Bug 312704

Summary:	mail_filter_agent eats up memory
Product:	[Frameworks and Libraries] Akonadi	Reporter:	furgl <pfurgala>
Component:	Mail Filter Agent	Assignee:	kdepim bugs <kdepim-bugs>
Status:	RESOLVED UNMAINTAINED
Severity:	grave	CC:	martin+kde, montel, pfurgala, smartins
Priority:	NOR
Version:	4.10
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description furgl 2013-01-05 20:18:08 UTC

memory consumption grows while filtering,
but doesn't decrease when finished
it only grows till stand still

Reproducible: Always

Steps to Reproduce:
1.select some hundred mails
2.press CTRL-J for filtering
3.watch mem consumption of proc mail_filter_agent


Expected Results:  
patch

Comment 1 Martin Bednar 2013-01-17 20:51:12 UTC

I've just been hit by this. Created a new filter, selected a folder and applied it on it (directly in the filter creation dialog). When it finished, akonadi_mail_filter consumed 16% of my 2GB of RAM (according to htop), which hurts. This didn't go down within five minutes, so I restarted akonadi. using KDE 4.9.98 on Chakra.

Comment 2 Laurent Montel 2013-01-18 07:52:21 UTC

so it increases each time that you filter ?
or it stays at 16% ?

Comment 3 Martin Bednar 2013-01-18 08:31:53 UTC

Reapplying the same filter : stayed at 16%
Creating and applying new filter (after running first one) : went up to 33%
Couldn't try much else, since by that time the laptop became unusable...

Comment 4 Laurent Montel 2013-01-18 08:55:24 UTC

ah each time you create a new filter and click apply it it increases ?
I didn't test. Will do

Comment 5 Sergio Martins 2013-01-18 10:36:31 UTC

Please see http://sourceware.org/bugzilla/show_bug.cgi?id=14827

and comment there

Comment 6 furgl 2013-02-08 17:56:15 UTC

@developers:

please check code in mail filter agent for logging feature(s) !!!

I noticed by a fault in my filter rules that:

the less filters kmail processes the less memory it allocates

looking for the filter logs I saw that filter logging
was enabled by default to unlimited

by disabling filter logging
I could decrease memory consumption very significantly
and increase filter speed many times

but: 

memory consumption is still increasing !!!
even not that much than before
so ther must be a memory leak .........

before, with filter logging enabled, I could process some hundred mails till memory usage of filter agent reached about 1.5GB
one core was equipped with nothing but the filteragent but nothing happened any more and I had to restart filter_agent

now with the filter logging disabled kmail could handle about 15000 mails and memory consumption raised only from 14M up to below 250M

greets,

peter
OS12.3RC1 KDE4.10

Comment 7 Denis Kurz 2016-09-24 20:37:07 UTC

This bug has only been reported for versions older than KDEPIM 4.14 (at most akonadi-1.3). Can anyone tell if this bug still present?

If noone confirms this bug for a recent version of akonadi (part of KDE Applications 15.08 or later), it gets closed in about three months.

Comment 8 Denis Kurz 2017-01-07 22:15:47 UTC

Just as announced in my last comment, I close this bug. If you encounter it again in a recent version (at least 5.0 aka 15.08), please open a new one unless it already exists. Thank you for all your input.