How do I trigger an nagios server crash purposely ?

[nagmoto]

Hi
Looking at https://github.com/NagiosEnterprises/na ... issues/299.
I am hoping I can learn more on crash debugging using abrt.
Question is how can I trigger nagios server coredump into /var/abrt purposely on my test server ?

[rkennedy]

This is a bit above support that we can provide, but you would need to create a custom configuration file for ABRT. Take a look at this link - https://fedorahosted.org/abrt/wiki/AbrtConfiguration

From what it looks like, hooking abrt into everything, or perhaps starting the process through abrt instead of as a service.

[avandemore]

You should rest up on Linux internals, Nagios processes are subject to those parameters and are not specific to Nagios.

To begin with you want to see ulimit. Good luck!

[nagmoto]

Thanks to avandemore and rkennedy for responses.
To be more specific,on a centos 7.2 nagios test server, I did the following

1.Make sure abrt is enabled and ready to catch the coredump.

Code: Select all

[nagios@nagios02t ~] sleep 100 &
[1] 35223
[nagios@nagios02t ~]$ kill -s SEGV 35223

[nagios@nagios02t ~]$ sudo abrt-cli list
id 184720a9a7be951757917580cc76411d8a492cf4
reason:         sleep killed by SIGSEGV
time:           Thu 15 Dec 2016 03:39:32 AM EST
cmdline:        sleep 100
package:        coreutils-8.22-15.el7_2.1
uid:            35233 (nagios)
count:          1
Directory:      /var/spool/abrt/ccpp-2016-12-15-03:39:32-14701

The Autoreporting feature is disabled. Please consider enabling it by issuing
'abrt-auto-reporting enabled' as a user with root privileges
[nagios@nagios02t ~]$

2. I tried " kill -s SIGSEGV 8041" and it won't trigger the core-dump of nagios server process into /var/spool/abrt.

Code: Select all

[1481786374] wproc: Registry request: name=Core Worker 8046;pid=8046
[1481786374] Successfully launched command file worker with pid 8051
[1481786470] Caught SIGSEGV, shutting down...
[1481786470] Successfully shutdown... (PID=8041)
[1481786470] Event broker module 'NERD' deinitialized successfully.

3. I don't Nagios coredump issure now, but I think it is good idea to know how to deal with Nagios coredump by simulation.
R1: https://access.redhat.com/documentation ... _test.html

[tmcdonald]

This might be the first time we've been asked in a professional context for advice on how to crash our product :)

In this case I would recommend speaking to a Linux admin on your team about this, as it is somewhat out of scope for our forum. Generally speaking if you are unable to get a core dump this is a configuration which must be made at the OS level.

[nagmoto]

ok, please close this thread.