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On demand host check not executing
Posted: Wed Aug 02, 2017 2:50 pm
by cg28oh
Using Nagios core 4.3.2 with cfg files from Nagios 4.1.1, the host on demand check is not getting executed when a service underneath the host has failed check. I created a new file from scratch with the same parameters, still the host check will not execute. I'm hoping that I misses some setting from 4.1.1 to 4.3.2 that will make it work correctly. The service returns an unknown status and in 4.1.1 it checks the host.
Code: Select all
define host {
host_name HOST001
alias Host 1
address XX.XX.XX.XX
check_command chk_ping
check_interval 0
retry_interval 1
max_check_attempts 2
check_period 24x7
process_perf_data 0
retain_nonstatus_information 0
contact_groups admins
notification_interval 30
notification_period 24x7
notification_options d,u,r
}
define service {
host_name HOST001
service_description SERVICE1
check_command chk_status
max_check_attempts 2
check_interval 2
retry_interval 1
check_period 24x7
notification_interval 30
notification_period 24x7
notification_options w,c,r
contact_groups admins
}
Re: On demand host check not executing
Posted: Thu Aug 03, 2017 1:02 pm
by cdienger
I tested the on demand checks and was seeing the proper behavior with 4.3.2. Can you provide the actual config files(host and service definitions, nagios.cfg, and command.cfg)? as well as clear description on how you're testing this?
Re: On demand host check not executing
Posted: Fri Aug 04, 2017 9:11 am
by cg28oh
I used the tutorial at
http://www.itzgeek.com/how-tos/linux/ub ... 16-04.html and installed it on an Ubuntu Server 16.04 lxc container.
Re: On demand host check not executing
Posted: Fri Aug 04, 2017 2:54 pm
by cdienger
I'd really like to see the config for the host and service. If you're unable to post them here, can you PM them to me? Better yet, create a profile under Admin > System > System Profile and send that along with the name of the host and service.
Re: On demand host check not executing
Posted: Fri Aug 04, 2017 4:53 pm
by cg28oh
Files PM'd
Re: On demand host check not executing
Posted: Mon Aug 07, 2017 3:28 pm
by dwhitfield
There is no chk_status in your commands.cfg. Is that a replacement command? What command should it be?
Re: On demand host check not executing
Posted: Thu Aug 10, 2017 5:00 pm
by cg28oh
Ok, there must be something I'm missing. I complied Nagios 4.3.2 on Fedora 26 server and still have the issue. I have even removed my 4.1.1 configs and create new ones from scratch and the host on demand check isn't executing when the service check alarms. Here is the host config:
Code: Select all
define host {
host_name LAB2
address 10.220.0.9
check_command check-host-alive
active_checks_enabled 1
check_interval 0
retry_interval 1
max_check_attempts 2
check_period 24x7
process_perf_data 0
contact_groups admins
notifications_enabled 0
notification_interval 30
notification_period 24x7
notification_options d,r
}
define service {
host_name LAB2
service_description Uptime
check_command check_uptime
max_check_attempts 2
check_interval 2
retry_interval 1
check_period 24x7
notifications_enabled 0
notification_interval 30
contact_groups admins
}
Everything else is stock with exception of this added to commands.cfg
Code: Select all
define command{
command_name check_uptime
command_line $USER1$/check_snmp -C PUBLIC -H $HOSTADDRESS$ -o sysUpTime.0
}
Re: On demand host check not executing
Posted: Fri Aug 11, 2017 9:09 am
by cg28oh
This is defiantly something with release 4.3.5. Release 4.2.4 works properly with the attached files.
Re: On demand host check not executing
Posted: Fri Aug 11, 2017 1:54 pm
by dwhitfield
Are you sure they aren't getting executed? Are they just not incrementing?
on-demand host checks triggered by service checks cause attempt number increments (fredericve)
-
https://github.com/NagiosEnterprises/na ... /Changelog
That code is available at
https://github.com/NagiosEnterprises/na ... ea93371d32
Assuming I am understanding the issue properly, you can either change it back and recompile, or just leave it as the default with a new understanding.
Re: On demand host check not executing
Posted: Fri Aug 11, 2017 2:53 pm
by cg28oh
I am positive that the host check isn't executing. Using tcpdump, I only see the snmp tries and no icmp traffic to the host. the host check is check-host-alive. Changing it back seemed to work to more what we are use to. I'd like to understand how this the change operates so I can perhaps make a config change to produce the desired result.