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List:       kde-pim
Subject:    Re: [Kde-pim] nepomuk / virtuoso and huge number of file descriptors
From:       Thomas McGuire <mcguire () kde ! org>
Date:       2010-02-09 10:11:50
Message-ID: 201002091112.05938.mcguire () kde ! org
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Hi,

On Wednesday 03 February 2010 22:56:34 Martin Koller wrote:
> running 4.4 RC3 (openSuse 11.2) I found that there seems to be a massive
> problem with nepomukstorage and virtuoso using (leaking?) a huge number of
> file descriptor. I'm logged in since 2 days or so and now I have the
> following:
> /usr/bin/nepomukservicestub nepomukstorage using 1023 open file descriptors
> /usr/bin/virtuoso-t using 992 open file descriptors
> 
> Also akonadiserver uses now 553 open file descriptors.
> and /bin/dbus-daemon also uses 577.
> 
> I've seen that once dbus-daemon reaches the 1024 limit, you can do nothing
> anymore with the whole desktop.
> 
> I don't know if all 4 are linked somehow.
> My current setup is: kmail, korganizer, kaddressbook all are running as
> standalone apps more or less the whole time.
> Stopping akonadi (akonadictl stop) brings the dbus-daemons fd usage down to
> just a few. After I now stopped korganizer and kaddressbook, restarted
> akonadi, the dbus-daemon uses just 79 open file descriptors.
> This does not change anything in the problem with nepomuk and virtuoso.
> Note that I have not enabled strigi file indexing.
> 
> As I see this a major problem, in my eyes a 4.4 blocker,
> what additional information can I provide to help solve this ?

Regarding the DBus connections that were open: That was a leak in the Akonadi 
server, caused by the search command that did not properly close the 
connection. This caused one DBus leak each time when switching messages in 
KMail.

David has now fixed this in r1087524.

Regards,
Thomas

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