Reliable Insights

A blog on monitoring, scale and operational Sanity

December 28, 2020

Monitoring is a means, not an end

Does it really have to be perfect?

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December 21, 2020

Policy is for configuration, not metric names

Metric names are part of a time series's identity, so shouldn't include information unrelated to identity.

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December 14, 2020

Prefer without and ignoring

Which of by/without and on/ignoring should you use?

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December 7, 2020

Choosing your pushgateway grouping key

What does and doesn't make a good grouping key?

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November 30, 2020

New Features in Prometheus 2.23.0

Prometheus 2.23.0 is now out, following on from 2.22.0 with many fixes and improvements.

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November 23, 2020

OpenMetrics is released

Coming soon to a standards body near you.

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November 16, 2020

ARP cache metrics from the node exporter

The node exporter has metrics about the ARP table.

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November 9, 2020

Why is my SNMP string showing as hexadecimal?

Why is my name showing as 0x6d79206e616d65?

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November 2, 2020

Checking for specific HTTP status codes with the blackbox exporter

How would you check that a HTTP endpoint is returning a 204?

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October 26, 2020

Show multiple expressions for an instance in a Grafana table

Have you ever wanted to have a table showing multiple metrics across all of your instances?

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