Моя база данных MongoDB работает очень медленно, и я не могу понять, в чем проблема.Из файла журнала /var/log/mongodb/mongod.log мне кажется, что:
1) Запросы выполняются более 100 мс, даже если они используют индексы.
2)база данных постоянно запрашивается, хотя я только смотрю на сайт, но не взаимодействую с ним.
3) Кажется, что для одного пользователя указано несколько соединений.
Я быблагодарен за любые предложения или идеи, как выяснить, что я делаю неправильно и как уменьшить нагрузку на мой плохой сервер!
Система:
METEOR@1.6.0.1, работающая на цифровомOcean droplet (Ubuntu 16.04)
Развертывание с использованием Phusion Passenger 5.2.3
MongoDB версии 3.4.1
Вот типичная выдержка из файла журнала:
2018-04-25T10:59:07.986+0000 I COMMAND [conn96] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 36, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:7 nreturned:12 reslen:1536157 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 105ms
2018-04-25T10:59:08.002+0000 I COMMAND [conn98] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 12, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:8 nreturned:12 reslen:2226386 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 131ms
2018-04-25T10:59:08.055+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user3_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:83336218087 keysExamined:101 docsExamined:101 numYields:10 nreturned:101 reslen:13408742 locks:{ Global: { acquireCount: { r: 22 } }, MMAPV1Journal: { acquireCount: { r: 11 } }, Database: { acquireCount: { r: 11 } }, Collection: { acquireCount: { R: 11 } } } protocol:op_query 162ms
2018-04-25T10:59:13.826+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:84388091558 keysExamined:109 docsExamined:101 numYields:9 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 20 } }, MMAPV1Journal: { acquireCount: { r: 10 } }, Database: { acquireCount: { r: 10 } }, Collection: { acquireCount: { R: 10 } } } protocol:op_query 167ms
2018-04-25T10:59:16.226+0000 I COMMAND [conn96] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 48, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:7 nreturned:12 reslen:1812760 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 137ms
2018-04-25T10:59:16.231+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 84, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:7 nreturned:12 reslen:1516442 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 119ms
2018-04-25T10:59:16.237+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:8 nreturned:12 reslen:1671866 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 149ms
2018-04-25T10:59:16.288+0000 I COMMAND [conn94] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user2_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85501389604 keysExamined:101 docsExamined:101 numYields:8 nreturned:101 reslen:13271844 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 187ms
2018-04-25T10:59:18.072+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user3_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:82711174454 keysExamined:101 docsExamined:101 numYields:9 nreturned:101 reslen:13408742 locks:{ Global: { acquireCount: { r: 20 } }, MMAPV1Journal: { acquireCount: { r: 10 } }, Database: { acquireCount: { r: 10 } }, Collection: { acquireCount: { R: 10 } } } protocol:op_query 171ms
2018-04-25T10:59:18.077+0000 I COMMAND [conn94] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:83227284863 keysExamined:101 docsExamined:101 numYields:8 nreturned:101 reslen:13656126 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 153ms
2018-04-25T10:59:18.173+0000 I COMMAND [conn96] command mydb.mycollection command: getMore { getMore: 85501389604, collection: "mycollection", batchSize: 1000 } originatingCommand: { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user2_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85501389604 keysExamined:39 docsExamined:38 cursorExhausted:1 numYields:6 nreturned:38 reslen:7396099 locks:{ Global: { acquireCount: { r: 14 } }, MMAPV1Journal: { acquireCount: { r: 7 } }, Database: { acquireCount: { r: 7 } }, Collection: { acquireCount: { R: 7 } } } protocol:op_query 138ms
2018-04-25T10:59:23.882+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 132, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:9 nreturned:1 reslen:852679 locks:{ Global: { acquireCount: { r: 20 } }, MMAPV1Journal: { acquireCount: { r: 10 } }, Database: { acquireCount: { r: 10 } }, Collection: { acquireCount: { R: 10 } } } protocol:op_query 149ms
