Cpk | C&CZ News

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For RU wide service interruption see meldingen.ru.nl.

Service Interruptions

1407: NFS problems under investigation

When we moved the gateways of our networks from the old location to the new firewalls, we have received some complaints about NFS filesystems having slowness, longer delays or unavailability. In general NFS should never be a requirement for a clusternode job if you can avoid it, because this I/O is always much slower than local I/O from /scratch. We are investigating how we can optimise the network to resolve this issue, but we are hard pressed to know the exact cause of the problem....

Resolved Reports

1410: gitlab registry unavailable

The GitLab registry used by gitlab.science.ru.nl and gitlab.pep.cs.ru.nl is currently unavailable due to a disk failure in the storage backend. The faulty drive is being replaced, after which the registry should be available again.

1409: Miii server issues

Due to some cleanup changes, the miii server ended up without the proper firewall rules and account configuration scripts that it was supposed to get. We were able to fix the server eventually, but during the day, users were unable to work until it was fixed.

1408: Network reconfiguration vmhosts

With the changes in the networks, we are able to optimise some vlan configurations to utilise the high speed link, which was impossible before. The network reconfiguration may need a reboot of the server, but otherwise not too much downtime is expected. The reboot takes about 5-10 minutes if necessary. The list of vm’s affected (only those without redundant functionality are listed): vmhost05: mestrenova143 pagespep pep1 nolaivalkhof mestrenova150 fsecure pep2 pages licensevm1 goudsmit zaaivm stormvogel nolaigoffert desdapi vmhost06:...

1405: ssh session hanging due to firewall config

A change in the firewall config had the uncalculated effect that ssh-sessions got blocked/dropped. The config has been reversed.

1406: Server "oliver" needs to be moved

We need to move a server to another location, during the move some of the services are unavailable, including licenses for: Cadence Labview Originlab Cst Maple Server ExelisIdl Mathematica Synopsys Genesys Matlab VirtualMachine GurobiTokenServer Mentorgraphics Xilinx Hdlworks Moe IntelCompiler New Everything should be completed by 10:00.

1404: printing via lp science blocked

Due to the gateway change the printing traffic followed a different route which ran into default blockages in the central firewall, after the problem was found a fix was implemented to allow this traffic to the printserver via the new route.

1403: websites and other services unavailable from everywhere they were supposed to be

After switching the gateway for one of our busiest vlans to our own firewalls, a lot of websites were only available from outside that vlan, it took a while to understand the issue and find a fix for it. We now have a temporary fix in place that should make the websites work again.

1402: filemaker pro unavailable

Due to an unfortunate manual command, the package for filemaker was removed from the server. Service was restored after the weekend, when the backup was restored.

1401: DHZ en daarmee MFA onbereikbaar

Due to an unfortunate manual command, the package for DHZ was removed from the servers, causing all attempts to login with MFA to fail on for example roundcube and lilo ssh login. Service was restored about half an hour later when the DHZ package was installed again.