---
title: "Sentinel and primary failover"
description: "How can you trace Sentinel primary failover during an outage?"
status: "coming-soon"
language: "en"
canonical: "https://bulnik.dev/en/articles/topics/T13.04/"
topicId: "T13.04"
---

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

## The question

How can you trace Sentinel primary failover during an outage?

## What we will work through

Trace Sentinel primary failover during an outage.

## Before you begin

Previously covered: Replication and replica lag.

- [Replication and replica lag](/en/articles/topics/T13.03/)