ub2e4. CockroachDB \ub178\ub4dc\ub294 \uc800\uc7a5\uc18c\uc5d0 \ub370\uc774\ud130 \ubc94\uc704\uc758 \ub9ac\ub354\uc640 \ubcf5\uc81c\ubcf8\uc744 \ubaa8\ub450 \ud638\uc2a4\ud305\ud560 \uc218 \uc788\uc73c\uba70, \ubc94\uc704\uc758 \ud06c\uae30\ub294 \uc790\ub3d9\uc73c\ub85c \uad00\ub9ac\ub418\uace0 \ud30c\ud2f0\uc158\uc774 \uc9c0\uc815\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub798\ud504\ud2b8 \uae30\ubc18 KV \ub370\uc774\ud130 \ubc94\uc704\ub294 \ud06c\uae30\uac00 \uc791\uace0 \ub2e4\ub978 \ub178\ub4dc\uc5d0 \uc27d\uac8c \ubcf5\uc81c\ud560 \uc218 \uc788\ub2e4\ub294 \uac83\uc774 CockroachDB\uc758 \uc7a5\uc810\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c EC2 \uc778\uc2a4\ud134\uc2a4\ub294 \ub9ac\ub354\uc640 \ub450 \uac1c\uc758 \ubcf5\uc81c\ubcf8\uc73c\ub85c \uad6c\uc131\ub41c \ub9ce\uc740 \ub370\uc774\ud130 \ubc94\uc704 \uc138\ud2b8\ub97c \ud638\uc2a4\ud305\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\uc544\ud0a4\ud14d\ucc98\uc758 \ubc30\ud3ec \uacc4\uce35\uc740 \"\ubaa8\ub180\ub9ac\uc2dd \uc815\ub82c \ub9f5 \uad6c\uc870\"\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \ub370\uc774\ud130\uc758 \uc704\uce58\ub97c \ucc3e\uae30 \uc704\ud574 CockroachDB\uc758 \ubaa8\ub4e0 \ub178\ub4dc\uac00 \uc0ac\uc6a9\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. \uc774 \ub9f5\uc758 \ud2b8\ub9ac \uad6c\uc870\ub294 \uc7ac\uadc0\uc801\uc73c\ub85c \ud638\ucd9c\ub418\uba70 \ub178\ub4dc\uc5d0 \uc704\uce58\ub97c \uce90\uc2dc\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c RPC\ub294 \ub798\ud504\ud2b8 \ubc94\uc704\uc758 \ub9ac\ub354\ub97c \ud638\uc2a4\ud305\ud558\ub294 \ub178\ub4dc\uc5d0 \uc77c\uad04 \ucffc\ub9ac \uc694\uccad\uc744 \ubcf4\ub0c5\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">CockroachDB\ub294 \uac01 \ub178\ub4dc\uac00 \ub3d9\uc9c8\uc801\uc774\uace0 \uad6c\uc131\uc774 \uac70\uc758 \ud544\uc694\ud558\uc9c0 \uc54a\uc73c\uba70 \ubaa8\ub4e0 \ub178\ub4dc\uac00 \ub3d9\uc77c\ud55c \uc885\ub958\uc758 \uc791\uc5c5\uc744 \uc218\ud589\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uac00\uc6a9\uc131 \uc124\uacc4\uc758 \ud2b9\uc9d5\uc740 \"\ub2e4\uc911 \ud65c\uc131 \uac00\uc6a9\uc131\"\uc785\ub2c8\ub2e4.<\/span><\/p>\n<h3>\uc561\ud2f0\ube0c-\uc561\ud2f0\ube0c \ud074\ub7ec\uc2a4\ud130 \uc124\uacc4<\/h3>\n<p><span style=\"font-weight: 400;\">Couchbase\ub294 \ud074\ub7ec\uc2a4\ud130\uc758 \ubaa8\ub4e0 \uad6c\uc131\uc6d0\uc774 \uc4f0\uae30 \ub610\ub294 \uc77d\uae30\ub97c \uc218\ud589\ud560 \uc218 \uc788\ub294 \uc561\ud2f0\ube0c-\uc561\ud2f0\ube0c \ud074\ub7ec\uc2a4\ud130 \uc124\uacc4\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc720\uc5f0\uc131\uc740 \ub450 \uac00\uc9c0 \uc124\uacc4 \uacb0\uc815\uc5d0 \uc758\ud574 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uccab\uc9f8, CockroachDB\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c Couchbase \ub370\uc774\ud130\uc758 \ub370\uc774\ud130 \uc704\uce58\ub294 \ud074\ub7ec\uc2a4\ud130\uc5d0 \uc758\ud574 \uad00\ub9ac\ub429\ub2c8\ub2e4. \ud558\uc9c0\ub9cc \ubaa8\ub4e0 \uad6c\uc131\uc6d0\uc774 \ubaa8\ub4e0 <\/span><i><span style=\"font-weight: 400;\">\ub178\ub4dc <\/span><\/i><span style=\"font-weight: 400;\">\ub97c \uc0ac\uc6a9\ud558\uc5ec \ub9f5\uc744 \uad00\ub9ac, \ucffc\ub9ac \ubc0f \uce90\uc2dc\ud558\uace0, \uce74\uc6b0\uce58\ubca0\uc774\uc2a4\ub294 \ud074\ub7ec\uc2a4\ud130 \ub9f5\uc744 <\/span><i><span style=\"font-weight: 400;\">\uc560\ud50c\ub9ac\ucf00\uc774\uc158 <\/span><\/i><span style=\"font-weight: 400;\">\ub97c \ucd94\uac00\ud569\ub2c8\ub2e4. \uc774\ub807\uac8c \ud558\uba74 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \ud56d\uc0c1 \ub370\uc774\ud130\uc758 \uc704\uce58\ub97c \ud30c\uc545\ud558\uc5ec \uc778\ud504\ub77c\uc758 \ub9ac\uc18c\uc2a4\ub97c \uc18c\ubaa8\ud558\ub294 \uc704\uce58 \uc870\ud68c\ub97c \uc81c\uac70\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. Couchbase\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ub0b4\uc758 \ub178\uc774\uc988 \ud2b8\ub798\ud53d\uc744 \uc904\uc5ec \uc2e4\uc81c \uc791\uc5c5\uc744 \uce90\uc2dc\ud560 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4. \ucc28\uc774\uc810\uc5d0 \ub300\ud55c \uc124\uba85\uc740 \ub2e4\uc74c\uc5d0\uc11c \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/span><a href=\"https:\/\/db.in.tum.de\/teaching\/ws2021\/clouddataprocessing\/slides\/CDP_3.pdf?lang=en\"><span style=\"font-weight: 400;\">\ud074\ub77c\uc6b0\ub4dc \uae30\ubc18 \ub370\uc774\ud130 \ucc98\ub9ac \ud504\ub808\uc820\ud14c\uc774\uc158<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\uce74\uc6b0\uce58\ubca0\uc774\uc2a4 \ubcf5\uc81c \ubc0f \uc790\ub3d9 \ud30c\ud2f0\uc154\ub2dd \uae30\ub2a5\uc740 \uce74\uc6b0\uce58\ubca0\uc774\uc2a4 \ub370\uc774\ud130\ub97c \ubcf5\uc81c \ubc0f \uc2a4\ud1a0\ub9ac\uc9c0 \uad00\ub9ac\ub97c \uc704\ud574 \ud30c\ud2f0\uc158\uc73c\ub85c \ubd84\ud560\ud558\ub294 \uac83\uacfc \uc720\uc0ac\ud558\uac8c \uad00\ub9ac\ub429\ub2c8\ub2e4. Couchbase \ud074\ub7ec\uc2a4\ud130 \ub9f5\uc740 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 vBucket\uc758 \uc4f0\uae30 \uac00\ub2a5\ud55c \ud65c\uc131 \ub178\ub4dc\uac00 \uc788\ub294 \uc704\uce58\uc640 \uadf8 \ubcf5\uc81c\ubcf8\uc774 \uc788\ub294 \uc704\uce58\ub97c \uc54c\ub824\uc90d\ub2c8\ub2e4. \ud65c\uc131 vBucket\uc5d0 \uc7a5\uc560\uac00 \ubc1c\uc0dd\ud558\uba74 \ubcf5\uc81c\ubcf8\uc774 \uc778\uacc4\ub418\uc5b4 \uc4f0\uae30 \uac00\ub2a5\ud55c \ud65c\uc131 \ubb38\uc11c \uc9d1\ud569\uc774 \ub429\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c \ub300\uccb4 \ubcf5\uc81c\ubcf8\uc774 \ub9cc\ub4e4\uc5b4\uc9c0\uace0 \ucc44\uc6cc\uc9d1\ub2c8\ub2e4. \ubaa8\ub4e0 \ud074\ub7ec\uc2a4\ud130 \ub0b4 \ubcf5\uc81c(\ubc0f XDCR\uc744 \ud1b5\ud55c \ud074\ub7ec\uc2a4\ud130 \uac04 \ubcf5\uc81c)\ub294 \uc778\uba54\ubaa8\ub9ac\uc5d0\uc11c \uc774\ub8e8\uc5b4\uc9c0\uba70 \uc131\ub2a5\uc744 \uc870\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\uc778\uba54\ubaa8\ub9ac \uce90\uc2f1 \ubc0f \uc131\ub2a5 \ud29c\ub2dd<\/span><\/h2>\n<p><a href=\"https:\/\/www.cockroachlabs.com\/blog\/memory-usage-cockroachdb\/\"><span style=\"font-weight: 400;\">\ubc14\ud034\ubc8c\ub808DB \ube14\ub85c\uadf8<\/span><\/a><span style=\"font-weight: 400;\"> \ub294 \ub370\uc774\ud130 \ubc94\uc704\uc758 KV \ub370\uc774\ud130\ub97c \ud3ec\ud568\ud558\ub294 RocksDB \uce90\uc2dc, \ub370\uc774\ud130 \ubc94\uc704 \ub9ac\ub354\uac00 \ud638\uc2a4\ud305\ub418\ub294 \ub178\ub4dc\ub97c \ucc3e\ub294 \ub9f5, \ud074\ub77c\uc774\uc5b8\ud2b8\uc758 \uc138\uc158 \uc5f0\uacb0, SQL \ucffc\ub9ac \uc2e4\ud589\uc744 \uc704\ud55c \ucffc\ub9ac \ucc44\ub110, SQL \ucffc\ub9ac \uc791\uc5c5 \ubc0f \uac01 \uc544\ud0a4\ud14d\ucc98 \uacc4\uce35\uc758 \uae30\ud0c0 \ud65c\ub3d9 \ub4f1 \uc5ec\ub7ec \uc720\ud615\uc758 \uce90\uc2f1 \ud65c\ub3d9\uc5d0 \ub3d9\uc2dc\uc5d0 \uc0ac\uc6a9\ub420 \uc218 \uc788\uc73c\ubbc0\ub85c \uba54\ubaa8\ub9ac \uc18c\ube44\ub97c \uc124\uba85\ud569\ub2c8\ub2e4. \ubb3c\ub860 \ud638\uc2a4\ud2b8\uc758 CPU\uac00 \ube60\ub97c\uc218\ub85d \uc77c\ubd80 \uc791\uc5c5\uc740 \ub354 \ube68\ub77c\uc9d1\ub2c8\ub2e4. \ud558\uc9c0\ub9cc Couchbase \ub2e4\ucc28\uc6d0 \ud655\uc7a5\uacfc \uac19\uc740 \ud2b9\uc815 \uc791\uc5c5\uc5d0 \ub9ac\uc18c\uc2a4\ub97c \uc131\ub2a5\uc5d0 \ub9de\uac8c \ub9de\ucd9c \uc218 \uc788\ub294 \ubc29\ubc95\uc740 \uc5c6\ub294 \uac83 \uac19\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\uce74\uc6b0\uce58\ubca0\uc774\uc2a4\uc758 \ud575\uc2ec\uc740 \ubc14\ud034\ubc8c\ub808DB\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c \ub370\uc774\ud130\uc5d0 \ub300\ud55c \uace0\uc18d \uc561\uc138\uc2a4\ub97c \uc9c0\uc6d0\ud558\ub294 \uace0\uc131\ub2a5 \ud0a4\/\uac12 \ub370\uc774\ud130 \uc800\uc7a5\uc18c(\ub9c8\uadf8\ub9c8\ub77c\uace0 \ud568)\uc785\ub2c8\ub2e4. Couchbase\ub294 \ucd94\uac00\ub85c <\/span><i><span style=\"font-weight: 400;\">\uba64\uce90\uc2dc\ub4dc <\/span><\/i><span style=\"font-weight: 400;\">\ub8e8\ud2b8\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc774 \ud0a4\/\uac12 \uc561\uc138\uc2a4\ubfd0\ub9cc \uc544\ub2c8\ub77c \ub0b4\uacb0\ud568\uc131\uc744 \uc704\ud55c \ud074\ub7ec\uc2a4\ud130 \ub0b4 \ubcf5\uc81c, \uc9c0\ub9ac\uc801 \uc704\uce58\ub97c \uc704\ud55c \ud074\ub7ec\uc2a4\ud130 \uac04 \ubcf5\uc81c(XDCR), \ucffc\ub9ac, \uac80\uc0c9, \ubd84\uc11d \ubc0f \uc774\ubca4\ud2b8 \uc791\uc5c5\uc744 \ud3ec\ud568\ud55c \ubaa8\ub4e0 \ub0b4\ubd80 \uc791\uc5c5\uc758 \uc778\uba54\ubaa8\ub9ac \ucc98\ub9ac\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 CockroachDB\uc640 \ub2ec\ub9ac Couchbase\ub294 \uc131\ub2a5 \uad6c\uc131\uc774 \uac00\ub2a5\ud558\uae30 \ub54c\ubb38\uc5d0 \ud638\uc2a4\ud305 \uc778\ud504\ub77c \ubc0f \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub9de\uac8c \ubaa8\ub4e0 Couchbase \uc11c\ube44\uc2a4\ub97c \uc131\ub2a5\uc5d0 \ub9de\uac8c \uc870\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub370\uc774\ud130 \uc561\uc138\uc2a4 \uc11c\ube44\uc2a4\uc5d0 \ub354 \ub9ce\uc740 \uba54\ubaa8\ub9ac\ub098 CPU\uac00 \ud544\uc694\ud55c \uacbd\uc6b0 \ub178\ub4dc, RAM \ub610\ub294 CPU\ub97c \ub354 \ucd94\uac00\ud558\uba74 \ub429\ub2c8\ub2e4. Couchbase\uc758 \ubaa8\ub4e0 \ub3c5\ub9bd \uc11c\ube44\uc2a4\uc5d0\uc11c\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\ub85c \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uae30\ub2a5\uc744 <\/span><i><span style=\"font-weight: 400;\">\ub2e4\ucc28\uc6d0 \uc2a4\ucf00\uc77c\ub9c1<\/span><\/i><span style=\"font-weight: 400;\">\ub294 Couchbase\ub9cc\uc758 \uace0\uc720\ud55c \uae30\ub2a5\uc785\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Couchbase \ub2e4\ucc28\uc6d0 \ud655\uc7a5\uc744 \ud1b5\ud574 \ub370\uc774\ud130 \ubcf5\uc81c \ubc0f \uc561\uc138\uc2a4 \uc11c\ube44\uc2a4\ub294 \ucffc\ub9ac, \uc778\ub371\uc2f1, \uac80\uc0c9, \uc774\ubca4\ud2b8, \ubd84\uc11d \uc11c\ube44\uc2a4 \uac01\uac01\uacfc \ub9c8\ucc2c\uac00\uc9c0\ub85c \uc804\uc6a9 \ub178\ub4dc \ubc0f \uba54\ubaa8\ub9ac \ud560\ub2f9 \uc138\ud2b8\ub97c \uac00\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">SQL \ucffc\ub9ac \uc9c0\uc6d0<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\ub450 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ubaa8\ub450 SQL\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uadf8\ub7ec\ub098 CockroachDB\ub294 PostgreSQL API, \uc2a4\ud0a4\ub9c8 \uad6c\uc870 \ubc0f ANSI SQL\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4. Couchbase\ub294 \uc2a4\ud0a4\ub9c8 \uad6c\uc870\uac00 \ud544\uc694\ud558\uc9c0 \uc54a\uc9c0\ub9cc \uc2a4\ud0a4\ub9c8 \uad6c\uc870\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\ub85c, \uce74\uc6b0\uce58\ubca0\uc774\uc2a4\ub294 \uac15\ub825\ud55c \ub370\uc774\ud130 \uc720\ud615\uc774 \ud544\uc694\ud558\uc9c0 \uc54a\uc73c\uba70 \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ub0b4\uc5d0\uc11c \ud2b9\uc815 \uc2a4\ud0a4\ub9c8 \uc81c\uc57d \uc870\uac74\uc5d0 \ub300\ud55c \uc9c0\uc6d0\uc744 \uc81c\uacf5\ud558\uc9c0 \uc54a\uc73c\ubbc0\ub85c \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uac1c\ubc1c\uc790\uac00 \uc774\ub97c \uad6c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Couchbase\ub294 \uc720\uc5f0\ud558\uace0 \uc27d\uac8c \uc218\uc815\ud560 \uc218 \uc788\ub294 \ub370\uc774\ud130 \uc561\uc138\uc2a4 \ud615\uc2dd\uc73c\ub85c JSON\uc744 \uc0ac\uc6a9\ud558\uba70, \uc804\uccb4 \ud14d\uc2a4\ud2b8 \uac80\uc0c9 \ubc0f \uc2dc\uacc4\uc5f4 \uad6c\uc870 \ub4f1\uc744 \uc9c0\uc6d0\ud558\ub3c4\ub85d \ud655\uc7a5\ud588\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud655\uc7a5\uc131 \ub355\ubd84\uc5d0 Couchbase\ub294 \ucd5c\ub300 6\uac1c\uc758 \uc11c\ub85c \ub2e4\ub978 \uc81c\ud488 \uc791\uc5c5\uc744 \uc218\ud589\ud560 \uc218 \uc788\ub2e4\ub294 \uc774\uc810\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub610\ud55c Couchbase\ub294 JavaScript \ubc0f Python \uc774\ubca4\ud2b8\uc6a9 \uc11c\ube44\uc2a4 \uc5d4\uc9c4, \uc0ac\uc6a9\uc790 \uc815\uc758 \ud568\uc218, SQL++\uc6a9 \ube44\uc6a9 \uae30\ubc18 \ucffc\ub9ac \ucd5c\uc801\ud654 \ub3c4\uad6c(\uc774\uc804\uc5d0\ub294 N1QL\uc774\ub77c\uace0 \ubd88\ub838\ub358 JSON\uc6a9 SQL), \ud65c\uc131 \ub370\uc774\ud130\uc5d0 \ub300\ud55c \ubd84\uc11d \uc9d1\uacc4 \ubc0f \ub370\uc774\ud130\ubca0\uc774\uc2a4 \ubc31\uc5c5 \uae30\ub2a5\ub3c4 \uc81c\uacf5\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc11c\ube44\uc2a4\uc5d0 \ub300\ud55c \uc778\ud130\ud398\uc774\uc2a4\ub294 \ub300\ubd80\ubd84\uc758 \uc0ac\uc6a9\uc790\uc5d0\uac8c SQL\uacfc \ub3d9\uc77c\ud558\uac8c \uc791\ub3d9\ud558\ub294 SQL++\ub97c \uc0ac\uc6a9\ud558\ub294 \ub4f1, \ube60\ub978 \ud1b5\ud569\uc744 \ub3d5\uae30 \uc704\ud574 \uc758\ub3c4\uc801\uc73c\ub85c \uc9c1\uad00\uc801\uc73c\ub85c \uc124\uacc4\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\ubcf5\uc81c \ubc0f \ub3d9\uae30\ud654<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">CockroachDB\ub294 \ub370\uc774\ud130\uc13c\ud130 \uac04 \ubcf5\uc81c\ub97c \uc9c0\uc6d0\ud558\uc9c0\ub294 \uc54a\uc9c0\ub9cc \ub2e4\ub978 \uc9c0\uc5ed\uc5d0 \ud074\ub7ec\uc2a4\ud130 \ub178\ub4dc\ub97c \ubc30\ud3ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uce74\uc6b0\uce58\ubca0\uc774\uc2a4\ub294 XDCR\uc5d0 \ub300\ud55c \ucd5c\uc885 \uc77c\uad00\uc131\uc744 \uc9c0\uc6d0\ud558\uba70, \ub3d9\uc77c\ud55c HCL \uc2a4\ud0ec\ud504(\ud558\uc774\ube0c\ub9ac\ub4dc-\ub85c\uceec \ud074\ub85d) CAS \uac12\uc744 \uac00\uc9c4 \ubb38\uc11c\uac00 \ubc1c\uacac\ub420 \uacbd\uc6b0 CAS \uae30\ubc18(\ud655\uc778 \ubc0f \uc2a4\uc651) \ucda9\ub3cc \ud574\uacb0 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774 \uacbd\uc6b0 \uac00\uc7a5 \ud65c\ubc1c\ud558\uac8c \uc561\uc138\uc2a4\ud55c \ubb38\uc11c \ub610\ub294 \uac00\uc7a5 \ucd5c\uadfc\uc5d0 \uc561\uc138\uc2a4\ud55c \ubb38\uc11c\ub97c \uc2b9\uc790\ub85c \uc9c0\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. CockroachDB\ub3c4 \uc77c\uad00\uc131\uacfc \ucda9\ub3cc \ud574\uacb0\uc744 \uc704\ud574 HCL\uc744 \ud0c0\uc784\uc2a4\ud0ec\ud504\ub85c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. Couchbase\ub294 Couchbase Lite \ubaa8\ubc14\uc77c \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc5d0\ub3c4 \ubaa8\ubc14\uc77c \ub3d9\uae30\ud654 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\uc624\ub798\ub41c \ub370\uc774\ud130 \uc77d\uae30<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">\uc4f0\uae30 \ubc0f \uc77d\uae30 \uc77c\uad00\uc131 \uc720\uc9c0\ub97c \uc704\ud55c \ubcf5\uc81c \uae30\ub2a5(CockroachDB\uc758 \uacbd\uc6b0 \uc9c1\ub82c\ud654, Couchbase \ubd84\uc0b0 \ud2b8\ub79c\uc7ad\uc158\uc758 \uacbd\uc6b0 \ub2e8\uc870\ub85c\uc6b4 \uc6d0\uc790 \ubcf4\uae30)\uc744 \ud3ec\ud568\ud55c \ubcf5\uc81c \uae30\ub2a5 \ubc0f \uae30\ud0c0 \ubaa8\ub4e0 \ud65c\ub3d9\uc740 ACID\uac00 \ubcf4\uc7a5\ub418\ub294 \ud2b8\ub79c\uc7ad\uc158\uc73c\ub85c \ucc98\ub9ac\ub429\ub2c8\ub2e4. \uc77d\uae30\uc758 \uacbd\uc6b0, CockroachDB\ub294 \uc774 \ub450 \uac00\uc9c0\ub97c \ubaa8\ub450 \uc81c\uacf5\ud569\ub2c8\ub2e4:<\/span><\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li style=\"font-weight: 400;\"><b>\uac15\ub825\ud55c \uc77c\uad00\uc131 <\/b><span style=\"font-weight: 400;\">(\"\ubd80\uc2e4\ud558\uc9c0 \uc54a\uc74c\") <\/span><b>\uc77d\uc2b5\ub2c8\ub2e4<\/b><span style=\"font-weight: 400;\">: \uae30\ubcf8\uc801\uc774\uace0 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \uc77d\uae30 \uc720\ud615\uc73c\ub85c, \uae30\ubcf8\uac12\uc740<\/span><a href=\"https:\/\/www.cockroachlabs.com\/docs\/v22.2\/architecture\/replication-layer#leases\"> <span style=\"font-weight: 400;\">\uc784\ub300\uc778<\/span><\/a><span style=\"font-weight: 400;\"> \uc5d0\uc11c \uc77d\uae30 \ud2b8\ub79c\uc7ad\uc158\uc774 \uc2dc\uc791\ub418\uae30 \uc804\uc5d0 \ucee4\ubc0b\ub41c \ubaa8\ub4e0 \uc4f0\uae30\ub97c \ud655\uc778\ud569\ub2c8\ub2e4. \ud56d\uc0c1 \uc815\ud655\ud558\uace0 \ucd5c\uc2e0\uc758 \ub370\uc774\ud130\ub97c \ubc18\ud658\ud569\ub2c8\ub2e4.