[digikam] [Bug 367853] Digikam hangs on 'Reading database' when stumbling across MacOS' Photos Library of a huge size (>20GB)

Lars Van Casteren via KDE Bugzilla bugzilla_noreply at kde.org
Sat Aug 27 12:50:48 BST 2016


https://bugs.kde.org/show_bug.cgi?id=367853

--- Comment #5 from Lars Van Casteren <larsvancasteren at gmail.com> ---
I think the scanning actually went ok when seeing the console msg output.
The problem seems to appear after the folder scan, or during consequent startup
if you killed it. 

This is the console after it finished scanning Photos, it seemed to actually
have finished. 

digikam.database: Complete scan took: 1339440 msecs.
digikam.general: total scan value :  569565
digikam.database: Complete scan (file scanning deferred) took: 203521 msecs.
digikam.general: Event is dispatched to OSX desktop notifier
digikam.general: Camera XML data:  "/Users/wowbagger/Library/Application
Support/digikam/cameras.xml"
digikam.facedb: FaceDB SelectFaceSetting val ret =  0
digikam.facedb: FaceDB SelectFaceSetting val ret =  0
digikam.facedb: Face database: have a structure version  "2"
digikam.facesengine: Face database ready for use
digikam.facesengine: Face database ready for use
digikam.geoiface: "setting backend marble"
digikam.general: Stacked View Mode :  0
digikam.geoiface: "setting backend marble"
digikam.general: "browse_album"
digikam.general: "browse_tag"
digikam.general: "browse_labels"
digikam.general: "browse_date"
digikam.general: "browse_timeline"
digikam.general: "browse_search"
digikam.general: "browse_fuzzysearch"
digikam.general: "browse_gpssearch"
digikam.general: "browse_people"
digikam.widgets: Paths to color scheme : 
("/opt/digikam/Applications/KF5/digikam.app/Contents/Resources//digikam/colorschemes")
digikam.widgets: ""  ::  ""
QFSFileEngine::open: No file name specified
digikam.dimg: Invalid variant value for device!
digikam.dimg: updating data
digikam.dimg: updating data
digikam.general: Using  4  CPU core to run threads
digikam.general: new search text settings:  "" : hasResult =  false , validRows
=  0
QFSFileEngine::open: No file name specified
digikam.geoiface: ----
digikam.geoiface: ----
digikam.general: Added root album called:  "Pictures"

This is a lldb bt: 

* thread #1: tid = 0xd0980, 0x00000001065714ff QtCore`QHash<QString,
QHashDummyValue>::insert(QString const&, QHashDummyValue const&) + 207, stop
reason = signal SIGSTOP
  * frame #0: 0x00000001065714ff QtCore`QHash<QString,
QHashDummyValue>::insert(QString const&, QHashDummyValue const&) + 207
    frame #1: 0x000000010656f64b
QtCore`QtPrivate::QStringList_removeDuplicates(QStringList*) + 251
    frame #2: 0x0000000100df7a7d
libdigikamcore.5.2.0.dylib`___lldb_unnamed_function10472$$libdigikamcore.5.2.0.dylib
+ 29
    frame #3: 0x0000000100df7408
libdigikamcore.5.2.0.dylib`Digikam::ModelCompleter::slotDataChanged(QModelIndex
const&, QModelIndex const&) + 1560
    frame #4: 0x0000000100ea5e3f
libdigikamcore.5.2.0.dylib`___lldb_unnamed_function12112$$libdigikamcore.5.2.0.dylib
+ 207
    frame #5: 0x00000001066c5796 QtCore`QMetaObject::activate(QObject*, int,
int, void**) + 742
    frame #6: 0x000000010675c69d
QtCore`QAbstractItemModel::dataChanged(QModelIndex const&, QModelIndex const&,
QVector<int> const&) + 61
    frame #7: 0x0000000100326621
libdigikamgui.5.2.0.dylib`Digikam::AbstractCountingAlbumModel::updateCount(Digikam::Album*)
+ 753
    frame #8: 0x00000001003266e5
libdigikamgui.5.2.0.dylib`Digikam::AbstractCountingAlbumModel::includeChildrenCount(QModelIndex
const&) + 117
    frame #9: 0x00000001003555bd
libdigikamgui.5.2.0.dylib`___lldb_unnamed_function13361$$libdigikamgui.5.2.0.dylib
+ 61
    frame #10: 0x000000010035548a
libdigikamgui.5.2.0.dylib`___lldb_unnamed_function13359$$libdigikamgui.5.2.0.dylib
+ 90
    frame #11: 0x0000000100355655
libdigikamgui.5.2.0.dylib`___lldb_unnamed_function13362$$libdigikamgui.5.2.0.dylib
+ 133
    frame #12: 0x00000001003562c3
libdigikamgui.5.2.0.dylib`___lldb_unnamed_function13381$$libdigikamgui.5.2.0.dylib
+ 51
    frame #13: 0x00000001066c5796 QtCore`QMetaObject::activate(QObject*, int,
int, void**) + 742
    frame #14: 0x000000010675c88e
QtCore`QAbstractItemModel::rowsInserted(QModelIndex const&, int, int,
QAbstractItemModel::QPrivateSignal) + 78
    frame #15: 0x000000010663b740 QtCore`QAbstractItemModel::endInsertRows() +
80
    frame #16: 0x00000001066590b6
QtCore`QSortFilterProxyModelPrivate::insert_source_items(QVector<int>&,
QVector<int>&, QVector<int> const&, QModelIndex const&, Qt::Orientation, bool)
+ 1430
    frame #17: 0x0000000106659b06
QtCore`QSortFilterProxyModelPrivate::source_items_inserted(QModelIndex const&,
int, int, Qt::Orientation) + 2070
    frame #18: 0x0000000106661d03
QtCore`QSortFilterProxyModel::qt_static_metacall(QObject*, QMetaObject::Call,
int, void**) + 1443
    frame #19: 0x00000001066c5796 QtCore`QMetaObject::activate(QObject*, int,
int, void**) + 742
    frame #20: 0x000000010675c88e
QtCore`QAbstractItemModel::rowsInserted(QModelIndex const&, int, int,
QAbstractItemModel::QPrivateSignal) + 78
    frame #21: 0x000000010663b740 QtCore`QAbstractItemModel::endInsertRows() +
80
    frame #22: 0x00000001003258ad
libdigikamgui.5.2.0.dylib`Digikam::AbstractAlbumModel::slotAlbumAdded(Digikam::Album*)
+ 93
    frame #23: 0x0000000100334cd7
libdigikamgui.5.2.0.dylib`___lldb_unnamed_function12637$$libdigikamgui.5.2.0.dylib
+ 167
    frame #24: 0x00000001066c5796 QtCore`QMetaObject::activate(QObject*, int,
int, void**) + 742
    frame #25: 0x000000010039174d
libdigikamgui.5.2.0.dylib`Digikam::AlbumManager::signalAlbumAdded(Digikam::Album*)
+ 77
    frame #26: 0x00000001003743b8
libdigikamgui.5.2.0.dylib`Digikam::AlbumManager::insertPAlbum(Digikam::PAlbum*,
Digikam::PAlbum*) + 328
    frame #27: 0x0000000100375782
libdigikamgui.5.2.0.dylib`Digikam::AlbumManager::scanPAlbums() + 4034
    frame #28: 0x0000000100374739
libdigikamgui.5.2.0.dylib`Digikam::AlbumManager::refresh() + 25
    frame #29: 0x000000010037402a
libdigikamgui.5.2.0.dylib`Digikam::AlbumManager::startScan() + 1578
    frame #30: 0x00000001000e8d71
libdigikamgui.5.2.0.dylib`Digikam::DigikamApp::DigikamApp() + 3953
    frame #31: 0x0000000100011b7f digikam`main + 7343
    frame #32: 0x00007fff9221b5ad libdyld.dylib`start + 1
    frame #33: 0x00007fff9221b5ad libdyld.dylib`start + 1

And this is the sqlite db: 

sqlite> select count (*) from images;
120444

sqlite> select count(*) from albums;
106600 

Maybe the Album parsing to create the tree make it hang/unresponsive due to the
very high amount of albums?

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