How do I redirect core dumps?

felbvts · 06-26-2009, 09:41 AM

Hello,

I am running a RHEL 5.3 server with a gig of free space in root.
I would like to redirect core dumps to another filesystem on my server. I have searched and cannot find a solution that works. ( i have seen that I should alter /proc/sys/kernel - I am not able to write to the file.) Any suggests are welcome.

Thanks in advance.
Jennifer

colucix · 06-26-2009, 09:57 AM

You have to be root to do that. Just specify the path in this way:

Code:

echo "/path/to/some/dir/core" > /proc/sys/kernel/core_pattern

To keep this behavior after a reboot you have to add the following lines to /etc/sysctl.conf:

Code:

# Setup a directory to save core files into
kernel.core_pattern = /path/to/some/dir/core

The first line is not really necessary, just a comment to keep track of the modification.

chrism01 · 06-29-2009, 01:40 AM

Actually, you use the netdump tools as provided by RH : http://kbase.redhat.com/faq/docs/DOC-6913

felbvts · 06-29-2009, 08:31 AM

Thank you! colucix and chrism01

I will give it a try.....

Although I'm not sure netdump is appropriate in this case. The app team is generating the core dumps to debug a problem. I thought netdump was primarily for the OS - I am I wrong?

chrism01 · 06-29-2009, 11:17 PM

Yeah, that's true; its primarily for the kernel. Might also be usable for others, not sure.