Quick upgrade of Slurm 2017-11-02 -- COMPLETED
UPPMAX plan to upgrade Slurm today on Fysast1, Irma, Milou, and Rackham.
This means you may experience short stops in Slurm service during upgrade of Slurm servers, and we are sorry for those.
We will begin the Slurm upgrade on Irma.
Update at 1900 hours
Main Slurm servers are upgraded, and Slurm is upgraded on all login nodes.
We are now upgrading compute nodes, upgrading them when the current jobs have finished. This means that the queue time for jobs will be longer until tomorrow. This upgrade will run in an automaic way.
So, we are soon finished with the manual steps.
Please telll us, if something with Slurm has stopped working.
Update at 2100 hours
We will continue tomorrow morning.
The upgrade on Milou's compute nodes goes slowly, due to Pica, that is very slow at the moment.
Update Friday at 0930 hours
The upgrade has finished.
UPPMAX support low on staff Monday 20/11
The UPPMAX support will be low on staff on Monday 2017-11-20 due to conference.
How to get a high job priority on Bianca
Support ticket system temporarily down --FIXED
Our support email address firstname.lastname@example.org was down for a couple of hours, but is back in service again.
Logging in to Bianca without Rackham
Bianca users outside of SUNET will be unable to login using rackham.uppmax.uu.se. We have created a temporary workaround.
Rackham unavailable -- SOLVED: Rackham available
2017-11-17 09:35 Rackham is now back in regular service.
Login nodes are now open on Rackham, and jobs are expected to run as usual on Friday morning.
It was decided to temporarily close down the Rackham cluster last Thursday when several disks on Crex reported themselves broken. The problems now seems solved, and we're awaiting results from the last tests before Rackham is fully back in service.
UPPMAX power outage -- FIXED
UPPMAX experienced a power outage in the server hall on Tuesday.
Problems with /sw on Bianca (now fixed)
The /sw part of Bianca was lost around 07:30 this morning due to an issue with the storage system. This may have caused failed jobs. The system was fixed 08:40.
Quick upgrade of Slurm 2017-11-02 -- COMPLETED
Maintenance window Wednesday 2017-11-01 -- COMPLETED
Monthly maintenance window begins at 09:00 hours on the first Wednesday of the month. (That is today.)
Issues with /sw/data during the week end
/sw/data from pica may have been unavailable for some jobs during the week end and some jobs may have failed because of this.
UPPMAX support system is down -- SOLVED
RT, the support system UPPMAX and all the rest of SNIC is using, is down.
It is located at NSC at Linköping University and the whole university has network problems.
This will make all email to and from email@example.com delayed until the network problem is fixed. So answers to Your support tickets will be delayed.
We now have contact with our support system and emails to firstname.lastname@example.org are reaching us again.
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