My customer wants to upgrade Vertica 7.1 to 9.1. Can we still use the license which is used at Version 7.1 to 9.1 without any trouble? Any specification of license file is changed between 7.1 to 9.1?
The 7.1 license will still work in 9.1. There isn't anything to do on the customer end as far as license as long as it is a valid license. For the actual version upgrade, make sure you follow the recommended incremental upgrade path to do it successfully.https://www.vertica.com/docs/9.1.x/HTML/index.htm#Authoring/InstallationGuide/Upgrade/UpgradePaths.htm