{"id":7153,"date":"2019-07-03T18:54:18","date_gmt":"2019-07-04T01:54:18","guid":{"rendered":"https:\/\/www.couchbase.com\/blog\/?p=7153"},"modified":"2021-07-13T00:46:05","modified_gmt":"2021-07-13T07:46:05","slug":"a-glimpse-of-fts-performance-improvements-in-6-5-0-part-1","status":"publish","type":"post","link":"https:\/\/www.couchbase.com\/blog\/ko\/a-glimpse-of-fts-performance-improvements-in-6-5-0-part-1\/","title":{"rendered":"6.5.0\uc758 FTS \uc131\ub2a5 \uac1c\uc120 \uc0ac\ud56d \uc0b4\ud3b4\ubcf4\uae30 - 1\ubd80"},"content":{"rendered":"

Ever since the nimbler, refined `<\/span>scorch<\/span><\/a>` indexing format released in Couchbase 6.0.0, the FTS team has been pretty excited about the future optimisation potential unlocked with the newer indexing scheme. With the 6.5.0 release, we have essentially embarked on a never ending journey of optimising and tuning the performance of the Full Text Search engine.<\/span><\/p>\n

 <\/p>\n

\uace7 \ucd9c\uc2dc\ub420 6.5.0 \ubc84\uc804\uc5d0 \ub3c4\uc785\ub418\ub294 \ud765\ubbf8\ub85c\uc6b4 \ucd5c\uc801\ud654 \uae30\ub2a5\uc5d0 \ub300\ud574 \uba87 \uac00\uc9c0 \uc18c\uac1c\ud574\ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4.\u00a0<\/span><\/p>\n

 <\/p>\n

\uc9c0\ub9ac\uc801 \ucffc\ub9ac <\/b><\/h4>\n

FTS\ub294 \ub450 \uac00\uc9c0 \uc720\ud615\uc758 \uc9c0\ub9ac\uc801 \ucffc\ub9ac\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4. <\/span>\uc810 \uac70\ub9ac \ubc0f \uacbd\uacc4 \uc0ac\uac01\ud615<\/span><\/a>. \uc774 \uae30\ub2a5\uc774 \ucc98\uc74c \ub3c4\uc785\ub41c \uc774\ub798\ub85c \uc774 \uae30\ub2a5\uc744 \uc218\uc815\ud558\uace0 \uac1c\uc120\ud560 \uae30\ud68c\uac00 \uc5c6\uc5c8\uc9c0\ub9cc, \ucffc\ub9ac \uad6c\ud604\uc5d0 \uba54\ubaa8\ub9ac\uc640 CPU \uc0ac\uc6a9\ub960 \uce21\uba74\uc5d0\uc11c \uac1c\uc120\uc774 \ud544\uc694\ud558\ub2e4\ub294 \uac83\uc740 \uac70\uc758 \ud655\uc2e4\ud588\uc2b5\ub2c8\ub2e4. \uc88b\uc740 \uc18c\uc2dd\uc740 6.5.0\uc758 \ubaa8\ub4e0 \uc131\ub2a5 \uac1c\uc120 \uc0ac\ud56d \uc911\uc5d0\uc11c \uc9c0\uc5ed \ubcc0\uacbd\uc73c\ub85c \uac00\uc7a5 \ud070 \uac1c\uc120\uc774 \uc774\ub8e8\uc5b4\uc84c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4.<\/span><\/p>\n

 <\/p>\n

\uae30\ud68c<\/b><\/h5>\n

\uc9c0\ub9ac\uc801 \ucffc\ub9ac\uc758 \ub192\uc740 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ubd84\uc11d\ud558\ub294 \uacfc\uc815\uc5d0\uc11c \uc544\uc9c1 \uac1c\ubc1c\ub418\uc9c0 \uc54a\uc740 \uc5c4\uccad\ub09c \uc131\ub2a5 \ud29c\ub2dd \uc7a0\uc7ac\ub825\uc774 \uc788\ub2e4\ub294 \uac83\uc774 \ubd84\uba85\ud574\uc84c\uc2b5\ub2c8\ub2e4. \uc810 \uac70\ub9ac\uc640 \uacbd\uacc4 \uc0ac\uac01\ud615 \ucffc\ub9ac \uc720\ud615 \ubaa8\ub450\uc5d0\uc11c \uc778\ub371\uc2f1 \uc5d4\uc9c4(<\/span>bleve<\/span><\/a>)\ub294 \uc8fc\uc5b4\uc9c4 \ucffc\ub9ac \ub9e4\uac1c\ubcc0\uc218\uc5d0\uc11c \uac80\uc0c9 \uae30\uc900\uc744 \ucda9\uc871\ud558\ub294 \uac80\uc0c9\ud560 \uc9c0\ub9ac\uc801 \uc704\uce58\uc758 \ubc94\uc704(\ud6c4\ubcf4 \uc6a9\uc5b4)\ub97c \ud30c\uc545\ud574\uc57c \ud569\ub2c8\ub2e4. Bleve\ub294 \ud2b9\uc815 \uc218\ud559\uc801 \ub2e8\uacc4\ub97c \ud1b5\ud574 \uc774\ub7ec\ud55c \ud6c4\ubcf4 \uc9c0\uc5ed \uc6a9\uc5b4\ub97c \ub3c4\ucd9c\ud569\ub2c8\ub2e4.<\/span><\/p>\n

