Novice Level

Back Up the Cluster Metadata of a MongoDB Sharded Cluster

Pricing
45 minutes
  • 3 Learning Objectives

About this Hands-on Lab

In this lab, students are asked to back up the metadata of a MongoDB replica set. The cluster metadata includes all configuration information for the cluster, especially the mapping from chunks to shards. After completing this lab, students will have hands-on experience backing up the metadata of a MongoDB replica set.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Disable the Cluster Balancer Process

Connect using mongosh to the mongos query router running on 10.0.0.101:27017 and disable the balancer process.

Create a Full Copy of Config Instance

Connect to the config server via SSH and make a full backup of the data set.

Re-enable the Balancer

Connect using mongosh to the mongos query router running on 10.0.0.101:27017 and re-enable the balancer process.

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Additional Resources

You are working as a DBA and are tasked with backing up the metadata of a MongoDB Replica Set. Thankfully, you've just completed an awesome Mongo Deep Dive course on acloud.guru that showed you how to do just this.

To accomplish this, you will need to complete the following tasks on each secondary member:

  • Disable the cluster balancer process
  • Back up dbPath of config server
  • Re-enable the cluster balancer process

What are Hands-on Labs

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

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