[Digikam-users] Long database sync

Johannes Kapune listen at kapune.de
Sun May 10 22:56:14 BST 2015

Hi Joram,

normally DigiKam uses SQLite, what's a database one file basis.
Each change has to be written directly to prevent data loss.
(and sometimes to read this databasefile back after each change) If you 
have to do a lot of changes it can take a lot of time.

If you start this sync you have to wait until it comes to an end.

In later use there is normally only a few changes and for this this type 
of database works well.


Am 09.05.2015 um 20:51 schrieb Noeck:
> Hi,
> I did Extras > Management
 (Extras > Wartung
 in German) in my digikam
> 4.9 installation from the ppa. And then I did a database sync from the
> files to the database.
> It takes hours (after 4h it currently reached 14%) and it shows a high
> disk write rate: 14MB/s. Why does it write so much and where? The
> database size does not change much (in those 4 hours it has grown by
> 1MB) and the image files do not seem to be touched (as expected when
> doing a sync files->database). If it just changes the database contents
> with 14MB/s, couldn't it do that in memory and then dump the result into
> the file only once?
> So where does it write to with 14MB/s?
> Thanks for clarification,
> Joram
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