\ud558\uc9c0\ub9cc \uc218\ud559\uc801\uc73c\ub85c \uc0dd\uc131\ub41c \ud6c4\ubcf4 \uc9c0\uc5ed \uc6a9\uc5b4\uc5d0 \ub300\ud55c \ud544\ud130\ub9c1\uc740 \uc804\ud600 \uc218\ud589\ub418\uc9c0 \uc54a\uc558\uc2b5\ub2c8\ub2e4. \uc989, \ubc31\uadf8\ub77c\uc6b4\ub4dc\uc5d0\uc11c \uc758\ub3c4\ud558\uc9c0 \uc54a\uc740 \uac80\uc0c9 \uacf5\uac04\uc758 \uc99d\ud3ed\uc774 \uc77c\uc5b4\ub098\uace0 \uc788\uc5c8\ub358 \uac83\uc785\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc774\ub85c \uc778\ud574 \ubd88\ud544\uc694\ud558\uac70\ub098 \uad00\ub828 \uc5c6\ub294 \uc6a9\uc5b4 \uac80\uc0c9 \ubc18\ubcf5\uc790(\uc608: \uc0c9\uc778\uc5d0 \uc874\uc7ac\ud558\uc9c0\ub3c4 \uc54a\ub294 \uc6a9\uc5b4)\uac00 \ub108\ubb34 \ub9ce\uc774 \uc0dd\uc131\ub418\uc5b4 \uad00\ub9ac\ud574\uc57c \ud560 \ub0b4\ubd80 \uc784\uc2dc \uac1d\uccb4\uac00 \ub9ce\uc544\uc9c0\uace0 \uac00\ube44\uc9c0 \uceec\ub809\ud130\uc5d0 \ud070 \uc624\ubc84\ud5e4\ub4dc\uac00 \ucd94\uac00\ub418\uc5c8\uc2b5\ub2c8\ub2e4.\u00a0<\/span><\/p>\n

\uc751\ub2f5<\/b><\/h5>\n

\uc774 \uacbd\uc6b0, \uae30\ubcf8\uc801\uc73c\ub85c \uc218\ud559\uc801\uc73c\ub85c \uc0dd\uc131\ub41c \uc9c0\ub9ac\uc801 \ud3ec\uc778\ud2b8\uac00 \uc6a9\uc5b4 \uc0ac\uc804\uc5d0 \uc874\uc7ac\ud558\ub294\uc9c0 \uac80\uc99d\ud558\uace0 \uc6a9\uc5b4 \uc0ac\uc804\uc5d0 \uc874\uc7ac\ud558\ub294 \uacbd\uc6b0\uc5d0\ub9cc \uc790\uaca9\uc744 \ubd80\uc5ec\ud558\ub294 \uc9c0\ub9ac\uc801 \uc6a9\uc5b4 \ud544\ud130\ub9c1\uc744 \uc801\uc6a9\ud558\uc5ec \ucd5c\uc801\ud654\ud588\uc2b5\ub2c8\ub2e4. \uc774 \uc811\uadfc \ubc29\uc2dd\uc740 \ubc18\uc804\ub41c \uc778\ub371\uc2a4\uc5d0 \ub300\ud574 \uac80\uc0c9\ub418\ub294 \ud6c4\ubcf4 \uc9c0\ub9ac\uc801 \uc704\uce58\/\uc6a9\uc5b4\uc758 \uc218\ub97c \ud06c\uac8c \uc904\uc600\uace0, \ub530\ub77c\uc11c \uc9c0\ub9ac\uc801 \ucffc\ub9ac\uc758 \uc9c0\uc5f0 \uc2dc\uac04\uacfc \ucc98\ub9ac\ub7c9 \uc218\uce58\ub97c \ubaa8\ub450 \uac1c\uc120\ud588\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n

