topic Re: Automatic renaming of core dump file in Operating System - Linux

Automatic renaming of core dump file

dscao — Thu, 29 Mar 2007 09:21:26 GMT

Is it possible on HP-UX to automatically rename the core file of an app coredump? So that successive coredumps get saved on the system, rather than that only the last one is retained.

Re: Automatic renaming of core dump file

Pete Randall — Thu, 29 Mar 2007 09:28:51 GMT

You could set up a cron job that would do a find, searching on the name core and then renaming it to core.`date` or something like that.

Pete

Re: Automatic renaming of core dump file

James R. Ferguson — Thu, 29 Mar 2007 09:30:09 GMT

Hi:

If you want to name a corefile uniquely you can append the process id (pid) thusly (by setting the 'core_pid' kernel variable:

For 11.00 or 11.11:

# echo 'core_addpid/W 1' | adb -k -w /stand/vmunix /dev/kmem

For 11.23:

# echo 'core_addpid/W 1' | adb -o -w /stand/vmunix /dev/kmem

Regards!

...JRF...

Re: Automatic renaming of core dump file

Sandman! — Thu, 29 Mar 2007 09:34:59 GMT

Rename the core file so it is unique and see if this does the trick for you:

# mv core core__$$

the $$ makes the filename unique as it's the pid of the subshell in which the command is executed.

Re: Automatic renaming of core dump file

dscao — Thu, 29 Mar 2007 09:52:43 GMT

Thanks to all.

Re: Automatic renaming of core dump file

Dennis Handly — Thu, 29 Mar 2007 16:11:32 GMT

>JRF: (by setting the 'core_pid' kernel variable:

11.31 has a coreadm command so you don't need to use adb.

Re: Automatic renaming of core dump file

James R. Ferguson — Thu, 29 Mar 2007 16:21:34 GMT

Hi Dennis:

Thanks for the 11.31 info. From some cursory reading and tidbits like those you have provided, I would say 11iv3 has some really NICE features.

Regards!

...JRF...

Re: Automatic renaming of core dump file

Dennis Handly — Thu, 29 Mar 2007 18:17:02 GMT

>JRF: Thanks for the 11.31 info. From some cursory reading and tidbits like those you have provided, I would say 11iv3 has some really NICE features.

You can look at all of the 11.31 documentation:
http://docs.hp.com/en/oshpux11iv3.html#Release%20Notes

And Chapter 3 has what's new:
http://docs.hp.com/en/5991-6469/ch03.html