---
title: "Replication and replica lag"
description: "How can you measure Redis replica lag behind its primary?"
status: "coming-soon"
language: "en"
canonical: "https://bulnik.dev/en/articles/topics/T13.03/"
topicId: "T13.03"
---

> Coming soon — this article is being prepared. Below are its question, intended outcome, and place in the story.

## The question

How can you measure Redis replica lag behind its primary?

## What we will work through

Measure Redis replica lag behind its primary.

## Before you begin

Previously covered: Choosing a Redis data structure for a task.

- [Choosing a Redis data structure for a task](/en/articles/topics/T11.01/)