CPK

Service interruptions

A CPK is C&CZ’s way of reporting a problem or service interruption. Follow the mailing list or RSS feed, and check the service interruptions page for live status updates.

A CPK is how C&CZ reports a problem or service interruption. We publish one when something goes wrong, when we need to do planned maintenance, or when we want to let you know about something that affects the services we run.

Note

What’s a CPK? CPK is short for the Dutch C&CZ Probleem Kaart — C&CZ problem card. The name is simply how we’ve always done it, and it has stuck with us ever since.

How to follow CPK messages

CPK messages are first sent to the CPK mailing list — you can (un)subscribe there. You can also follow the service interruption messages via RSS.

When a CPK takes longer to resolve, we publish updates on the service interruptions page.

University-wide interruptions

For Radboud University-wide service interruptions, see meldingen.ru.nl.

No service interruptions.

Resolved

March 2016

CPK#1170 Server isolator lacking private class networks

For yet unknown reasons the private class network interfaces where incorrectly numbered and activated Solution: Reboot

February 2016

CPK#1168 Gitlab upgrade

Because of an upgrade of gitlab to version 8.5.1, the GitLab service will be offline for a while.

CPK#1167 Virtual servers problem

Because of automated updates, Several virtual host had become unreachable. Server vos: gitlab3, bfacdc04, smtp2, redmine2 Server wolf: smtp1, bfacdc03, est2 Rebooted vos and wolf.

CPK#1166 miii server problem

For unknown reasons, the miii mail server was unavailable. Rebooted.

CPK#1165 IMAP mail server problem

For unknown reasons, the IMAP mail server was unavailable. The service cyrus-imapd was not correctly started. Starting this service service cyrus-imapd start solved the problem.

CPK#1164 IMAP mail server problem

For unknown reasons, the IMAP mail server was unavailable. Mail services were halted after some time because of logging activity. As a temporary workaround logging is now performed using UDP instead of TCP.

CPK#1163 Fileserver problems

The Ubuntu 14.04 fileservers “flock” and “muckle” had problems a few times. After we reverted to the previous kernel version, the service seems to be stable again.

CPK#1162 Matlab license server crashed

Last night the Matlab license server crashed, because the number of open file handles reached the maximum configured, because a user started a lot of Matlab processes. Because we do not yet monitor this properly and it was not reported to us, we could only repair it this morning. We increased the number of file handles by a factor of four. We assume that this will be sufficient to wait till the reboot of next Monday, when it will again be enlarged, this time by a factor of sixteen. We will also on short notice start to monitor the Matlab license server properly.

CPK#1161 Server lilo4 Monday morning reboot slowed

The server lilo4 stalled at shutdown during the monday morning reboot. Solution: it continued its reboot after server wielewaal became available.

CPK#1160 Webserver down: tftp & egw

Quite a number of websites of ICIS were not available amongst which was eGroupWare. Furthermore, the boot process of workstations was impaired (because of the missing tftp). A reboot of the server seems to be sufficient to solve the issue. Affected websites: blackgem brainhealth croatia14 croatia15 cs eduspec eduspecorg egw ethergids fbkr kickstart mhealth oni snn