100% CPU by many database process, too many connections
Chưa có ai nhận issue này.
Đánh giá
- Độ khó
- 4/5
- Thời gian dự kiến
- 3-5 ngày
- Mức phù hợp với người mới
- 20/100
Hướng nghiên cứu
Bắt đầu với các điểm đầu vào của stack trace backup trong apps/backup/lib/Service/ChunkService.php, apps/backup/lib/Service/PackService.php và apps/backup/lib/Cron/Manage.php, sau đó so sánh hành vi khi các tác vụ nền được bật. Tái hiện các triệu chứng CPU cao và “Too many connections” trong khi kiểm tra đường dẫn SQLDump và các log liên quan; công việc chỉ hoàn tất khi xác định được một lỗi backup cụ thể và xác minh được bản sửa lỗi.
Do mô hình lập chỉ mục viết ra từ nội dung của issue.
Mô tả
Hello, I have 100% CPU used by many DB process when I enable NC Backup background jobs.

When I disable these background jobs in the app config panel and reboot, the pb is solved.
I use NC 25.0.5. , backup app v1.2.0 on debian / apache / mariaDB on Intel Nuc hardware.
It still works, but a bit slower than usual, and desktop sync fails.
According to logs, I wonder if there is something wrong with the SQLDump ?
Is there a way to raise the app log level ? any idea to troubleshoot deeper ?
ERROR 1:
[no app in context] Erreur: OCP\Files\NotFoundException: /Local/backupapp/20230322225619-differential-rIoiVQ95QBexwKR/sqldump/sqldump-9f050013-9ca3-46ae-baf4-7bcd1c78c4e9/sqldump-9f050013-9ca3-46ae-baf4-7bcd1c78c4e9.zip has no owner at <<closure>>
0. /var/www/nextcloud/lib/private/Files/Filesystem.php line 805
OC\Files\View->getOwner()
1. /var/www/nextcloud/apps/files_versions/lib/Storage.php line 112
OC\Files\Filesystem::getOwner()
2. /var/www/nextcloud/apps/files_versions/lib/Storage.php line 247
OCA\Files_Versions\Storage::getUidAndFilename()
3. /var/www/nextcloud/apps/files_versions/lib/Hooks.php line 82
OCA\Files_Versions\Storage::markDeletedFile()
4. /var/www/nextcloud/lib/private/legacy/OC_Hook.php line 106
OCA\Files_Versions\Hooks::pre_remove_hook()
5. /var/www/nextcloud/lib/private/Files/View.php line 1294
OC_Hook::emit()
6. /var/www/nextcloud/lib/private/Files/View.php line 1164
OC\Files\View->runHooks()
7. /var/www/nextcloud/lib/private/Files/View.php line 727
OC\Files\View->basicOperation()
8. /var/www/nextcloud/lib/private/Files/Node/File.php line 131
OC\Files\View->unlink()
9. /var/www/nextcloud/lib/private/Files/SimpleFS/SimpleFile.php line 133
OC\Files\Node\File->delete()
10. /var/www/nextcloud/apps/backup/lib/Service/ChunkService.php line 957
OC\Files\SimpleFS\SimpleFile->delete()
11. /var/www/nextcloud/apps/backup/lib/Service/PackService.php line 200
OCA\Backup\Service\ChunkService->removeChunkFile()
12. /var/www/nextcloud/apps/backup/lib/Cron/Manage.php line 173
OCA\Backup\Service\PackService->packPoint()
13. /var/www/nextcloud/apps/backup/lib/Cron/Manage.php line 119
OCA\Backup\Cron\Manage->manage()
14. /var/www/nextcloud/lib/private/BackgroundJob/Job.php line 54
OCA\Backup\Cron\Manage->run()
15. /var/www/nextcloud/lib/private/BackgroundJob/TimedJob.php line 60
OC\BackgroundJob\Job->execute()
16. /var/www/nextcloud/cron.php line 152
OC\BackgroundJob\TimedJob->execute()
at 2023-03-23T22:11:40+00:00
ERROR 2 :
[no app in context] Erreur: Sabre\DAV\Exception\BadRequest: Taille du fichier attendue : 7420045 octets mais taille du fichier lue (depuis le client Nextcloud) et écrit (dans le stockage Nextcloud) : 3014656 octets. Cela peut être un problème de réseau au niveau du client ou un problème de stockage au niveau du serveur. at <<closure>>
0. /var/www/nextcloud/apps/dav/lib/Connector/Sabre/Directory.php line 151
OCA\DAV\Connector\Sabre\File->put()
1. /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 1098
OCA\DAV\Connector\Sabre\Directory->createFile()
2. /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php line 504
Sabre\DAV\Server->createFile()
3. /var/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php line 89
Sabre\DAV\CorePlugin->httpPut()
4. /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 472
Sabre\DAV\Server->emit()
5. /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 253
Sabre\DAV\Server->invokeMethod()
6. /var/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php line 321
Sabre\DAV\Server->start()
7. /var/www/nextcloud/apps/dav/lib/Server.php line 360
Sabre\DAV\Server->exec()
8. /var/www/nextcloud/apps/dav/appinfo/v2/remote.php line 35
OCA\DAV\Server->exec()
9. /var/www/nextcloud/remote.php line 171
