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Operating Systems Linux Find out process that crashed the server Post 302393218 by z1dane on Monday 8th of February 2010 07:15:21 AM
Old 02-08-2010
Quote:
Originally Posted by zaxxon
Hm, if you have nothing set up that tracks stuff like this and there is no more details in /var/log/messages, I would set up some ps aux, maybe in combination with pmap and compare the numbers of memory usage from a fresh start to when it is about to have low memory (check with free or cat /proc/meminfo) triggered by cron every 10 minutes maybe.
Hi zaxxon!

Thanks for the prompt response.

That's a great idea. So there is no native log file or daemon that tracks this sort of information in RHEL? I wanted to find out the script/user that used up all the memory, so I can avoid situations like this in the future.

If there is no such service, I will create the cron job.

Cheers,

Dave
 

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crashdc(8)						      System Manager's Manual							crashdc(8)

NAME
crashdc - Diagnostic data collection for a running or crashed system SYNOPSIS
/usr/bin/crashdc [system-kernel] [core-image] DESCRIPTION
The crashdc utility examines the core image of the operating system to extract critical diagnostic data. This utility is a shell script that invokes several tools and commands that extract selected parameters of a running or a crashed system (for example, system configura- tion, running processes, and panic messages). The arguments to the crashdc utility are the system kernel and the core image. The default values are /vmunix and /dev/mem, respectively. If you specify no arguments, the crashdc utility examines the running system. The system usually invokes the crashdc utility during system startup. If the most recent core dump has been saved by the savecore command, both the core image and the system kernel (respectively vmcore.n and vmunix.n, where the variable n is the crash number) are saved in the crash directory (by default, /var/adm/crash). Also, the crashdc utility saves the output as the file crash-data.n (where the variable n is the crash number) in the crash directory. The crashdc utility is invoked only if crash-data.n output in the crash directory does not exist or is not from the most recent crash. FILES
Default core image Default system image Output from crashdc SEE ALSO
Commands: dbx(1), kdbx(8), savecore(8) crashdc(8)
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