Linux HA Heartbeat/Monitoring with Nagios
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Contents
[*] 1Requirements
[*] 2Linux HA Server
[*] 2.1Script
[*] 2.2Configuration
[*] 3Nagios Server
[*] 3.1template.cfg
[*] 3.2host file
Requirements
You need to have a Nagios NRPE server running on the host.
The host need to have the command /usr/bin/cl_status accessible to user nrpe.
Linux HA Server
Script
The script will return a Nagios code of:
[*] OK: when the number of registered nodes and active nodes is equal
[*] WARNING: If at least one node is active
[*] CRITICAL: If the cluster status could not be accessed or if no nodes are active
You can get it here: media:check_heartbeat.sh
Copy it to your nagios plugins directory, in my case: /usr/local/nagios/libexec/
# cp check_hearbeat.sh /usr/local/nagios/libexec/check_heartbeat.sh
# chmod 755 /usr/local/nagios/libexec/check_heartbeat.sh
Configuration
Add the following to /etc/nagios/nrpe_local.cfg
command=/usr/local/nagios/libexec/check_heartbeat.sh
and reload nrpe server:
# /etc/init.d/nagios-nrpe-server reload
Nagios Server
template.cfg
Add the following template:
# check LVS Heartbeat
define service{
use generic-service
name check-heartbeat
service_description Linux HA LVS
check_command check_nrpe!check_heartbeat
}
host file
Add the following service definition:
#check heartbeat
define service{
use check-heartbeat
host_name lvs1, lvs2
}
Retrieved from "http://wiki.debuntu.org/wiki/Linux_HA_Heartbeat/Monitoring_with_Nagios"
Categories: Monitoring | Network | Nagios | Heartbeat
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