Lab
A Cloud Guru

PostgreSQL Database Replication Demo on Linux

In this lab you are working as a QA (Quality Assurance) engineer and have been tasked with confirming two PostgreSQL servers are correctly configured for Primary-Replica replication.

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Path Info

Level

Beginner

Duration

15m

Published

Jun 26, 2020

Challenge

Connect to the Replica Server and Query It
Connect to the replica server using the psql client:
```
sudo -u postgres psql
```
Confirm that read-only queries work by listing the databases:
```
\l
```
Run a write query, and confirm that it fails:
```
CREATE DATABASE DEMO;
```
Challenge

Connect to the Primary Server and Query It
Connect to the primary server using the psql client:
```
sudo -u postgres psql
```
Confirm that write queries work:
```
CREATE DATABASE DEMO;
```
Challenge

Query the Replica Server and Confirm Changes Made on Primary
Back on replica server, re-run the list database command.
```
\l
```

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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