[Akonadi] [Bug 364114] moving a folder within one maildir resource is extremely slow and inefficient

Martin Steigerwald via KDE Bugzilla bugzilla_noreply at kde.org
Thu Jun 23 12:22:19 BST 2016


--- Comment #4 from Martin Steigerwald <Martin at Lichtvoll.de> ---
I see how it is challenging to solve this within current Akonadi design. If
using a folder ID that is just stored within the database, it won´t detect
manual moves. But well, it could write a .folderinfo file into each folder
containing a unique hash of the folder. It would then store in database folder
xyz has this internal Akonadi ID and this hash and is currently located at this

I wonder whether this changes the consequence of a database loss, but I don´t
think so, I think it can even provide a path to make filter handling much more
robust. If the filter rules stores the hash of the folder, akonadi mailfilter
agent can ask Akonadi about the internal database ID for the folder and thus as
long as the user does not remove the .folderinfo or whatever it is called file
from the folder, the filter rules would still work after a complete database
loss. (Of course that doesn´t solve this issue for IMAP accounts, but it would
be a start.)

For the individual mail items in the database Akonadi can still use an internal
ID, cause on database loss, this information is lost as well, so it will have
to reindex all the folders anyway.

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