2018-04-25T10:59:23.958+0000 I COMMAND [conn94] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85689537829 keysExamined:109 docsExamined:101 numYields:17 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 36 } }, MMAPV1Journal: { acquireCount: { r: 18 } }, Database: { acquireCount: { r: 18 } }, Collection: { acquireCount: { R: 18 } } } protocol:op_query 285ms
2018-04-25T10:59:26.235+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 120, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:5 nreturned:12 reslen:2429543 locks:{ Global: { acquireCount: { r: 12 } }, MMAPV1Journal: { acquireCount: { r: 6 } }, Database: { acquireCount: { r: 6 } }, Collection: { acquireCount: { R: 6 } } } protocol:op_query 123ms
2018-04-25T10:59:28.007+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 12, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:7 nreturned:12 reslen:2226386 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 124ms
2018-04-25T10:59:28.258+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:84936294363 keysExamined:101 docsExamined:101 numYields:10 nreturned:101 reslen:13656126 locks:{ Global: { acquireCount: { r: 22 } }, MMAPV1Journal: { acquireCount: { r: 11 } }, Database: { acquireCount: { r: 11 } }, Collection: { acquireCount: { R: 11 } } } protocol:op_query 254ms
2018-04-25T10:59:33.777+0000 I COMMAND [conn94] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:81855053356 keysExamined:109 docsExamined:101 numYields:7 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 110ms
2018-04-25T10:59:36.212+0000 I COMMAND [conn96] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 48, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:7 nreturned:12 reslen:1812760 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 104ms
2018-04-25T10:59:36.295+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user2_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:81865981454 keysExamined:101 docsExamined:101 numYields:9 nreturned:101 reslen:13271844 locks:{ Global: { acquireCount: { r: 20 } }, MMAPV1Journal: { acquireCount: { r: 10 } }, Database: { acquireCount: { r: 10 } }, Collection: { acquireCount: { R: 10 } } } protocol:op_query 181ms
2018-04-25T10:59:38.049+0000 I COMMAND [conn98] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 24, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:8 nreturned:12 reslen:1303021 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 161ms
2018-04-25T10:59:38.087+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 36, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:9 nreturned:12 reslen:1536157 locks:{ Global: { acquireCount: { r: 20 } }, MMAPV1Journal: { acquireCount: { r: 10 } }, Database: { acquireCount: { r: 10 } }, Collection: { acquireCount: { R: 10 } } } protocol:op_query 199ms
2018-04-25T10:59:38.113+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] }, sort: { name_sort: 1 }, skip: 12, limit: 12 } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } keysExamined:134 docsExamined:133 hasSortStage:1 cursorExhausted:1 numYields:9 nreturned:12 reslen:2226386 locks:{ Global: { acquireCount: { r: 20 } }, MMAPV1Journal: { acquireCount: { r: 10 } }, Database: { acquireCount: { r: 10 } }, Collection: { acquireCount: { R: 10 } } } protocol:op_query 226ms
2018-04-25T10:59:38.300+0000 I COMMAND [conn94] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:81961357963 keysExamined:101 docsExamined:101 numYields:10 nreturned:101 reslen:13656126 locks:{ Global: { acquireCount: { r: 22 } }, MMAPV1Journal: { acquireCount: { r: 11 } }, Database: { acquireCount: { r: 11 } }, Collection: { acquireCount: { R: 11 } } } protocol:op_query 327ms
2018-04-25T10:59:43.808+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:81883376628 keysExamined:109 docsExamined:101 numYields:8 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 143ms
2018-04-25T11:00:03.764+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:83376889974 keysExamined:109 docsExamined:101 numYields:7 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 111ms
2018-04-25T11:00:13.787+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:84784676389 keysExamined:109 docsExamined:101 numYields:6 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 14 } }, MMAPV1Journal: { acquireCount: { r: 7 } }, Database: { acquireCount: { r: 7 } }, Collection: { acquireCount: { R: 7 } } } protocol:op_query 118ms
2018-04-25T11:00:43.795+0000 I COMMAND [conn96] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:82406146359 keysExamined:109 docsExamined:101 numYields:6 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 14 } }, MMAPV1Journal: { acquireCount: { r: 7 } }, Database: { acquireCount: { r: 7 } }, Collection: { acquireCount: { R: 7 } } } protocol:op_query 126ms