\ubcf4\uc0c1<\/b><\/h5>\n

\uc774\ub97c \ud1b5\ud574 \ucd5c\ub300 <\/span>6X<\/b> \ub0b4\ubd80 \ubca4\uce58\ub9c8\ud06c\uc5d0\uc11c \uc9c0\ub9ac\uc801 \ucffc\ub9ac\uc5d0 \ub300\ud55c \uc9c0\uc5f0 \uc2dc\uac04 \uac10\uc18c\ub97c \ud655\uc778\ud588\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n

 <\/p>\n

\ud37c\uc9c0 \ucffc\ub9ac <\/b><\/h4>\n

\uc0ac\uc804 <\/span>scorch<\/span><\/a> \uc77c \ub3d9\uc548 <\/span>\ud37c\uc9c0\/\ud3b8\uc9d1 \uac70\ub9ac<\/span><\/a> \ucffc\ub9ac\uac00 \uc218\uc2e0\ub418\uba74 \uc0c9\uc778 \uc5d4\uc9c4\uc740 \ucffc\ub9ac\uc5d0\uc11c \uc8fc\uc5b4\uc9c4 \ud544\ub4dc\uc5d0 \ub300\ud574 \uc0c9\uc778\ub41c \ubaa8\ub4e0 \uc6a9\uc5b4\ub97c \uac80\ud1a0\ud558\uc5ec \ud3b8\uc9d1 \uac70\ub9ac\ub97c \uacc4\uc0b0\ud558\uc5ec \ud604\uc7ac \uc6a9\uc5b4\uac00 \ucffc\ub9ac \uc6a9\uc5b4\uc640 \uc694\uccad\ub41c \ud3b8\uc9d1 \uac70\ub9ac \ub0b4\uc5d0 \uc788\ub294\uc9c0 \uc5ec\ubd80\ub97c \ud30c\uc545\ud569\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \ud574\ub2f9 \ud3b8\uc9d1 \uac70\ub9ac \uae30\uc900\uc744 \ucda9\uc871\ud558\ub294 \uacbd\uc6b0, \uc5ed \uc778\ub371\uc2a4\uc5d0\uc11c \ud574\ub2f9 \uc6a9\uc5b4\ub97c \uc870\ud68c\ud558\uc5ec \ud574\ub2f9 \uc6a9\uc5b4\uac00 \ub098\ud0c0\ub098\ub294 \ubb38\uc11c \ubaa9\ub85d\uacfc \ucffc\ub9ac\uc5d0\uc11c \uc9c0\uc815\ud55c \ub300\ub85c \ud544\uc694\ud55c \uc138\ubd80 \uc815\ubcf4\ub97c \uac00\uc838\uc635\ub2c8\ub2e4. (\uc6a9\uc5b4 \ubca1\ud130, \ubb38\uc11c \uac12 <\/span>\ub4f1<\/span><\/a>)\u00a0<\/span><\/p>\n

 <\/p>\n

\ucd5c\uadfc\uc758 \uc2a4\ucf54\uce58 \uc778\ub371\uc2f1 \ud3ec\ub9f7\uc740 FiniteStateTransducers(<\/span>FST<\/span><\/a>)\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc6a9\uc5b4 \uc0ac\uc804\uc744 \uad6c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/span>DFA<\/span><\/a> \uc18d\uc131. \uc774\ub97c \ud1b5\ud574 \ucffc\ub9ac\uc5d0\uc11c \uc8fc\uc5b4\uc9c4 \ud3b8\uc9d1 \uac70\ub9ac \ub0b4\uc5d0\uc11c \ud6c4\ubcf4 \uc6a9\uc5b4\ub97c \ucc3e\ub294 \ucd08\ubcf4\uc790\uc758 \uc811\uadfc \ubc29\uc2dd\uc744 \uac1c\uc120\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n

