It is highly recommended to upgrade to 1.6 version first and then make an attempt to upgrade to either 2.4 or 2.5 latest versions.
We have done something similar almost around a year back, please feel free to check out the blog posts: https://engineering.salesforce.com/implementing-salesforces-largest-database-upgrade-inside-the-migration-to-hbase-2/ https://engineering.salesforce.com/wp-content/uploads/2023/12/SFDC-HBase2-Phoenix5-Paper-2023.pdf While we have not upgraded Hadoop and Zookeeper together with HBase, if total cluster shutdown (planned maintenance) is not a concern for you, you can also attempt to upgrade them together. Though I would still recommend to upgrade them later. We used Hadoop 2.10 and Zookeeper 3.4 with HBase 1.6. First, we upgraded HBase to 2.4. Later on, we upgraded Hadoop to 3.3 and Zookeeper to 3.7 (both together in single upgrade). Keeping HBase major upgrade in separate release would be better. On Wed, Jul 24, 2024 at 11:42 PM Roshan <jlks...@gmail.com> wrote: > Dear Team, > > We are currently using HBase 1.4.14 in our cluster and are planning to > upgrade to version 2.5. I could not find specific documentation on direct > upgrades from 1.4.x to 2.5. Could you please advise on the following: > > 1. Is a direct upgrade from HBase 1.4.14 to 2.5 possible and safe? > 2. Are there any known issues or considerations we should be aware of? > 3. Do you have any insights or experiences to share regarding this > upgrade? > > Additionally, we are using Hadoop 2.7.3 and Zookeeper 3.4.10, and we are > planning to upgrade these components as well. Any guidance on the upgrade > procedures for each component, including potential compatibility issues or > best practices, would be greatly appreciated. > > Thank you in advance for your assistance > > Regards, > > Roshan >