2018-04-25T11:00:58.105+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user3_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:82192722075 keysExamined:101 docsExamined:101 numYields:7 nreturned:101 reslen:13408742 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 103ms
2018-04-25T11:01:18.097+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user3_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:84413219787 keysExamined:101 docsExamined:101 numYields:6 nreturned:101 reslen:13408742 locks:{ Global: { acquireCount: { r: 14 } }, MMAPV1Journal: { acquireCount: { r: 7 } }, Database: { acquireCount: { r: 7 } }, Collection: { acquireCount: { R: 7 } } } protocol:op_query 111ms
2018-04-25T11:01:23.823+0000 I COMMAND [conn98] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:82892140473 keysExamined:109 docsExamined:101 numYields:7 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 145ms
2018-04-25T11:02:03.784+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:82310902412 keysExamined:109 docsExamined:101 numYields:5 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 12 } }, MMAPV1Journal: { acquireCount: { r: 6 } }, Database: { acquireCount: { r: 6 } }, Collection: { acquireCount: { R: 6 } } } protocol:op_query 107ms
2018-04-25T11:02:33.788+0000 I COMMAND [conn98] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:81823088573 keysExamined:109 docsExamined:101 numYields:5 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 12 } }, MMAPV1Journal: { acquireCount: { r: 6 } }, Database: { acquireCount: { r: 6 } }, Collection: { acquireCount: { R: 6 } } } protocol:op_query 108ms
2018-04-25T11:02:43.791+0000 I COMMAND [conn94] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:84344130917 keysExamined:109 docsExamined:101 numYields:7 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 112ms
2018-04-25T11:04:33.821+0000 I COMMAND [conn98] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85552175444 keysExamined:109 docsExamined:101 numYields:8 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 127ms
2018-04-25T12:40:14.616+0000 I COMMAND [conn98] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:83783641075 keysExamined:109 docsExamined:101 numYields:6 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 14 } }, MMAPV1Journal: { acquireCount: { r: 7 } }, Database: { acquireCount: { r: 7 } }, Collection: { acquireCount: { R: 7 } } } protocol:op_query 106ms
2018-04-25T12:40:28.907+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user3_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:83691420199 keysExamined:101 docsExamined:101 numYields:8 nreturned:101 reslen:13408742 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 151ms
2018-04-25T12:40:28.932+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { private: { $ne: true } } } planSummary: IXSCAN { private: 1 } cursorid:85014875379 keysExamined:101 docsExamined:101 numYields:9 nreturned:101 reslen:13656126 locks:{ Global: { acquireCount: { r: 20 } }, MMAPV1Journal: { acquireCount: { r: 10 } }, Database: { acquireCount: { r: 10 } }, Collection: { acquireCount: { R: 10 } } } protocol:op_query 199ms
2018-04-25T12:40:34.618+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:81942241093 keysExamined:109 docsExamined:101 numYields:7 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 106ms
2018-04-25T12:44:24.658+0000 I COMMAND [conn94] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:82494645813 keysExamined:109 docsExamined:101 numYields:8 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 113ms
2018-04-25T12:46:08.743+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user2_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:83393262122 keysExamined:101 docsExamined:101 numYields:7 nreturned:101 reslen:13271844 locks:{ Global: { acquireCount: { r: 16 } }, MMAPV1Journal: { acquireCount: { r: 8 } }, Database: { acquireCount: { r: 8 } }, Collection: { acquireCount: { R: 8 } } } protocol:op_query 106ms
2018-04-25T12:46:14.668+0000 I COMMAND [conn96] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:83287023997 keysExamined:109 docsExamined:101 numYields:6 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 14 } }, MMAPV1Journal: { acquireCount: { r: 7 } }, Database: { acquireCount: { r: 7 } }, Collection: { acquireCount: { R: 7 } } } protocol:op_query 117ms
