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19990409: core file

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  • Subject: 19990409: core file
  • Date: Fri, 09 Apr 1999 08:38:47 -0600
>From: Anthony Rockwood - MSCD Meteorology <address@hidden>
>Organization: Metro State
>Keywords: 199904091410.IAA13925 LDM queue problem core

Tony-

>Ok, it happened again last night. A big core file was created in
>ldm/home/wxuser:
>
>-rw-r--r--   1 wxuser   staff    48391528 Apr  9 07:39 core.
>
>The command, 'file core' returned the following:
>
>core:           ELF 32-bit LSB core file 80386 Version 1, from 'garp' 

Since this core file is from GARP, it does not indicate a problem with
the LDM.  However, if there was a huge core file, it could fill up
your disk and then create some queue problems.  By the time I looked, 
mcscour.sh had run, so you had plenty of disk space.  The LDM looks like 
it is still running fine.  Apparently, someone was running GARP this 
morning and it crashed at 7:39 am.  You can go ahead and delete the 
core file.

>The ldm is still running, but it may not for long. I won't delete the file
>in case you want to look at it.  If you're bogged down with the office
>shuffle and can't look at this before the ldm quits,  I'll just keep it
>going as long as I can, but eventually I'll have to reboot.

If you are worried about disk space, you could create a link in wxuser's
home directory between core and /dev/null:

ln -s /dev/null core

so if GARP does crash, the output will go to the great bit bucket
in the sky instead of writing to disk.

The other option is to add:

limit coredumpsize 0m

to wxuser's .cshrc which limits the core size to 0 Mb.  

Either method will keep the core file from using up disk space.  You
might want to do the same for the user gempak.

Can't get those new machines in here fast enough, eh? ;-)

Don