Node exporter 0.16.0 is out, and with some big changes. Let’s take a look.read more
When you’ve broken a metric out into labels a common need is to tell what proportion each label represents of the total. The
group_left modifier of Prometheus is the key.
The node exporter includes many metrics out of the box, it can’t possibly cover all use cases though. That’s where the textfile collector comes in, allowing you to extend machine instrumentation for your use case.read more
It’s a best practice with Prometheus that target labels should be constant over a target’s entire lifetime. On the other hand it’s useful to aggregate metrics across all the machines that are currently Apache servers. How can we do that?read more
CPU, RAM, disk and network usage are basic machine metrics you should be monitoring. This is easy with Prometheus and the later releases of Debian.read more
Sometimes you need a machine metric that’s not exported yet by the node exporter. The textfile collector can be used to quickly get such metrics graphed in Prometheus.read more