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>\uc624\ub798\ub41c \uc77d\uae30<\/b><span style=\"font-weight: 400;\">: \uc77d\uae30 \uc18d\ub3c4\ub97c \ub192\uc774\ub294 \ub300\uc2e0 \uc57d\uac04 \uc624\ub798\ub41c \ub370\uc774\ud130\ub97c \uc77d\uc744 \uc218 \uc788\ub294 \uc0c1\ud669\uc5d0\uc11c \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc77d\uae30 \uc804\uc6a9 \ud2b8\ub79c\uc7ad\uc158\uc5d0\uc11c\ub9cc \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/span><i><span style=\"font-weight: 400;\">\uc2dc\uc2a4\ud15c \uc2dc\uac04 \uae30\uc900 <\/span><\/i><span style=\"font-weight: 400;\">\uc808\uc744 \ucd94\uac00\ud569\ub2c8\ub2e4. \ub85c\uceec \ubcf5\uc81c\ubcf8\uc5d0\uc11c \ud0c0\uc784\uc2a4\ud0ec\ud504\ubcf4\ub2e4 \ub192\uc9c0 \uc54a\uc740 \ud0c0\uc784\uc2a4\ud0ec\ud504\ub85c \uc77d\uc74c\uc73c\ub85c\uc368 \uc77c\uad00\uc131\uc744 \ubcf4\uc7a5\ud558\ubbc0\ub85c \uc784\ub300 \uc18c\uc720\uc790\ub97c \uac70\uce60 \ud544\uc694\uac00 \uc5c6\uc2b5\ub2c8\ub2e4.<\/span><a href=\"https:\/\/www.cockroachlabs.com\/docs\/v22.2\/architecture\/transaction-layer#closed-timestamps\"> <span style=\"font-weight: 400;\">\ub2eb\ud78c \ud0c0\uc784\uc2a4\ud0ec\ud504<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Couchbase\ub294 \uaca9\ub9ac \uc218\uc900\uc744 \uace0\ub824\ud574\uc57c \ud558\ub294 \ub9e4\uc6b0 \uc77c\uad00\ub41c \ub370\uc774\ud130\ubca0\uc774\uc2a4\uc785\ub2c8\ub2e4. <\/span><i><span style=\"font-weight: 400;\">\ub2e8\uc870\ub85c\uc6b4 \uc6d0\uc790 \ubcf4\uae30 <\/span><\/i><span style=\"font-weight: 400;\">\ub97c \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. Couchbase\ub294 ACID \ud2b8\ub79c\uc7ad\uc158\uc744 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\uc744 \ub54c \uc624\ub798\ub41c \ub370\uc774\ud130\ub97c \ubc18\ud658\ud560 \uc218 \uc788\uc9c0\ub9cc \uc774\ub294 \uac1c\ubc1c\uc790\uac00 \uc81c\uc5b4\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.\u00a0\u00a0<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">\uc5b4\ub5a4 \ub370\uc774\ud130\ubca0\uc774\uc2a4\ub97c \uc120\ud0dd\ud574\uc57c \ud558\ub098\uc694?<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">100%\uc758 \ub370\uc774\ud130\uc5d0 \ub300\ud55c \ub0b4\uad6c\uc131 \uc788\ub294 \ud2b8\ub79c\uc7ad\uc158\uc774 \uc8fc\uc694 \uad00\uc2ec\uc0ac\ub77c\uba74(\ub610\ub294 \uc720\uc77c\ud55c \uad00\uc2ec\uc0ac\ub77c\uba74) CockroachDB\ub97c \uc120\ud0dd\ud558\uc138\uc694. \uadf8\ub7ec\ub098 \uad00\uacc4\ud615 \uc124\uacc4\uc640 \ubaa8\ub180\ub9ac\uc2dd \uc124\uce58\ub85c \uc778\ud574 \uc720\uc5f0\uc131\uc774 \ub5a8\uc5b4\uc9c0\uae30 \ub54c\ubb38\uc5d0 \ud2b8\ub79c\uc7ad\uc158 \ubc0f \uc2a4\ud1a0\ub9ac\uc9c0 \ud655\uc7a5\uc744 \uc81c\uc678\ud558\uace0\ub294 