This page summarizes the steps for upgrading from release 6.1 to release 6.2 by using a manual rolling
upgrade. In this workflow, the cluster to be upgraded is nonsecure; after the upgrade, the
cluster will continue to be nonsecure, but can be secured by using manual steps.
Note: This workflow assumes that the cluster to be upgraded is running release
6.1.0 with
MEP 6.3.1 (or later
MEP 6.3.x), and the cluster operating system is one of the
following:
- RHEL / CentOS 8.3
- RHEL / CentOS 8.2
- Ubuntu 18.04
- Ubuntu 16.04
Manual Rolling Upgrade Summary
In a manual rolling upgrade, you upgrade the software one node at a time so that the
cluster as a whole remains operational throughout the process. The manual rolling upgrade
requires you to:
- Perform pre-upgrade checks.
- Perform a rolling upgrade of core.
- Verify that all use cases are functional on the cluster.
- Upgrade the MEP to 7.x.
- Merge custom configuration settings.
- Enable release 6.2.0
features.
- Perform post-upgrade checks.
The workflow later in this section provides more detail to help you get started with a
manual rolling upgrade.
Considerations for Manual Rolling Upgrades
Before performing a manual rolling upgrade, note these considerations:
- Rolling upgrades only upgrade core packages, not ecosystem components. A rolling
upgrade of ecosystem components is not supported.
- If you choose to do a rolling upgrade on a cluster with core and ecosystem components,
the ecosystem components will continue to work during the rolling upgrade as long as the
ecosystem components are not updated. If you choose to upgrade core and ecosystem
components together, the ecosystem components might not function properly during the
upgrade process.
- After upgrading core to release 6.2.0, you must upgrade ecosystem
components to MEP 7.0.0 or later, and this
must be done before you enable release 6.2.0 features.
Manual Rolling Upgrade Workflow
| High-Level Steps |
Detailed Information (review all items unless noted otherwise) |
| 1. Understand MapR Core/MEP Dependencies 
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| 2. Plan for the MapR Core Upgrade 
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| 3. Plan for the MEP Upgrade 
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| 4. Perform Pre-Upgrade Steps for MapR Core 
|
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| 5. Prepare to Upgrade MEP Components 
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| 6. Set up Repositories 
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| 7. Perform the Manual Rolling Upgrade 
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| 8. Upgrade the MEP Components 
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| 9. Perform Post-Upgrade Steps for MEP 
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| 10. Perform Post-Upgrade Steps for MapR Core 
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| 11. Install Additional MapR Core Features 
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| 12. Secure the Upgraded Cluster |
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