The Percona version of MySQL has been such a good replacement for the generic MySQL version that many of the features and options that existed in Percona have been merged into the generic MySQL.
Innodb_fast_checksum was an option added to improve the performance of checksums.
The system variable was replaced by innodb_checksum_algorithm in 5.7.
Unfortunately, when you go to upgrade from Percona 5.x to Percona (or generic mysql) 5.6, an in-place upgrade will fail.
The error(s) will be …[Read more...]