How to create dump in Linux

depam · 03-23-2009, 10:59 PM

Hi,

Is there a command to create a dump file for Linux? Specifically CentOS. Like the snap -ac in AIX or the explorer in Sun.

Thanks.

sarin · 03-23-2009, 11:53 PM

Send a signal to create a core dump. First find the pid (you can use ps or pgrep for this) of the process that you are interested in and then send a signal capable of producing dump to it.

Example$ kill -3 1234

1234 should be replaced by pid of your process.
You may have to enable cores. Use "ulimit -c unlimited"

depam · 03-24-2009, 02:52 AM

Hi,

What I am asking is to dump the system state of the server. like the config, cpu utilization, active processes those stuff.

Thanks.

sarin · 03-24-2009, 04:09 AM

I don't know if such a facility exists in Linux. May be you can see the use of sysrq commands if that is what you want.

http://www.kernel.org/doc/Documentation/sysrq.txt