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Upgrading from Percona Server for MongoDB 6.0 to 7.0

Considerations

1.To upgrade Percona Server for MongoDB to version 7.0, you must be running version 6.0. Upgrades from earlier versions are not supported.

  1. Before upgrading your production Percona Server for MongoDB deployments, test all your applications in a testing environment to make sure they are compatible with the new version. For more information, see Compatibility Changes in MongoDB 7.0

  2. If you are using data-at-rest-encryption with KMIP server, check the upgrade considerations

We recommend to upgrade Percona Server for MongoDB from official Percona repositories using percona-release repository management tool and the corresponding package manager for your system.

This document describes this method for the in-place upgrade (where your existing data and configuration files are preserved).

Prerequisites

Before the upgrade, do the following:

  1. Make a full backup of your data and configuration files

  2. In Percona Server for MongoDB 7.0, journaling is enabled by default. Both the storage.journal.enabled configuration option and the corresponding --journal, --no-journal command-line options are ignored. You receive the corresponding warning during the server start after the upgrade. To get rid of this warning, change your configuration to remove the journaling options.

  1. Stop the mongod service:

    $ sudo systemctl stop mongod

  2. Enable Percona repository for Percona Server for MongoDB 7.0:

    $ sudo percona-release enable psmdb-70

  3. Update the local cache:

    $ sudo apt update

  4. Install Percona Server for MongoDB 7.0 packages:

    $ sudo apt install percona-server-mongodb

  5. Start the mongod instance:

    $ sudo systemctl start mongod

For more information, see Installing Percona Server for MongoDB on Debian and Ubuntu.

  1. Stop the mongod service:

    $ sudo systemctl stop mongod

  2. Enable Percona repository for Percona Server for MongoDB 7.0:

    $ sudo percona-release enable psmdb-70

  3. Install Percona Server for MongoDB 7.0 packages:

    $ sudo yum install percona-server-mongodb

  4. Start the mongod instance:

    $ sudo systemctl start mongod

After the upgrade, Percona Server for MongoDB is started with the feature set of 6.0 version. Assuming that your applications are compatible with the new version, enable 7.0 version features. Run the following command against the admin database:

> db.adminCommand( { setFeatureCompatibilityVersion: "7.0", confirm: true } )

See also

MongoDB Documentation: