[Kde-pim] Phantom akonadi IMAP resources

[Shaheed Haque]

Jörg,

Can you possibly try the following? Note that this might be very
resource intensive, and so might itself destabilise the system so you
may need some time/patience to get results.

1. Shutdown kontact and anything else you can to minimise Akonadi traffic.

2. Run "akonadiconsole". On Ubuntu at least, it is actually in its own
package, so you may need to install it first.

3. On the Debugger tab, check the "enable" box.

4. Start kmail

Now, when kmail becomes unresponsive and starts consuming lots of
memory, do you see anything in the debugger window? There will be
several tabs, it may help if you can close all but the ones that elate
to imap/kmail (and "All").

Finally, don't forget to disable the debugger by unchecking the box,
otherwise your memory and performance will continue to suffer!

Thanks, Shaheed

On 26 February 2012 02:42, Jörg Schaible <joerg.schaible at gmx.de> wrote:
> Hello,
>
> today my KMail 4.7.4 messed up my box. It started when I had to realize that
> Kontact suddenly claimed most of the available memory and my machine hardly
> responded to my actions because of extensive swapping. I had to kill the
> process to get into normal state again. Starting KMail alone gave proof that
> it cause the problem.
>
> However, now I had the problem, that after launching it started always
> immediately to allocate a lot of memory within a few seconds and the machine
> got totally unresponsive.
>
> As next action I deleted the IMAP resource in akonadi_control, since I have
> all my 50000 mails on the server (actually I could delete also the local
> folder). I started KMail, the IMAP resource was gone, it behaved normally
> and I closed it again.
>
> Then I recreated the IMAP resource from scratch in akonadi_control again,
> started KMail and it seemed to work at first glance, I closed it and started
> Kontact. But it started suddenly to consume my memory again and crashed.
> Starting KMail again as standalone application showed that the problem was
> occurring again, but this time I also got a second process
> "akonadi_imap_resource" behaving the same (allocating more than 2GB of
> memory). I killed KMail and restarted akonadi.
>
> I recreated the IMAP resource again to see if the effect on KMail as
> standalone app is again gone, but this time KMail started with the memory
> waste quite immediately followed by a crash after allocating more than 4GB
> within a few seconds. Everytime.
>
> As next action I deleted the IMAP resource again, stopped akonadi and
> removed any trace of an imap resource in ~/.kde4/share/config/ and
> ~/.config/akonadi. After restarting akonadi and KMail I have now the weird
> situation that KMail shows me now the IMAP server two times in the left
> pane, but neither in KMail's settings nor in akonadi_control is any IMAP
> resource visible. KMail cannot resync any of the mail folders (according the
> error message on the console), but can access the already available mails
> like on offline mode.
>
> How can I clean this up without losing all my akonadi calendar and contact
> resources? Akonadi uses an external MySQL DB. Where does KMail get the info
> about those deleted IMAP resources and how can I get rid of them? Anybody
> else facing this memory hog?
>
> - Jörg
>
>
>
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