MySQL - Upgrading from 5.5 to 5.6 I have MySQL community version 5.5.50 running in linux having 4-5 databases on it.

Requirement is to upgrade to Percona Server 5.6.31-77.0.

What are the pre-requisites that I need to check before upgrading? Are there any common errors that i'm likely to face?

I'm simply planning to backup the databases. Remove the MySQL binaries. Install the new Percona Server and restore the databases.
Backing up the database is a best practice right before upgrading to any version. You can use mysqldump, Xtrabackup, mydumper .

Replacing MySQL community packages with Percona Server packages should do the job just make sure to execute mysql_upgrade after starting up PS 5.6 the first time.


  Percona Server is a free, fully compatible, enhanced, open source drop-in replacement for MySQL®


Always check the error log after the upgrade.