2018-04-25T12:46:55.673+0000 I COMMAND [conn94] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user3_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85500377486 keysExamined:101 docsExamined:101 numYields:4 nreturned:101 reslen:13408742 locks:{ Global: { acquireCount: { r: 10 } }, MMAPV1Journal: { acquireCount: { r: 5 } }, Database: { acquireCount: { r: 5 } }, Collection: { acquireCount: { R: 5 } } } protocol:op_query 144ms
2018-04-25T12:46:58.776+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user2_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:81656430938 keysExamined:101 docsExamined:101 numYields:8 nreturned:101 reslen:13271844 locks:{ Global: { acquireCount: { r: 18 } }, MMAPV1Journal: { acquireCount: { r: 9 } }, Database: { acquireCount: { r: 9 } }, Collection: { acquireCount: { R: 9 } } } protocol:op_query 135ms
2018-04-25T12:46:59.117+0000 I COMMAND [conn98] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user3_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85243285750 keysExamined:101 docsExamined:101 numYields:9 nreturned:101 reslen:13408742 locks:{ Global: { acquireCount: { r: 20 } }, MMAPV1Journal: { acquireCount: { r: 10 } }, Database: { acquireCount: { r: 10 } }, Collection: { acquireCount: { R: 10 } } } protocol:op_query 170ms
2018-04-25T12:47:04.677+0000 I COMMAND [conn94] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85651420717 keysExamined:109 docsExamined:101 numYields:5 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 12 } }, MMAPV1Journal: { acquireCount: { r: 6 } }, Database: { acquireCount: { r: 6 } }, Collection: { acquireCount: { R: 6 } } } protocol:op_query 112ms
2018-04-25T12:47:08.745+0000 I COMMAND [conn95] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user2_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:84542545523 keysExamined:101 docsExamined:101 numYields:5 nreturned:101 reslen:13271844 locks:{ Global: { acquireCount: { r: 12 } }, MMAPV1Journal: { acquireCount: { r: 6 } }, Database: { acquireCount: { r: 6 } }, Collection: { acquireCount: { R: 6 } } } protocol:op_query 104ms
2018-04-25T13:36:39.739+0000 I COMMAND [conn96] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user3_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:83367894125 keysExamined:101 docsExamined:101 numYields:10 nreturned:101 reslen:13408742 locks:{ Global: { acquireCount: { r: 22 } }, MMAPV1Journal: { acquireCount: { r: 11 } }, Database: { acquireCount: { r: 11 } }, Collection: { acquireCount: { R: 11 } } } protocol:op_query 160ms
2018-04-25T13:36:40.552+0000 I COMMAND [conn97] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: null } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85829377385 keysExamined:101 docsExamined:101 numYields:5 nreturned:101 reslen:13656126 locks:{ Global: { acquireCount: { r: 12 } }, MMAPV1Journal: { acquireCount: { r: 6 } }, Database: { acquireCount: { r: 6 } }, Collection: { acquireCount: { R: 6 } } } protocol:op_query 106ms
2018-04-25T13:36:44.958+0000 I COMMAND [conn96] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user1_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85645824554 keysExamined:109 docsExamined:101 numYields:5 nreturned:101 reslen:15163185 locks:{ Global: { acquireCount: { r: 12 } }, MMAPV1Journal: { acquireCount: { r: 6 } }, Database: { acquireCount: { r: 6 } }, Collection: { acquireCount: { R: 6 } } } protocol:op_query 103ms
2018-04-25T13:37:40.646+0000 I COMMAND [conn96] command mydb.mycollection command: find { find: "mycollection", filter: { $or: [ { private: { $ne: true } }, { created_by: "user3_id" } ] } } planSummary: IXSCAN { created_by: 1 }, IXSCAN { private: 1 } cursorid:85301123581 keysExamined:101 docsExamined:101 numYields:6 nreturned:101 reslen:13408742 locks:{ Global: { acquireCount: { r: 14 } }, MMAPV1Journal: { acquireCount: { r: 7 } }, Database: { acquireCount: { r: 7 } }, Collection: { acquireCount: { R: 7 } } } protocol:op_query 105ms
Вот часть схемы и кода, которые устанавливают коллекцию и индексы.В реальном коде есть больше полей в коллекции, но они не используются в запросах.
var Schema = new SimpleSchema({
'created_at': {
'type': Number,
'label': 'Created at',
},
'created_by': {
'type': String,
'label': 'Created by',
},
'private': {
'type': Boolean,
'label': 'Private',
'optional': true,
},
});
MyCollection = new Meteor.Collection('mycollection');
if (Meteor.isServer) {
MyCollection.rawCollection().createIndex( {'created_by': 1} );
MyCollection.rawCollection().createIndex( {'private': 1} );
MyCollection.rawCollection().createIndex( {'created_at': -1} );
}
MyCollection.attachSchema(Schema);