Upgrading MySQL (Percona Server) from 5.7 to 8.0

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Technologies evolve all the time, and the number of reasons to upgrade your MySQL to the latest versions grows with every passing day. Not long ago, the time came to migrate one of those good old Percona Server 5.7 clusters to v8.0. All this happened on the platform running Ubuntu Linux 16.04. In this article, we will show you how to perform such a task with minimum downtime and share details about the challenges we’ve encountered during this upgrade.

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