Reliable Insights

A blog on monitoring, scale and operational Sanity

March 9, 2020

Temperature and hardware monitoring metrics from the node exporter

The node exporter exposes the various hardware monitoring metrics of Linux, including temperature, fans, and voltages.

Read more

January 6, 2020

Network interface metrics from the node exporter

Along with many others, the node exporter exposes network interface metrics.

Read more

November 25, 2019

Filesystem metrics from the node exporter

The node exporter exposes filesystem metrics out of the box, so let's take a look.

Read more

May 20, 2019

Analyse a metric by kernel version

Using PromQL you can combine metrics for analysis.

Read more

March 11, 2019

Mapping iostat to the node exporter’s node_disk_* metrics

The node exporter and tools like iostat and sar use the same core data, but how do they relate to each other?

Read more

September 10, 2018

Using the textfile collector from a shell script

The textfile collector is handy for monitoring machine-level cronjobs. How would you go about that?

Read more

May 21, 2018

New Features in Node Exporter 0.16.0

Node exporter 0.16.0 is out, and with some big changes. Let's take a look.

Read more

April 26, 2016

Using group_left to calculate label proportions

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.

Read more

December 30, 2015

Understanding Machine CPU usage

High CPU load is a common cause of issues. Let's look at how to dig into it with Prometheus and the Node exporter.

Read more

November 23, 2015

Monitoring directory sizes with the Textfile Collector

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


Blog   |   Training   |   Book   |   Careers   |   Privacy   |   Demo