[Akonadi] [Bug 312813] New: akonadi_nepomuk_feeder sucks memory (~!.5 GB reserved memory at this time)

[Hans-Peter Jansen]

https://bugs.kde.org/show_bug.cgi?id=312813

            Bug ID: 312813
           Summary: akonadi_nepomuk_feeder sucks memory (~!.5 GB reserved
                    memory at this time)
    Classification: Unclassified
           Product: Akonadi
           Version: 4.9
          Hardware: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: Nepomuk Feeder Agents
          Assignee: kdepim-bugs at kde.org
          Reporter: hpj at urpla.net
                CC: vkrause at kde.org

I have a total of 4 imap huge accounts (take that literal), which I try to
manage with the kde pim suite (now at K:R:49 = 4.9.5 from OBS, running on
openSUSE 12.2/x86_64).

Thanks god, my primary system is well equipped with a fast CPU and 8 GB RAM, as
well as are the mail server.

Unfortunately, I have to restart akonadi every two days at least, because:

hp        9112  5.8  0.5 2470692 41104 ?       Sl   Jan04 260:52 akonadiserver
hp        9126  3.5  2.8 766564 230144 ?       Sl   Jan04 155:56
/usr/bin/akonadi_imap_resource 
hp        9127  0.3  0.6 625376 49176 ?        Sl   Jan04  14:10
/usr/bin/akonadi_imap_resource 
hp        9128  0.0  0.1 554872 11324 ?        Sl   Jan04   0:35
/usr/bin/akonadi_imap_resource 
hp        9129  0.0  0.1 555712 13284 ?        Sl   Jan04   0:46
/usr/bin/akonadi_imap_resource 
hp        9134  0.0  0.1 507080 11804 ?        S    Jan04   0:20
/usr/bin/akonadi_mailfilter_agent 
hp        9135  1.5 19.5 1895240 1596364 ?     S    Jan04  68:35
/usr/bin/akonadi_nepomuk_feeder 

>From this, you can see, that I really use one primary and one secondary imap
account, while 
the other two are kept silent (no accesses, no manual nor auto updates). I've
stopped kmail already, since that wasn't responding anymore.

The semantic desktop is on, file indexer and email indexer are switched off.

Looking at the numbers, the 1.5 GB from akonadi_nepomuk_feeder disturbs me
most. I've no idea what the code is doing or trying to archive, but feeding
nepomuk must be possible with much less resource consumption or something is
conceptually wrong.

Reproducible: Always

Steps to Reproduce:
1. run kmail with huge imap mailboxes for a while
2. check memory consumption
3.



I can provide more detailed information, if necessary as I control the cyrus
imap server as well.

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