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{section} The integration of Petals ESB and Nagios is based on getting information about the JVM. This is done using SNMP probes.
...{include:Enabling the SNMP agents of the Petals ESB JVMs}
h1. Nagios configuration
h2. JVM host template
A best practice to monitor Java application is to create a template 'JVM host'.
According to our environement defined above, create the file 'jvm-host-nagios2.cfg' in the directory '/etc/nagios3/conf.d' with the followin content:
{code}
define host{
use generic-host
name jvm-host ; The name of this host template
notifications_enabled 1 ; Host notifications are enabled
event_handler_enabled 1 ; Host event handler is enabled
flap_detection_enabled 1 ; Flap detection is enabled
failure_prediction_enabled 1 ; Failure prediction is enabled
process_perf_data 1 ; Process performance data
retain_status_information 1 ; Retain status information across program restarts
retain_nonstatus_information 1 ; Retain non-status information across program restarts
check_command check-host-alive
max_check_attempts 10
notification_interval 0
notification_period 24x7
notification_options d,u,r
contact_groups admins
register 0 ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
# Specific attributes
_snmp_port 161 ; Listening port of the JVM SNMP agent
}
{code}
h2. JVM host template
A best practice to monitor Java application is to create a template 'JVM host'.
According to our environement defined above, create the file 'jvm-host-nagios2.cfg' in the directory '/etc/nagios3/conf.d' with the followin content:
{code}
define host{
use generic-host
name jvm-host ; The name of this host template
notifications_enabled 1 ; Host notifications are enabled
event_handler_enabled 1 ; Host event handler is enabled
flap_detection_enabled 1 ; Flap detection is enabled
failure_prediction_enabled 1 ; Failure prediction is enabled
process_perf_data 1 ; Process performance data
retain_status_information 1 ; Retain status information across program restarts
retain_nonstatus_information 1 ; Retain non-status information across program restarts
check_command check-host-alive
max_check_attempts 10
notification_interval 0
notification_period 24x7
notification_options d,u,r
contact_groups admins
register 0 ; DONT REGISTER THIS DEFINITION - ITS NOT A REAL HOST, JUST A TEMPLATE!
# Specific attributes
_snmp_port 161 ; Listening port of the JVM SNMP agent
}
{code}
h2. Nagios commands definition to interact with a SNMP agent
...define command{
command_name jvm_heapused
command_name jvm_heapused
command_line /usr/lib/nagios/plugins/check_snmp -H '$HOSTADDRESS$' -p '$ARG1$' -C '$ARG2$' -P '$ARG3$' -o 1.3.6.1.4.1.42.2.145.3.163.1.1.2.11.0 -w :'$ARG4$' -c :'$ARG5$' -l load
command_line /usr/lib/nagios/plugins/check_snmp -H '$HOSTADDRESS$' -p '$HOSTSNMPPORT$' -C '$ARG1$' -P '$ARG2$' -o 1.3.6.1.4.1.42.2.145.3.163.1.1.2.11.0 -w :'$ARG3$' -c :'$ARG4$' -l load
}
...define command{
command_name jvm_heapmax
command_name jvm_heapmax
command_line /usr/lib/nagios/plugins/check_snmp -H '$HOSTADDRESS$' -p '$ARG1$' -C '$ARG2$' -P '$ARG3$' -o 1.3.6.1.4.1.42.2.145.3.163.1.1.2.13.0 -w :'$ARG4$' -c :'$ARG5$' -l load
command_line /usr/lib/nagios/plugins/check_snmp -H '$HOSTADDRESS$' -p '$HOSTSNMPPORT$' -C '$ARG1$' -P '$ARG2$' -o 1.3.6.1.4.1.42.2.145.3.163.1.1.2.13.0 -w :'$ARG3$' -c :'$ARG4$' -l load
}
{code}
{code}
...{panel:title=Contributors}{contributors:order=name|mode=list}{panel}
{column}
{column}
{section}HOSTSNMPPORT