[emanicslab] EmanicsLab - Status Update

[David Hausheer]

Hi Rick,

I am still working on the CPU issue. I expect to be able to solve it 
this week.

Best regards
David

On 22.04.2014 14:00, Rick Hofstede wrote:
> Hi David,
>
> Do you have any news on the CPU utilization problem of
> emanicslab1.ewi.utwente.nl <http://emanicslab1.ewi.utwente.nl>? As of
> today (or the end of last week) we also have problems with
> emanicslab2.ewi.utwente.nl <http://emanicslab2.ewi.utwente.nl>; people
> effectively cannot login anymore. One of the users receives the
> following error message:
>
> Last login: Thu Apr 17 09:15:58 2014 from wlan021251.mobiel.utwente.nl
> <http://wlan021251.mobiel.utwente.nl>
> WARNING - setns(/proc/627/ns/uts)=>-2 (ignored)
> WARNING - setns(/proc/627/ns/ipc)=>-2 (ignored)
> WARNING - setns(/proc/627/ns/net)=>-2 (ignored)
> WARNING - setns(/proc/627/ns/mnt)=>-2 (ignored)
> Traceback (most recent call last):
>    File "/usr/sbin/lxcsu-internal", line 273, in <module>
>      main()
>    File "/usr/sbin/lxcsu-internal", line 220, in main
>      if (not umount(fs_path,'-l')):
>    File "/usr/sbin/lxcsu-internal", line 42, in umount
>      output = os.popen('/bin/umount %s %s 2>&1'%(opts, fs_dir)).read()
> OSError: [Errno 12] Cannot allocate memory
> Connection to emanicslab2.ewi.utwente.nl
> <http://emanicslab2.ewi.utwente.nl> closed.
>
> Best regards,
>
> --
> Rick
>
> On 09 Apr 2014, at 13:26, David Hausheer <hausheer at ps.tu-darmstadt.de
> <mailto:hausheer at ps.tu-darmstadt.de>> wrote:
>
>> Dear Andri,
>>
>> Thanks for the note. I am aware of the CPU utilization problem, which
>> seems to originate from systemd. I am looking into that and I hope to
>> be able to solve it as soon as possible.
>>
>> Best regards
>> David
>>
>> On 09.04.2014 09:42, Andri Lareida wrote:
>>> Dear David,
>>>
>>> There seems to be a problem with the first node in Twente:
>>> emanicslab1.ewi.utwente.nl <http://emanicslab1.ewi.utwente.nl>
>>> After the upgrade I was not able to copy files with SCP to the node, I
>>> was able to log in though. Guilherme re-created my slice and now I can
>>> not log in anymore. Guilherme also reported that there is a very high
>>> CPU load on the machine and he can see processes from all users.
>>> Something seems to be wrong with the set up.
>>> Thanks for investigating.
>>>
>>> Cheers
>>> Andri
>>>
>>> On 04/08/2014 01:50 AM, David Hausheer wrote:
>>>> Dear all,
>>>>
>>>> here is another status update of migration of EmanicsLab nodes:
>>>>
>>>> UZH - both nodes running and up-to-date
>>>> TUD - both nodes running and up-to-date
>>>> PSNC - both nodes running and up-to-date
>>>> UCL - both nodes running and up-to-date
>>>> IBBT - both nodes running and up-to-date
>>>> INRIA - both nodes running and up-to-date
>>>> UPC - both nodes running and up-to-date
>>>> UniGE - both nodes running and up-to-date
>>>> UT - both nodes running and up-to-date
>>>> JUB - both nodes running and up-to-date
>>>> UniBW - both nodes running and up-to-date
>>>>
>>>> We still need to install Ganglia on the nodes.
>>>>
>>>> Also, we are currently facing a problem with CPU utilization (some of
>>>> the nodes run at 100% CPU). We hope to be able to fix it soon.
>>>>
>>>> Best regards
>>>> David
>>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> emanicslab mailing list
>>> emanicslab at lists.ifi.uzh.ch
>>> https://lists.ifi.uzh.ch/listinfo/emanicslab
>>>
>>
>> --
>> Prof. Dr. David Hausheer
>>
>> Technische Universitaet Darmstadt
>> Dept. of Electrical Engineering & Information Technology
>>
>> Rundeturmstr. 10, Building S3/20, Room 225
>> 64283 Darmstadt, Germany
>> Phone: +49 6151 16 4280
>> Fax: +49 6151 16 6152
>> E-Mail: hausheer at ps.tu-darmstadt.de <mailto:hausheer at ps.tu-darmstadt.de>
>> Web: http://www.ps.tu-darmstadt.de/
>> _______________________________________________
>> emanicslab mailing list
>> emanicslab at lists.ifi.uzh.ch <mailto:emanicslab at lists.ifi.uzh.ch>
>> https://lists.ifi.uzh.ch/listinfo/emanicslab
>

-- 
Prof. Dr. David Hausheer

Technische Universitaet Darmstadt
Dept. of Electrical Engineering & Information Technology

Rundeturmstr. 10, Building S3/20, Room 225
64283 Darmstadt, Germany
Phone: +49 6151 16 4280
Fax: +49 6151 16 6152
E-Mail: hausheer at ps.tu-darmstadt.de
Web: http://www.ps.tu-darmstadt.de/