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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September 21, 2020

Don’t Try to Swim Upstream

Have you ever felt that a piece of software just isn't doing what you need?

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July 20, 2020

Delete All Your Alerts

Trying to improve alerting piecemeal can be difficult.

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June 22, 2020

Remote read and partial failures

What happens when your clustered storage fails?

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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 20, 2020

Don’t federate instance labels

Federation can be quite useful, but it's not replication.

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March 2, 2020

Setting Thresholds on Alerts

Alert thresholds can be surprisingly tricky to get right.

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February 24, 2020

Regex Selectors are a Smell

Have you ever found yourself having to keep on updating and tweaking certain regexes in PromQL?

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