 <\/p>\n

\uc811\uadfc \ubc29\uc2dd\uc740 <\/span>L<\/b>\uc5d0\ube10\uc288\ud14c\uc778 <\/span>A<\/b>utomaton(<\/span>LA<\/span><\/a>)\ub97c \ud3b8\uc9d1 \uac70\ub9ac \ucffc\ub9ac\uc5d0\uc11c \uc8fc\uc5b4\uc9c4 \uc6a9\uc5b4\uc5d0 \ub300\ud574 \ubc18\ud658\ud569\ub2c8\ub2e4. \uc774 LA\ub294 \ucffc\ub9ac\uc5d0\uc11c \uc8fc\uc5b4\uc9c4 \"d\"\uc758 \ud3b8\uc9d1 \uac70\ub9ac\uc5d0 \uc788\ub294 \ubaa8\ub4e0 \uc6a9\uc5b4\ub97c \uc77c\uce58\uc2dc\ud0a4\ub294 \uc18d\uc131\uc744 \uac00\uc9c4 DFA\uc785\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc774 LA DFA\ub294 \ucffc\ub9ac\uc758 \uc77c\ubd80\ub85c \ucd5c\uc885\uc801\uc73c\ub85c \uac80\uc0c9\ud574\uc57c \ud558\ub294 \ud6c4\ubcf4 \uc6a9\uc5b4\ub97c \ud544\ud130\ub9c1\ud558\uae30 \uc704\ud574 \uc6d0\ub798 \uc0c9\uc778\ub41c \uc6a9\uc5b4\uc9d1\/\uc6a9\uc5b4 \uc0ac\uc804(FST DFA)\uacfc \ud568\uaed8 \ub2e8\uacc4\uc801\uc73c\ub85c \ub610\ub294 \uad50\ucc28\ud558\ub3c4\ub85d \ub9cc\ub4e4\uc5b4\uc9d1\ub2c8\ub2e4.<\/span><\/p>\n

 <\/p>\n

\uae30\ud68c<\/b><\/h5>\n

6.0 \ub9b4\ub9ac\uc2a4\uae4c\uc9c0\ub294 \ub4e4\uc5b4\uc624\ub294 \ucffc\ub9ac\ub9c8\ub2e4 LA DFA\ub97c \uc0c8\ub85c \ub9cc\ub4e4\uc5c8\ub294\ub370, \uc774 LA DFA \uad6c\ucd95 \ubd80\ubd84\uc774 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uacfc DFA \uad6c\ucd95 \uc18d\ub3c4 \uce21\uba74\uc5d0\uc11c \ubd80\ub2f4\uc774 \ub418\ub294 \uac83\uc73c\ub85c \ub098\ud0c0\ub0ac\uc2b5\ub2c8\ub2e4.<\/span><\/p>\n

\uc751\ub2f5<\/b><\/h5>\n

\uc6d0\uc791\uc5d0\uc11c \uc601\uac10\uc744 \ubc1b\uc544 <\/span>\uc885\uc774<\/span><\/a> \ube14\ub85c\uadf8 \uac8c\uc2dc\ubb3c - <\/span>\ub808\ubca4\uc288\ud0c0\uc778<\/span><\/a>\uc640 \ub2ec\ub9ac, \ucd5c\uc2e0 \ub808\ubca4\uc288\ud0c0\uc778 \uc624\ud1a0\ub9c8\ud1a4 \uad6c\uc870\ub294 2\ub2e8\uacc4 \uc811\uadfc \ubc29\uc2dd\uc744 \ucde8\ud569\ub2c8\ub2e4. \uccab \ubc88\uc9f8 \ub2e8\uacc4\uc5d0\uc11c\ub294 \uc0ac\uc804 \uc815\uc758\ub41c* \ud3b8\uc9d1 \uac70\ub9ac \uc9d1\ud569\uc5d0 \ub300\ud55c \ud30c\ub77c\uba54\ud2b8\ub9ad DFA\ub97c \ubbf8\ub9ac \uacc4\uc0b0\ud558\uba70, \uc774 \ubd80\ubd84\uc740 \ucffc\ub9ac \ubb38\uc790\uc5f4\uacfc \uc644\uc804\ud788 \ub3c5\ub9bd\uc801\uc774\ubbc0\ub85c \ubbf8\ub9ac \uacc4\uc0b0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub450 \ubc88\uc9f8 \ub2e8\uacc4\uc5d0\uc11c\ub294 \uc774 \ud30c\ub77c\uba54\ud2b8\ub9ad DFA\ub97c \uc0ac\uc6a9\ud558\uc5ec \ucffc\ub9ac\ubcc4 LA DFA\ub97c \uacc4\uc0b0\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c DFA \uad6c\uc131\uc774 \ub9e4\uc6b0 \ube60\ub974\uace0 \uba54\ubaa8\ub9ac \uce5c\ud654\uc801\uc785\ub2c8\ub2e4.<\/span><\/p>\n

