Core Dumping?

300zxmuro · February 23, 2011, 11:48pm

How to now if the server is core dumping into the same filesystem?

fpmurphy · February 24, 2011, 12:35pm

How to now do what? Your question is unclear.

300zxmuro · February 24, 2011, 12:48pm

I have a FS that is increasing in size very slowly. A technician told me that sometimes it could be a core dump dumping data over and over in the same FS.

I would like to know if this is the case.

How can I know if there is a dump dumping in the system?

Which are the commands?

Thanks

oky · February 28, 2011, 4:53am

What version of RedHat are you using....coredump is available in RHEL starting from 5 via kdump utility

fpmurphy · February 28, 2011, 9:21am

kdump is for kernel crash dumping - not core dumps.

Assuming abrtd is not running, to find the core dump pattern do:

# sysctl -a | grep core_pattern

and then search for that.

For example

# sysctl -a | grep core_pattern
kernel.core_pattern = /tmp/core.%p

This means that the core dump files will be generated in the �/tmp� directory. The �%p� extension is used to append the process id of the application that crashed. BTW, the variable kernel.core_pattern can also used to change the name of core dump files so they are not necessarily named "core"