A blog on monitoring, scale and operational Sanity
November 16, 2020
The node exporter has metrics about the ARP table.
August 31, 2020
Linux provides scheduling metrics in /proc/schedstat, which the node exporter uses.
August 17, 2020
Modern CPUs don't run at one constant frequency.
August 10, 2020
Prometheus 2.20 added a group aggregator. What is it for?
August 3, 2020
/proc/mdstat is another of the files that the node exporter exposes as metrics.
July 13, 2020
The node exporter exposes the current machine time.
June 29, 2020
As of 1.0, the node exporter has experimental support for TLS. This can be hooked up to Letsencrypt.
May 25, 2020
The node exporter includes metrics about the Linux connection tracking tables.
May 18, 2020
To avoid weirdness, write your files atomically.
April 6, 2020
The node exporter provides kernel file descriptor metrics.
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