\ubcf4\uc0c1<\/b><\/h5>\n

Go \ub9c8\uc774\ud06c\ub85c \ubca4\uce58\ub9c8\ud06c\uc5d0 \ub530\ub974\uba74 \ucd5c\uc2e0 \uad6c\ud604\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <\/span>5X<\/b> \ub354 \ube60\ub974\uace0 <\/span>12X<\/b> \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc774 \uac1c\uc120\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \ub0b4\ubd80 \uc131\ub2a5 \ud14c\uc2a4\ud2b8\uc5d0\uc11c \ub2e4\uc74c\uacfc \uac19\uc740 \uacb0\uacfc\ub97c \uc5bb\uc5c8\uc2b5\ub2c8\ub2e4. ~50%<\/strong> \ucffc\ub9ac \ucc98\ub9ac\ub7c9 \uac1c\uc120.<\/span><\/p>\n

 <\/p>\n

\uc5ec\uae30\uae4c\uc9c0 \uc2a4\ud06c\ub864\ud574 \uc8fc\uc154\uc11c \uac10\uc0ac\ud569\ub2c8\ub2e4.\u00a0<\/span><\/p>\n

\uc5ec\ub7ec\ubd84\uc758 \uc9d1\uc911\ub825\uc744 \ub192\uc774\uae30 \uc704\ud574 \uc5ec\uae30\uc11c \uc7a0\uc2dc \uba48\ucd94\uace0 \ub098\uba38\uc9c0 \uc774\uc57c\uae30\ub294 2\ubd80\uc5d0\uc11c \ub2e4\ub8e8\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ud30c\ud2b8\uc5d0\uc11c\ub294 \uc22b\uc790 \ubc94\uc704, \uc811\ub450\uc0ac, \uc640\uc77c\ub4dc\uce74\ub4dc \ub4f1\uacfc \uac19\uc740 \ucffc\ub9ac\ubfd0\ub9cc \uc544\ub2c8\ub77c FTS\uc5d0 gRPC\ub97c \ub3c4\uc785\ud588\uc744 \ub54c \uc5bb\uc744 \uc218 \uc788\ub294 \uc131\ub2a5 \ud5a5\uc0c1\uc5d0 \ub300\ud574 \ub2e4\ub8f0 \uac83\uc785\ub2c8\ub2e4.<\/span><\/p>\n

 <\/p>\n

\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0… \ud30c\ud2b8 2<\/a><\/em><\/strong><\/h5>\n

 <\/p>\n

{\uc0ac\uc804 \uc815\uc758\ub41c* \ud3b8\uc9d1 \uac70\ub9ac => \ud604\uc7ac FTS\ub294 \ucd5c\ub300 2\uae4c\uc9c0 \ud3b8\uc9d1 \uac70\ub9ac\ub97c \uc9c0\uc6d0\ud569\ub2c8\ub2e4. \uc989, 1\uacfc 2\ub9cc \uc9c0\uc6d0\ud569\ub2c8\ub2e4.\u00a0<\/span><\/p>\n

\uadf8 \uc8fc\ub41c \uc774\uc720\ub294 \uc801\ub2f9\ud55c \ud06c\uae30\uc758 \ubb38\uc11c \ub9d0\ubb49\uce58\uc5d0\ub294 \ucffc\ub9ac \uc6a9\uc5b4\uc640 \ud3b8\uc9d1 \uac70\ub9ac\uac00 2\ub97c \ucd08\uacfc\ud558\ub294 \uc6a9\uc5b4\uac00 \ub108\ubb34 \ub9ce\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \ub354 \uc774\uc0c1\uc758 \uc778\ub371\uc2a4 \uc870\ud68c\ub294 \uac80\uc0c9 \uad00\ub828\uc131\uc774 \ub5a8\uc5b4\uc9c0\uace0 \ub9ac\uc18c\uc2a4\ub97c \ub9e4\uc6b0 \ub9ce\uc774 \uc0ac\uc6a9\ud558\uac8c \ub429\ub2c8\ub2e4.}<\/span><\/p>","protected":false},"excerpt":{"rendered":"

Ever since the nimbler, refined `scorch` indexing format released in Couchbase 6.0.0, the FTS team has been pretty excited about the future optimisation potential unlocked with the newer indexing scheme. 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