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Archive for May 7th, 2009

Kolab on its way back

May 7th, 2009 by

After a long time, with lots of not visible activity Kolab, the groupware server build with many known open source components, is slowly getting back into openSUSE. For a year or so it was not possible to use Kolab on openSUSE versions newer than 10.3. That was due to the move from openldap 2.3 to 2.4. The latter does no longer support slurpd as replication mechanism, but uses syncrepl instead. Hence, kolab had to be extended to be able to work with new replication protocol. After that the way the webclient horde was packaged, changed from (to make a long story short) 1 big package, to many small packages. This in preparation for horde4. Today, the following message was posted to the kolab-user e-maillist:

after a lot of tests on a virtual system I finally upgraded my
productive Kolab server to 2.2.1 with the Suse packages.

Now you should now, that kolab-2.2.1 was released about month in April 2009. Although we (Marcus Huewe, Alar Sing, and the author of this article) are not there yet, seeing this message means a lot to us. We’re making good process!

Qemu network speed

May 7th, 2009 by

I’m working on a solution to automatically test drive factory installations every day and one thing that bothered me majorly was the download speed I had with kvm. I couldn’t get faster than around 300K/s, which makes a factory installation take around 5 hours. Not really practical for my purpose, and it was quite frustrating taking that the host gets almost 3MB/s out of download.opensuse.org (I get various german mirrors). So I asked around and Jan suggested the setup of Gladiac, but it didn’t want to fly for me. So I continued experimenting and went to Luwdig for some firewall advise. And his suggestion was much simpler: using pcnet. So my kvm call looks like this now:

qemu-kvm -net user,hostname=factory-pc -net nic,model=pcnet -drive ....

Now I have about the full performance – and I’m ten steps closer to automating bootchart generation of daily factory 🙂