Reliable Insights

A blog on monitoring, scale and operational Sanity

August 5, 2019

Putting queues in front of Prometheus for reliability

On a regular basis a potential Prometheus user says they need a different architecture to make things reliable or scalable. Let's look at that.

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July 22, 2019

How should pipelines be monitored?

For online serving systems it's fairly well known that you should look for request rate, errors and duration. What about offline processing pipelines though?

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June 17, 2019

Idempotent Cron Jobs are Operable Cron Jobs

Having to reconstruct how far a failed cron job had gotten and what exact parameters it was run with can be error prone and time consuming. There is a better way.

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May 13, 2019

Be discerning in what dashboards you share with users

There's no way that sharing metrics with your users or customers can go wrong. Right?

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April 29, 2019

Avoid the Wall of Graphs

Data is not the same as information.

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October 29, 2018

How many metrics should an application return?

While each application is different, a rough idea of how many metric there should be would be useful.

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October 1, 2018

What is a job label for?

The job label is one of the labels your targets will always have. So how can you use it?

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August 13, 2018

Why predeclare metrics?

The standard way to use metrics in Prometheus is to declare them at file level, before using them. Why?

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June 4, 2018

Will using Prometheus instrumentation clients lock me in?

Considering using Prometheus, but worried about committing to using our clients?

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April 16, 2018

When to Alert with Prometheus

Alerting is an art. One must be sure to alert just enough to be aware of all problems arising in the monitored system while at the same time not drown out the signal with excess noise. In this blogpost we'll explain some of the best practices to use when alerting with Prometheus.

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