CPK

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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

June 2024

CPK#1369 Network shares of fileserver bushel could not be mounted login servers and cluster nodes

Due to a configuration error on the fileserver bushel, the NFS process did not run after a reboot. After correcting this error, the NFS service has been restarted.

Updated May 5, 2026

CPK#1368 DHCP broken in a part of the datacenter

After a software upgrade and reboot of the AR-114-9 modules, dhcp relay from the Picos network is broken. The cause is still not 100% clear, we will update this incident when we know more. We tried setting up dhcp servers within the picos network, but this didn’t solve the issue. We now suspect the picos switch itself, which we will try to restart in the morning of June 6th (between 7:30 and 8:30). This will affect all connections behind the picos switches. We hope the downtime will be less than 10 minutes. ...

Updated May 5, 2026

April 2024

CPK#1367 license server down

Due to a configuration error the licenseserver for several of our licenses did not start automatically. Previously the server did autostart, however the cause of the configuration change is unknown. The configuration of the license server has been fixed.

Updated May 5, 2026

CPK#1366 license server down

Due to some unexpected reaction to a config change, the licenseserver for several of our licenses was misconfigured for about 40minutes. The change was reverted, but it took long enough for users to run into license problems.

Updated May 5, 2026

CPK#1365 restore old ceph shares to new locations

Even though we closed CPK #1359, the user’s shares are not all restored. We have recovered the data from cephfs to temporary storage that is not accessible to users, it will take a bit more time to find new permanent locations for this data. The storage will not be cluster based anymore, but single server ZFS with snapshots.

Updated Oct 8, 2026

CPK#1364 Some network shares temporary unavailable

Some of our network shares were temporarily unavailable earlier due to a configuration error. The issue has been resolved and all shares should be accessible now. We want to assure you that the configuration error that occurred did not impact the integrity or security of the data stored on the file server. We apologize for any inconvenience this may have caused. In the meantime, we’re working on making information about network shares readily available on DIY for your reference.

Updated May 5, 2026

CPK#1363 Brief disruption to Matlab Licensing this morning

Some users may have experienced difficulty launching MATLAB this morning due to a temporary issue with the license server. We identified the problem and resolved it by manually restarting the server. MATLAB licensing should now be functioning normally. We apologize for any inconvenience this may have caused.

Updated May 5, 2026

CPK#1362 Sieve difference(s) current mailbox server

After migrating to a new mailbox server on Sunday, March 31, we noticed different behaviour in the processing of mailbox filters (by the Sieve software). Firstly, the ‘include’ of global spam+virus filtering rules had a side-effect which has been fixed using a newer version of the software. Secondly, the default behaviour of the ‘fileinto’ statement underwent a change: previously, it featured an implicit ‘stop’ statement, but now it requires an explicit ‘stop’ statement after the ‘fileinto’ to achieve the same effect. ...

Updated May 5, 2026

CPK#1361 homeserver home1 nfs problem

home1 had a problem with the nfs server after the reboot. Another reboot fixed it.

Updated May 5, 2026

March 2024

CPK#1360 mailserver will be replaced Easter weekend

In Easter Weekend (March 30th 2024) the new mailserver will replace the old one. The final switch will take a short while, during which mail clients (eg Thunderbird, mail on your phone, etc.) will not be able to connect to the science mailserver. (This is a week later than announced, due to some issues that need to be resolved before final migration) Central mail services (Microsoft @ru.nl) are independent of our mailserver and thus will not be affected at all.

Updated May 5, 2026