Reliable Insights

A blog on monitoring, scale and operational Sanity

May 15, 2017

A Silence is a Snooze

Have you ever wondered what exactly that "Silence" button on each of your alerts in the Alertmanager actually does? Perhaps you have an idea but are unsure of their correct usage or value.
In this post I aim to clear up any confusion surrounding the silencing of alerts, so you can make the most of its functionality and understand when and why to use them.
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May 8, 2017

Productive Prometheus Python Parsing

Prometheus client libraries don't just export metrics in our format, they can parse that format too.

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May 1, 2017

Common query patterns in PromQL

For day to day use, there's only a handful of PromQL patterns you need to know. Let's look at them.

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April 24, 2017

PromQL queries against SQL databases using a read adapter

Prometheus 1.6 includes a new experimental feature called remote read. Let's look at what it can do.

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April 17, 2017

New Features in Prometheus 1.6.0

After 1.5.0 earlier in the year, Prometheus 1.6.0 is now out. There's a plethora of changes, so let's dive in.

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April 10, 2017

OpenShift and Prometheus

Ever wanted to use Prometheus for monitoring and alerting on the OpenShift platform?

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April 3, 2017

relabel_configs vs metric_relabel_configs

We've looked at the full Life of a Label. Let's focus on one of the most common confusions around relabelling.

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March 27, 2017

Combining alert conditions

Prometheus alerts use the same powerful PromQL expressions as queries and graphs. This can be used to produce sophisticated alerts.

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March 20, 2017

Extracting full labels from Consul tags

Prometheus 1.3.0 contained a small change that makes it possible to extract arbitrary labels from systems like Consul that only normally support one-dimensional tags.

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March 13, 2017

Sending alert notifications to multiple destinations

Usually the Prometheus Alertmanager will send a given notification to only one destination. What if you want it to go to both Slack and Pagerduty though?

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