Message boards : Number crunching : computation errors
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H. Miersch

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Message 39999 - Posted: 22 Sep 2019, 15:34:35 UTC

i get a lot of computation errors, and ALL of them are theory native and atlas simulation tasks. not a single one has completed successfully. why is that? and yes, the theory native and atlas simulation are the ONLY tasks that fail, everything else is no problem. what's going on?

in case it matters, i use BOINC 7.14.2 on ubuntu 19.04
I BOINC, therefore I am.
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Jim1348

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Message 40000 - Posted: 22 Sep 2019, 16:48:57 UTC - in response to Message 39999.  

You won't get much help until you show your computers. There are experts here (probably not me) who can then diagnose it.
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Gunde

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Message 40001 - Posted: 22 Sep 2019, 17:33:29 UTC

I have not manage to build in 19.04 as some libs been deprecated. Cern would need to make it to support 19.04. This could have changed but not sure on that.

If all task failed i would check check setup.
cvmfs_config chksetup


Then also probe.
cvmfs_config probe


Does it say OK?
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Luigi R.
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Message 40002 - Posted: 22 Sep 2019, 20:33:20 UTC - in response to Message 40001.  
Last modified: 22 Sep 2019, 20:34:29 UTC

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Profile MAGIC Quantum Mechanic
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Message 40003 - Posted: 23 Sep 2019, 0:13:51 UTC - in response to Message 40002.  

CVMFS not found, aborting the job.
https://lhcathome.cern.ch/lhcathome/result.php?resultid=246654334



running start_atlas return value is 1
tar cvf shared/result.tar.gz
tar: Cowardly refusing to create an empty archive
Try 'tar --help' or 'tar --usage' for more information.

(ok that was pretty funny)
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H. Miersch

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Message 40010 - Posted: 23 Sep 2019, 18:53:45 UTC - in response to Message 40001.  


If all task failed i would check check setup.
cvmfs_config chksetup

yes, this one says OK

Then also probe.
cvmfs_config probe


Does it say OK?

this one does not give me any output. is that normal?
I BOINC, therefore I am.
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computezrmle
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Message 40011 - Posted: 23 Sep 2019, 19:54:00 UTC - in response to Message 40010.  

Then also probe.
cvmfs_config probe


Does it say OK?

this one does not give me any output. is that normal?

1st step would be to get a working CVMFS.

Common misconfigurations are:
- incomplete CVMFS settings
- autofs service not configured

See:
https://cvmfs.readthedocs.io/en/stable/cpt-quickstart.html



Try "cvmfs_config wipecache" followed by "cvmfs_config probe".
If autofs is configured and the 2nd command still produces an empty output then post your /etc/cvmfs/default.local.



It would also be helpful to unhide your computers at the web preferences page.
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H. Miersch

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Message 40013 - Posted: 24 Sep 2019, 7:02:40 UTC - in response to Message 40011.  
Last modified: 24 Sep 2019, 7:22:31 UTC

Try "cvmfs_config wipecache" followed by "cvmfs_config probe".
If autofs is configured and the 2nd command still produces an empty output then post your /etc/cvmfs/default.local.

i tried those 2 commands (had to log into my admin account and use sudo) and the second command still doesn't give me any output. but how do i know if this autofs is configured?

edit: something else just occurred to me. is it possible that my firewall is causing these problems? what port(s) and protocol(s) does cvmfs use?
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computezrmle
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Message 40014 - Posted: 24 Sep 2019, 7:48:14 UTC - in response to Message 40013.  

... how do i know if this autofs is configured?

Did you read the docs I linked yesterday?
It is explained there (section: Setting up the Software).
You may also check the config files mentioned there.
Try a reboot if it doesn't work after "systemctl restart autofs".

... is it possible that my firewall is causing these problems? what port(s) and protocol(s) does cvmfs use?

CVMFS communicates via HTTP (TCP 80, 8000, 8080).
Other ports are listed here:
http://lhcathome.web.cern.ch/test4theory/my-firewall-complaining-which-ports-does-project-use

In addition it might be a good idea to examine the firewall log.
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maeax

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Message 40016 - Posted: 24 Sep 2019, 11:43:46 UTC

Checking CernVM in Software (cvmfs-2.6.3-1.el6, or cvmfs-2.6.2-1.el6).
It can be useful to deinstall CernVM and after reboot installing the correct one.
Saw also CMVFS and CVMFS2 in one Linux. This can also be a reason.
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Message boards : Number crunching : computation errors


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