Slow home direcotories
Someone seems to be running something very I/O-heavy from the home directories. We are looking for these jobs and will terminate them if found, but it's less than certain that we'll find them.
We found the guilty jobs and are termintating them and have notified the user not to do that again.
Accident on Irma caused jobs to fail with status NODE_FAIL
We sadly inform you that today at 17:02:37 a human error caused the compute nodes on Irma to reboot. The jobs running was canceled and will show up with status NODE_FAIL. The accident occured while investigating an issue with the storage network. We are very sorry about this.
UPPMAX shutdown due to cooling failure -- FIXED
lupus failover issue -- FIXED
Maintenance indication in output from command jobinfo
UPPMAX made a small change in "jobinfo" output.
In the REASON column for waiting jobs, "(Maintenance)" is shown for jobs that can not start before the next maintenance reservation.
Please note that maintenance reservations many times are moved forward to next month before the actual maintenance window.
Many Irma compute nodes lost electric power -- FIXED
Three racks of Irma's compute nodes lost power,because an automatic fuse shut down.
Some jobs were lost due to this. We are very sorry about that. Please rerun those jobs that were affected.
It looks like nodes i[167-250] were affected.
So what was the reason? It looks like an ethernet switch diied, possibly short circuited, so the automatic fuse shut down, getting more switches and the compute nodes to go down.
We have error reported to our support vendor. Until the bad ethernet switch has been repaired or replaced, Irma runs with a fewer number of compute nodes.
Update at 0950 hours
Now only nodes i[179-226] are down.
Maintenance window Wednesday 2017-09-06" -- FINISHED
milou2 rebooted August 28
milou2 rebooted Monday 2017-08-28 at 19:51.
Replacing (nearly) all disks on Irma's compute nodes -- DONE
We're restarting irma-q for technical reasons. The slurm queue system may be unavailable for submitting/verifying job status for a few minutes.
milou2 rebooted August 19
milou2 rebooted on Saturday 2017-08-19.
Bianca's storage system Castor had a hiccup yesterday Thursday -- FIXED
Maintenance window Wednesday 2017-08-02 -- FINISHED
Unexpected reboot of Pica at Monday morning.
Restart of two Milou login servers today Thursday
Lower service level during UPPMAX holidays
Part of storage system Pica is still very slow
Pica was partly restarted just now, please look for problems in your job output
UPPMAX had to restart part of storage system Pica, because it worked too slowly with nearly no read/write traffic.
The restart was done a little after 1300 hours.
For Rackham users, this meant that you might have had problems with reading and writing to your home directory.
For Milou users, this meant that you also might have had problems with reading and writing to your home directory. But for Milou users, also reading from /sw (where the modules live) and reading and writing to some project directories were affected.
Please look one extra time for problems in your job output, for jobs running at this time.
We are sorry for the inconvenience.
On Milou and Rackham, very difficult to login or otherwise use /home directories -- FIXED
UPPMAX has problem with an extremely slow access to /sw (where e.g. modules live) and home directories on Milou, and to home directories on Rackham.
Because of that, it is very difficult to login to Milou and Rackham.
We will investigate the source of this problem, and will report any success as updates here.
Update at 1310 hours
We restarted part of Pica, and that solved the problem
Hopefully your jobs will continue without problems, but please be careful and look once extra time for errors in your job output.
SUPR and C3SE website down
SUPR and C3SE websites are down at the moment. This prevents you from using SUPR at the moment. Please try again later
No maintenance planned for today's maintenance window
First (non-holiday) Wednesday of each month is UPPMAX's normal, planned maintenance window.
But today we will do no maintenance.
Next maintenance window is 2nd of August.
Restart of login server milou-f Tuesday morning -- FINISHED
File system mounts of Pica volumes was not working correctly.
This was fixed by a restart of the server. Now it works much better.
We are sorry about any inconvenience for you due to this.
Lost contact with Milou nodes m[1-48] for an hour this morning -- FIXED
From approximately 0800 hours to 0910 hours this morning, an ethernet switch in Milou lost power, making 48 nodes unavailable.
Two jobs got NODE_FAIL when trying to start, and interactive work on these nodes was denied. Otherwise, we seem to have had no problems with the temporary network loss.
Singularity is available
Urgent kernel upgrade -- FINISHED
Today we are performing an urgent kernel upgrade on Milou, Fysast1, Rackham, Irma, and Bianca. Login nodes will be restarted during the day. No running jorbs or queues are stopped. We will update on the progress here in System News during the day.
UPDATE 16:00 - Update completed.
Intelmpi performance issues
Bianca graphical login now working
Uses Thinlinc Web Access. Not X-forwardning.
Bianca's storage system Castor has problems -- FIXED
Maintenance window Wednesday 2017-06-07 -- FINISHED
Maintenance window Wednesday 2017-01-04 -- FINISHED
We start at 0900 hours.
This time we will:
- Upgrade Slurm and other system software on Milou, Fysast1 and Tintin
- Upgrade firmware on Milou and Fysast1
The firmware upgrade requires power cycling so Slurm queues are stopped. Queued jobs will start after the maintenance.
Login nodes on Fysast1, Milou, and Tintin will be rebooted once during the day (we will warn an hour ahead). Slurm commands. like sbatch and jobinfo will not be available all the time.
We will not stop Slurm queues on Tintin, Irma and Bianca. Maintenance on Irma and Lupus will be done next week, January 11th.
This page will be updated during the maintenance, to keep you informed about our progress.
We plan to finish before evening (today, Wednesday).
Update at 1120 hours
Maintenance work continues.
Slurm has already been upgraded. Login nodes will probably be restarted at 1300 hours.
Update at 14:20 hours
Login nodes are upgraded and have restarted successfully.
Firmware upgrade continues.
Update at 17:00 hours
Most nodes on Milou and Fysast1 are successfully upgraded and back in production. The remaining nodes will be released later, when their upgrades are completed.
Update on Thursday at 1020 hurs
We need to make a second change to the Slurm installation, meaning that Slurm commands will not be available all the time. Jobs will keep running.
Now, we guess that we are finished with the maintenance sometime during today's afternoon.
Update on Thursday at 1530 hours
Still working with the Slurm upgrade. Still thinking that we will finish before evening.
Update on Thursday at 1640 hours
Slurm has been upgraded on Tintin, Milou and Fysast1. Nodes are still rebooting and are planned to be back in production within 2 hours.
Firmware upgrade failed on 4 (out of 26) chassis. This has been reported to the manufacturer for further troubleshooting. As a consequence, 32 Milou nodes are out of production, until this is solved. For the remaining chassis, the firmware upgrade was successful.