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Old 06-30-2005, 12:31 PM   #1
gorets
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Tracking the source of a killed job


Dear forum,

I am running calculations on a linux (redhat 8) cluster. We submit our jobs to an NQS type queuing system. I suspect that someone possibly w/ root permissions is killing my jobs. Is there any way I can track this possibly nefarious activity?

thanks,
gorets
 
Old 06-30-2005, 02:13 PM   #2
Matir
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Not without kernel patches. Killing is done through inter-process signaling, which is handled by the kernel. Process A tells the kernel "send a SIGHUP to 1234." The kernel then tells process 1234 "Hi, I have a SIGHUP for a process 1234."
 
Old 06-30-2005, 09:07 PM   #3
jcliburn
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Re: Tracking the source of a killed job

Quote:
Originally posted by gorets
Dear forum,

I am running calculations on a linux (redhat 8) cluster. We submit our jobs to an NQS type queuing system. I suspect that someone possibly w/ root permissions is killing my jobs. Is there any way I can track this possibly nefarious activity?

thanks,
gorets
The queuing system almost certainly produces logs. You can grep the logfile for your job id. Alternatively, many queuing systems provide a job history command, which might provide some details.
 
Old 06-30-2005, 09:09 PM   #4
Matir
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Oops... I didn't think about the clustering software. :-P
 
  


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