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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
Clock icon Beginner
Duration
Clock icon 15m
Published
Clock icon Jun 26, 2020

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Table of Contents

  1. 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;

  2. 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;

  3. Challenge

    Query the Replica Server and Confirm Changes Made on Primary

    Back on replica server, re-run the list database command.

    \l
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