require_once("/var/www/nextcl ... p")
PUT /remote.php/dav/files/ValouH/Photos%20Valentin/2023/Malaisie%202023/4%20-%20Penang%20Fev%202023/IMG_20230223_120737.jpg
from 1.32.17.81 by ValouH at 2023-03-24T08:33:28+00:00
ERROR 3:
[core] Erreur: Doctrine\DBAL\Exception: Failed to connect to the database: An exception occurred in the driver: SQLSTATE[HY000] [1040] Too many connections at <<closure>>
0. /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php line 1519
OC\DB\Connection->connect()
1. /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php line 1041
Doctrine\DBAL\Connection->getWrappedConnection()
2. /var/www/nextcloud/lib/private/DB/Connection.php line 261
Doctrine\DBAL\Connection->executeQuery()
3. /var/www/nextcloud/3rdparty/doctrine/dbal/src/Query/QueryBuilder.php line 345
OC\DB\Connection->executeQuery()
4. /var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php line 281
Doctrine\DBAL\Query\QueryBuilder->execute()
5. /var/www/nextcloud/lib/private/AppConfig.php line 418
OC\DB\QueryBuilder\QueryBuilder->execute()
6. /var/www/nextcloud/lib/private/AppConfig.php line 183
OC\AppConfig->loadConfigValues()
7. /var/www/nextcloud/lib/private/AppConfig.php line 374
OC\AppConfig->getApps()
8. /var/www/nextcloud/lib/private/legacy/OC_App.php line 967
OC\AppConfig->getValues()
9. /var/www/nextcloud/lib/private/Server.php line 725
OC_App::getAppVersions()
10. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 162
OC\Server->OC\{closure}("*** sensitive parameters replaced ***")
11. /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php line 122
OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}("*** sensitive parameters replaced ***")
12. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 129
Pimple\Container->offsetGet()
13. /var/www/nextcloud/lib/private/ServerContainer.php line 136
OC\AppFramework\Utility\SimpleContainer->query()
14. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 57
OC\ServerContainer->query()
15. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 184
OC\AppFramework\Utility\SimpleContainer->get()
16. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 162
OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}("*** sensitive parameters replaced ***")
17. /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php line 118
OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}("*** sensitive parameters replaced ***")
18. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 129
Pimple\Container->offsetGet()
19. /var/www/nextcloud/lib/private/ServerContainer.php line 136
OC\AppFramework\Utility\SimpleContainer->query()
20. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 57
OC\ServerContainer->query()
21. /var/www/nextcloud/lib/private/Server.php line 1119
OC\AppFramework\Utility\SimpleContainer->get()
22. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 162
OC\Server->OC\{closure}("*** sensitive parameters replaced ***")
23. /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php line 122
OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}("*** sensitive parameters replaced ***")
24. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 129
Pimple\Container->offsetGet()
25. /var/www/nextcloud/lib/private/ServerContainer.php line 136
OC\AppFramework\Utility\SimpleContainer->query()
26. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 57
OC\ServerContainer->query()
27. /var/www/nextcloud/lib/private/Server.php line 2070
OC\AppFramework\Utility\SimpleContainer->get()
28. /var/www/nextcloud/lib/private/Files/View.php line 117
OC\Server->getLockingProvider()
29. /var/www/nextcloud/lib/private/Server.php line 462
OC\Files\View->__construct()
30. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 162
OC\Server->OC\{closure}("*** sensitive parameters replaced ***")
31. /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php line 122
OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}("*** sensitive parameters replaced ***")
32. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 129
Pimple\Container->offsetGet()
33. /var/www/nextcloud/lib/private/ServerContainer.php line 136
OC\AppFramework\Utility\SimpleContainer->query()
34. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 57
OC\ServerContainer->query()
35. /var/www/nextcloud/lib/private/Server.php line 1472
OC\AppFramework\Utility\SimpleContainer->get()
36. /var/www/nextcloud/lib/base.php line 617
