Open source, cross-platform, client/server based systems monitoring solution. Reads the usual metrics such as cpu, disk i/o and network, but also allows for plugins and scripts to extend the functionality. Metrics for shared processor utilization on IBM Power is also measured. The clients need only Java and sends metrics to the server (through HTTP), which stores these in InfluxDB for display through Grafana.
https://github.com/mnellemann/sysmon
Mark Nellemann
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README.md
System Monitor
This software is free to use and is licensed under the Apache 2.0 License.
- Example dashboards are provided in the doc/ folder, which can be imported into your Grafana installation.
- Screenshots are available in the downloads section.
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Components
Client
Runs on your hosts and collects metrics, which are sent to the central server.
Server
Receives aggregated metrics from clients and saves these into InfluxDB.
Plugins
Loaded by the client and provides extensions for doing the actual collecting of metrics.
Known problems
Correct timezone and clock
- Ensure you have correct timezone and date/time and NTPd (or similar) running to keep it accurate!
Naming collision
You can't have hosts with the same name, as these cannot be distinguished when metrics are written to InfluxDB (which uses the hostname as key).
Renaming hosts
If you rename a host, the metrics in InfluxDB will still be available by the old hostname, and new metrics will be written with the new hostname. There is no easy way to migrate the old data, but you can delete it easily:
USE sysmon;
DELETE WHERE hostname = 'unknown';