unknown warning in logs, QSqlDatabasePrivate

[Paolo Skoki]

I'm getting a warning:

Warning [LibraryScanner 1]: QSqlDatabasePrivate::removeDatabase: connection 'MIXXX-2' is still in use, all queries will cease to work.

Don't know what this is related to. I have several issues with my Mixxx 2.3.1 on Windows 10 (used to be HEAD version of Mixxx now that I try to fix it I'm using 2.3.1-30 with the same problems) and trying to exclude them one by one. More can be found here https://mixxx.discourse.group/t/updating-id3-creates-new-file-instead-of-modyfing/23814/12

I'm giving also the wider context of the warning in log:

Debug [AnalyzerThread 0 #1]: AnalyzerThread 0 - Exiting
Debug [Main]: Browser background thread terminated!
Info [Main]: MetadataSourceTagLib - No track metadata or cover art found in file "C:/Users/me/Desktop/Paolo-28.04.2017.mp3" with type 3
Warning [Main]: Track - Skip exporting of track metadata after failure to import tags from file: "C:/Users/me/Desktop/Paolo-28.04.2017.mp3"
Debug [Main]: TrackCollectionManager - Saving track "C:/Users/me/Desktop/Paolo-28.04.2017.mp3" in internal collection
Debug [Main]: TrackDAO: Saving track 6142 QFileInfo(C:\Users\me\Desktop\Paolo-28.04.2017.mp3)
Debug [Main]: TrackDAO: Updating track in database 6142 QFileInfo(C:\Users\me\Desktop\Paolo-28.04.2017.mp3)
Debug [Main]: BaseTrackCache(0x226e2c09040) updateIndexWithQuery took 0 ms
Debug [Main]: 2422 ms deleting RecordingManager
Debug [Main]: Delete RecordingManager
Debug [Main]: 2422 ms deleting BroadcastManager
Debug [Main]: DlgPrefBroadcast - broadcastEnabledChanged() 0
Debug [Main]: 2424 ms deleting EngineMaster
Debug [Main]: 2517 ms deleting DlgPreferences
Debug [Main]: 2533 ms deleting EffectsManager
Debug [Main]: 2596 ms detaching all track collections
Info [Main]: TrackCollectionManager - Stopping library scanner thread
Debug [LibraryScanner 1]: LibraryScanner - Event loop stopped
Warning [LibraryScanner 1]: QSqlDatabasePrivate::removeDatabase: connection 'MIXXX-2' is still in use, all queries will cease to work.
Debug [LibraryScanner 1]: LibraryScanner - Exiting thread
Info [Main]: TrackCollectionManager - Stopped library scanner thread
Debug [Main]: ~TrackDAO()
Info [Main]: TrackCollection - Disconnecting track source
Info [Main]: TrackCollection - Disconnecting database
Debug [Main]: TrackDAO::finish()
Debug [Main]: Clearing played information for this session
Debug [Main]: Cleaning LibraryHashes/track_locations tables.
Info [Main]: GlobalTrackCache - Destroying instance
Debug [Main]: ~TrackDAO()
Debug [Main]: 2718 ms closing database connection(s)
Debug [Main]: 2754 ms deleting SettingsManager
Debug [Main]: Mixxx shutdown complete with code 0

------
mixxx-2.3.1-30-g5b380d6cc3
Win 10 64-bit
Intel(R) Core(TM)2 Duo CPU P8400 @ 2.26GHz 2.27 GHz
Built-in integrated video- and soundcard / hardware

[Paolo Skoki (ohmydear)]

Years ago there was a similar report with no solution https://bugs.launchpad.net/mixxx/+bug/517372

[Uwe Klotz (uklotzde-deactivatedaccount)]

This warning can be ignored and is caused by unmanaged connection sharing. Cannot be fixed easily.

There are more serious issues with the library scanner: https://bugs.launchpad.net/mixxx/+bug/1051106

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/10621