Bug 229524

Summary:	First checkmail takes several minutes with huge disk activity since I activated akonadi
Product:	[Applications] kmail	Reporter:	subscryer
Component:	general	Assignee:	kdepim bugs <kdepim-bugs>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	tiposchi
Priority:	NOR
Version:	unspecified
Target Milestone:	---
Platform:	Gentoo Packages
OS:	Linux
Latest Commit:		Version Fixed In:

Description subscryer 2010-03-05 11:50:12 UTC

Version:            (using KDE 4.4.1)
Compiler:          gcc443 
OS:                Linux
Installed from:    Gentoo Packages

For the whole time kmail uses a substantial amount of cpu (up to 30% on a 
Pentium(R) Dual-Core CPU T4300 @ 2.10GHz).
I used iotop to determine which process is responsible for the huge amount of disk i/o and it says that the kmail process is reading 10-30MB/s for the whole ~15 minutes it needs to complete the checkmail (3 dimap, 4 pop3).
The kmail interface is terribly sluggish for the whole time, the rest of the system however behaves as usual as long as I don't need substantial access to the disk.

The check used to take at most one minute but when kmail refused to start without akonadi and I configured it properly, I found myself in this trouble. All checks following the first one are flawless.

The size of my folders is ~15GB total.

Comment 1 subscryer 2010-03-08 10:09:19 UTC

Downgrading to mysql 5.0 solved the problem.

Comment 2 Salvo "LtWorf" Tomaselli 2010-05-03 02:58:27 UTC

That is no solution. This bug should be open.

Comment 3 subscryer 2010-05-03 09:54:49 UTC

Seems it's properly solved at least for some distros?
http://blog.tampakrap.gr/akonadi-now-works-with-mysql-5-1/