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# What is observability

One of the fallacies of distributed computing states that observability is optional. In this project, we will show you why that's wrong and will help you to make your systems more observable.

## What it is

Observability is the capability to continuously generate and discover actionable insights based on signals from the system under observation. In other words, observability allows users to understand a system’s state from its external output and take (corrective) action.


## Problem it addresses

Computer systems are measured by observing low-level signals such as CPU time, memory, disk space, and higher-level and business signals, including API response times, errors, transactions per second, etc.
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