Upgrading
Guide to upgrading Apache HBase between major versions, including requirements, compatibility considerations, and step-by-step procedures.
You cannot skip major versions when upgrading. If you are upgrading from version 0.98.x to 2.x, you must first go from 0.98.x to 1.2.x and then go from 1.2.x to 2.x.
Review Apache HBase Configuration, in particular Hadoop. Familiarize yourself with Support and Testing Expectations.
In this section:
HBase version number and compatibility
Understanding HBase semantic versioning scheme and compatibility guarantees across major, minor, and patch versions.
Rolling Upgrades
How to perform rolling upgrades across HBase versions that are binary or wire compatible without cluster downtime.
Rollback
How to rollback an HBase upgrade to restore the cluster to a previous version, including backup procedures and data recovery steps.
Upgrade Paths
Detailed upgrade paths and compatibility considerations when upgrading between HBase major versions (2.x to 3.x, 1.x to 2.x, etc.).