Reliable Insights

A blog on monitoring, scale and operational Sanity

June 29, 2020

Using Letsencrypt with the node exporter

As of 1.0, the node exporter has experimental support for TLS. This can be hooked up to Letsencrypt.

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May 25, 2020

Conntrack metrics from the node exporter

The node exporter includes metrics about the Linux connection tracking tables.

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May 18, 2020

Atomic Writes and the Textfile Collector

To avoid weirdness, write your files atomically.

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April 6, 2020

Kernel file descriptor metrics from the node exporter

The node exporter provides kernel file descriptor metrics.

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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.

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January 6, 2020

Network interface metrics from the node exporter

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

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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.

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May 20, 2019

Analyse a metric by kernel version

Using PromQL you can combine metrics for analysis.

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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?

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September 10, 2018

Using the textfile collector from a shell script

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

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