OC\Server->boot()
37. /var/www/nextcloud/lib/base.php line 1144
OC::init()
38. /var/www/nextcloud/index.php line 34
require_once("/var/www/nextcloud/lib/base.php")
GET /index.php/apps/systemtags/lastused
from 192.168.1.1 at 2023-03-25T20:01:03+00:00
ERROR 4:
[no app in context] Erreur: OCP\AppFramework\QueryException: Could not resolve trashManager! Class "trashManager" does not exist at <<closure>>
0. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 133
OC\AppFramework\Utility\SimpleContainer->resolve()
1. /var/www/nextcloud/lib/private/ServerContainer.php line 161
OC\AppFramework\Utility\SimpleContainer->query()
2. /var/www/nextcloud/lib/private/AppFramework/DependencyInjection/DIContainer.php line 440
OC\ServerContainer->query()
3. /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php line 57
OC\AppFramework\DependencyInjection\DIContainer->query()
4. /var/www/nextcloud/lib/private/AppFramework/Bootstrap/FunctionInjector.php line 57
OC\AppFramework\Utility\SimpleContainer->get()
5. <<closure>>
OC\AppFramework\Bootstrap\FunctionInjector->OC\AppFramework\Bootstrap\{closure}("*** sensitive parameters replaced ***")
6. /var/www/nextcloud/lib/private/AppFramework/Bootstrap/FunctionInjector.php line 67
array_map()
7. /var/www/nextcloud/lib/private/AppFramework/Bootstrap/BootContext.php line 51
OC\AppFramework\Bootstrap\FunctionInjector->injectFn()
8. /var/www/nextcloud/apps/files_trashbin/lib/AppInfo/Application.php line 61
OC\AppFramework\Bootstrap\BootContext->injectFn()
9. /var/www/nextcloud/lib/private/AppFramework/Bootstrap/Coordinator.php line 190
OCA\Files_Trashbin\AppInfo\Application->boot()
10. /var/www/nextcloud/lib/private/legacy/OC_App.php line 208
OC\AppFramework\Bootstrap\Coordinator->bootApp()
11. /var/www/nextcloud/lib/private/legacy/OC_App.php line 141
OC_App::loadApp()
12. /var/www/nextcloud/apps/dav/lib/AppInfo/Application.php line 205
OC_App::loadApps()
13. /var/www/nextcloud/lib/private/AppFramework/Bootstrap/Coordinator.php line 190
OCA\DAV\AppInfo\Application->boot()
14. /var/www/nextcloud/lib/private/legacy/OC_App.php line 208
OC\AppFramework\Bootstrap\Coordinator->bootApp()
15. /var/www/nextcloud/lib/private/legacy/OC_App.php line 141
OC_App::loadApp()
16. /var/www/nextcloud/lib/private/Files/SetupManager.php line 132
OC_App::loadApps()
17. /var/www/nextcloud/lib/private/Files/SetupManager.php line 340
OC\Files\SetupManager->setupBuiltinWrappers()
18. /var/www/nextcloud/lib/private/Files/SetupManager.php line 380
OC\Files\SetupManager->setupRoot()
19. /var/www/nextcloud/lib/private/Files/Mount/Manager.php line 95
OC\Files\SetupManager->setupForPath()
20. /var/www/nextcloud/lib/private/Files/View.php line 1390
OC\Files\Mount\Manager->find()
21. /var/www/nextcloud/lib/private/Files/Node/Root.php line 205
OC\Files\View->getFileInfo()
22. <<closure>>
OC\Files\Node\Root->get()
23. /var/www/nextcloud/lib/private/Files/Node/LazyFolder.php line 72
call_user_func_array()
24. /var/www/nextcloud/lib/private/Files/Node/LazyFolder.php line 149
OC\Files\Node\LazyFolder->__call()
25. /var/www/nextcloud/lib/private/Files/AppData/AppData.php line 132
OC\Files\Node\LazyFolder->get()
26. /var/www/nextcloud/lib/private/Template/JSCombiner.php line 88
OC\Files\AppData\AppData->getFolder()
27. /var/www/nextcloud/lib/private/Template/JSResourceLocator.php line 125
OC\Template\JSCombiner->process()
28. /var/www/nextcloud/lib/private/Template/JSResourceLocator.php line 77
OC\Template\JSResourceLocator->cacheAndAppendCombineJsonIfExist()
29. /var/www/nextcloud/lib/private/Template/ResourceLocator.php line 78
OC\Template\JSResourceLocator->doFind()
30. /var/www/nextcloud/lib/private/TemplateLayout.php line 379
OC\Template\ResourceLocator->find()
31. /var/www/nextcloud/lib/private/TemplateLayout.php line 211
OC\TemplateLayout::findJavascriptFiles()
32. /var/www/nextcloud/lib/private/legacy/OC_Template.php line 184
OC\TemplateLayout->__construct()
33. /var/www/nextcloud/lib/private/Template/Base.php line 132
OC_Template->fetchPage()
34. /var/www/nextcloud/lib/private/legacy/OC_Template.php line 333
OC\Template\Base->printPage()
35. /var/www/nextcloud/index.php line 74
OC_Template::printExceptionErrorPage()
GET /index.php/apps/recommendations/api/recommendations
from 192.168.1.1 at 2023-03-25T20:01:04+00:00
here is my Backup App config :

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