Node Exporter Linux Metrics
This pack helps you monitor your Linux server based on metrics exported by Node exporter.
Pack Assets
Templates
The Centreon Monitoring Connector Node Exporter Linux Metrics brings a host template:
- App-Monitoring-Node-Exporter-Linux-custom
It brings the following service templates:
| Service Alias | Service Template | Service Description | Default | Discovery |
|---|---|---|---|---|
| Node-Cpu | App-Monitoring-Node-Exporter-Linux-Cpu | Check node CPU usage | X | |
| Node-Load | App-Monitoring-Node-Exporter-Linux-Load | Check node load | X | |
| Node-Memory | App-Monitoring-Node-Exporter-Linux-Memory | Check node memory usage | X | |
| Node-Storage | App-Monitoring-Node-Exporter-Linux-Storage | Check node storage usage | X | X |
| Node-Traffic | App-Monitoring-Node-Exporter-Linux-Traffic | Check node CPU usage | X | X |
Discovery rules
| Rule Name | Description |
|---|---|
| App-Monitoring-Node-Exporter-Linux-Interface-Name | Discover Linux server's interfaces to automatically monitor them |
| App-Monitoring-Node-Exporter-Linux-Storage-Name | Discover Linux server's partitions to automatically monitor them |
Collected metrics & status
- Node-Cpu
- Node-Load
- Node-Memory
- Node-Storage
- Node-Traffic
| Metric Name | Unit |
|---|---|
| cpu.utilization.percentage | % |
| node_cpu#node.cpu.idle.utilization.percentage | % |
| node_cpu#node.cpu.iowait.utilization.percentage | % |
| node_cpu#node.cpu.irq.utilization.percentage | % |
| node_cpu#node.cpu.nice.utilization.percentage | % |
| node_cpu#node.cpu.softirq.utilization.percentage | % |
| node_cpu#node.cpu.steal.utilization.percentage | % |
| node_cpu#node.cpu.system.utilization.percentage | % |
| node_cpu#node.cpu.user.utilization.percentage | % |
| Metric Name | Unit |
|---|---|
| load.1minute.count | count |
| load.15minutes.count | count |
| load.5minutes.count | count |
| Metric Name | Unit |
|---|---|
| node.memory.buffer.bytes | B |
| node.memory.cached.bytes | B |
| usage | % |
| Metric Name | Unit |
|---|---|
| node_storage#usage | % |
| Metric Name | Unit |
|---|---|
| status | |
| node.packets.in.count | count |
| node.packets.out.count | count |
| node.traffic.in.bitspersecond | b/s |
| node.traffic.out.bitspersecond | b/s |
Prerequisites
To install Node exporter on your Linux server please refer to this documentation: https://prometheus.io/docs/guides/node-exporter/#installing-and-running-the-node-exporter.
Setup
- Online License
- Offline License
- Install the package on every Centreon poller expected to monitor Node Exporter Linux Metrics resources:
yum install centreon-plugin-Applications-Monitoring-Nodeexporter-Linux
- On the Centreon web interface, on page Configuration > Monitoring Connector Manager, install the Node Exporter Linux Metrics Centreon Monitoring Connector.
- Install the package on every Centreon poller expected to monitor Node Exporter Linux Metrics resources:
yum install centreon-plugin-Applications-Monitoring-Nodeexporter-Linux
- Install the Node Exporter Linux Metrics Centreon Monitoring Connector RPM on the Centreon central server:
yum install centreon-pack-applications-monitoring-node-exporter-linux
- On the Centreon web interface, on page Configuration > Monitoring Connector Manager, install the Node Exporter Linux Metrics Centreon Monitoring Connector.
Configuration
Host
- Log into Centreon and add a new host through Configuration > Hosts.
- Fill the Name, Alias & IP Address/DNS fields according to your Node Exporter Linux Metrics server settings.
- Apply the App-Monitoring-Node-Exporter-Linux-custom template to the host.
- Once the template is applied, fill in the corresponding macros. Some macros are mandatory.
| Mandatory | Macro | Description |
|---|---|---|
| EXTRAOPTIONS | Any extra option you may want to add to every command line (eg. a --verbose flag) | |
| NODEEXPORTERPORT | (Default: '9100') | |
| NODEEXPORTERPROTO | (Default: 'http') | |
| NODEEXPORTERURL | (Default: '/metrics') |
How to check in the CLI that the configuration is OK and what are the main options for?
Once the plugin is installed, log into your Centreon poller's CLI using the
centreon-engine user account (su - centreon-engine) and test the plugin by
running the following command:
/usr/lib/centreon/plugins//centreon_monitoring_nodeexporter_linux.pl \
--plugin=apps::monitoring::nodeexporter::linux::plugin \
--mode=load \
--hostname=10.0.0.1 \
--urlpath='/metrics' \
--port='9100' \
--proto='http' \
--warning-load1='' \
--critical-load1='' \
--warning-load5='' \
--critical-load5='' \
--warning-load15='' \
--critical-load15='' \
--use-new-perfdata
The expected command output is shown below:
OK: Load 1 minute: 0.49, Load 5 minutes: 0.71, Load 15 minutes: 0.66 | 'load.1minute.count'=0.49;;;0; 'load.5minutes.count'=0.71;;;0; 'load.15minutes.count'=0.66;;;0;
All available options for a given mode can be displayed by adding the
--help parameter to the command:
/usr/lib/centreon/plugins//centreon_monitoring_nodeexporter_linux.pl \
--plugin=apps::monitoring::nodeexporter::linux::plugin \
--mode=load \
--help
All available modes can be displayed by adding the --list-mode parameter to
the command:
/usr/lib/centreon/plugins//centreon_monitoring_nodeexporter_linux.pl \
--plugin=apps::monitoring::nodeexporter::linux::plugin \
--list-mode
Troubleshooting
Please find the troubleshooting documentation for Centreon Plugins typical issues.