From 7.7.0 onwards, App Search is distributed as Elastic Enterprise Search, a solution which combines Elastic App Search and Elastic Workplace Search into a single package (read the Elastic Cloud announcement). That transition means there is no direct upgrade path from App Search 7.6 to 7.7. Rather, App Search 7.6 users must migrate to Enterprise Search. The following document outlines the migration process.
As of 7.9.1, there are a few known issues with the migration process, outlined below. Although it is generally safe to migrate now, you may wish to wait until the following issues are resolved.
Always make sure you have the latest backups for your original App Search deployment and do not switch production traffic to Enterprise Search until you have fully vetted its functionality.
Migration process overviewedit
There is an assistant to help you migrate your App Search deployment to Enterprise Search, available when you click on "Upgrade" in your Deployments page. A step-by-step guide to migrating is available:
Known migration issuesedit
As of 7.9.1, there are a few known issues around migration:
The Elastic Cloud upgrade path provides a few deployment template options. Choosing anything other than "Elastic Enterprise Search" may under-provision your deployment, which may lead to downtime or other severe issues.
Currently, if you create an Enterprise Search deployment from an App Search snapshot or attempt a migration using the provided Elastic Cloud upgrade process, the new deployment may fail to start Enterprise Search instances.
It is a known issue related to the snapshot recovery process on very large deployments and it will be addressed in the next Enterprise Search release. If you’ve experienced this, you have two options:
- Re-apply the deployment plan on your new Enterprise Search cluster by clicking "Edit" within Elastic Cloud view of your deployment and then "Save" without making any changes. This will retry the Enterprise Search instance provisioning process and should get your deployment into a healthy state.
- Revert to your existing App Search deployment and contact support to assist you with the migration process.
Always remember to disable the read-only mode if you are rolling back to your original App Search deployment.