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \uc131\ub2a5 \ubc0f \ud655\uc7a5 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub9de\uac8c \uc27d\uac8c \uc870\uc815\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4. \uc774 \ub54c\ubb38\uc5d0 CockroachDB\ub294 \uc608\uc0c1\uce58 \ubabb\ud55c \uc131\ub2a5 \ubb38\uc81c\uac00 \ubc1c\uc0dd\ud560 \uc218 \uc788\uc73c\uba70, \uc774\uc5d0 \ub300\ud55c \uc720\uc77c\ud55c \ud574\uacb0\ucc45\uc740 \uc2a4\ud1a0\ub9ac\uc9c0\uc758 \uc218\ud3c9\uc801 \ud655\uc7a5 \uc678\uc5d0 RAM \ub610\ub294 CPU\ub97c \ucd94\uac00\ud558\uc5ec \uc218\uc9c1\uc801\uc73c\ub85c \ud655\uc7a5\ud558\ub294 \uac83\ubfd0\uc785\ub2c8\ub2e4. \uc2a4\ud0a4\ub9c8 \uae30\ubc18 \uc124\uacc4\ub97c \uc0ac\uc6a9\ud558\uae30 \ub54c\ubb38\uc5d0 \ub370\uc774\ud130\ubca0\uc774\uc2a4\uac00 \ubc30\ud3ec\ub41c \ud6c4\uc5d0\ub294 \ubc1c\uc804 \ubc0f \ubcc0\uacbd\uc774 \ub354 \uc5b4\ub824\uc6cc\uc9d1\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\uc131\ub2a5, \uc720\uc5f0\uc131, \uc560\ud50c\ub9ac\ucf00\uc774\uc158 \uc801\uc751\uc131, \uc0ac\uc6a9\uc790 \ub9cc\uc871\ub3c4, \uc9c0\ub9ac\uc801 \ud655\uc7a5\uc131, \ube44\uc6a9 \ud6a8\uc728\uc131 \ub610\ub294 \uc774\ub3d9\uc131\uc774 \uc911\uc694\ud55c \uacbd\uc6b0 Couchbase\ub97c \uc0ac\uc6a9\ud558\uc138\uc694. Couchbase\ub294 \ud658\uacbd\uc758 \ud6a8\uc728\uc131\uc744 \uadf9\ub300\ud654\ud560 \uc218 \uc788\ub294 \ub2e4\uc591\ud55c \uc131\ub2a5 \ud29c\ub2dd \ubc0f \uc778\ud504\ub77c \ucd5c\uc801\ud654 \uae30\ub2a5\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. Couchbase\ub294 \ubd80\ud558\uac00 \ub9ce\uac70\ub098 \uaddc\ubaa8\uac00 \ucee4\uc838\ub3c4 \uc131\ub2a5\uc774 \uc800\ud558\ub418\uc9c0 \uc54a\ub294 \ub180\ub78d\ub3c4\ub85d \uc9e7\uc740 \uc9c0\uc5f0 \uc2dc\uac04\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c Couchbase\ub294 \ub354 \uc801\uc740 \ub9ac\uc18c\uc2a4\ub85c \ub354 \ub9ce\uc740 \uc791\uc5c5\uc744 \uc218\ud589\ud560 \uc218 \uc788\uc73c\uba70 \uc804\ubc18\uc801\uc73c\ub85c \ube44\uc6a9 \ud6a8\uc728\uc131\ub3c4 \ub192\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Couchbase\uc758 JSON \uae30\ubc18 \uc124\uacc4\ub97c \ud1b5\ud574 \uac1c\ubc1c\ud300\uc740 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \ub370\uc774\ud130 \uad6c\uc870\ub97c \uc81c\uc5b4\ud560 \uc218 \uc788\uc73c\uba70, \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \ud504\ub85c\ub355\uc158\uc5d0 \ub4e4\uc5b4\uac04 \ud6c4\uc5d0\ub3c4 \uc774\ub7ec\ud55c \uad6c\uc870\ub97c \uc9c0\uc18d\uc801\uc73c\ub85c \uc218\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. 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