We are really excited about MySQL 8.0 new features (https://dev.mysql.com/doc/refman/8.0/en/mysql-nutshell.html) and our consultants spend several hours weekly, testing new features and doing research on how best we can create value for our customers from having those in production. Being an pure-play MySQL consulting, support and remote DBA services company, We are fully accountable for our customer database infrastructure operations performance, scalability, high availability and reliability. As we are aggressive about gaining maximum results from MySQL 8 investments made by our customers, We are equally conservative (our customer data reliability is critical for us !) on adopting new features, until we are fully confident after several rounds of testing (at different scales on multiple platforms) and technical review (we engage both internal and external consultants for acceptance) and acceptance before deployment in production infrastructure. In the previous versions of MySQL, before every upgrade our consultants manually spend several hours testing compatibility but MySQL 8 made this simple by introducing “upgrade checker” javascript with MySQL Shell 8.0.11 , In this blog we are writing about “upgrade checker” utility and upgrade from MySQL 5.7 to MySQL 8.0 .
Using MySQL Shell 8.0.11 “upgrade checker”
Typical “upgrade checker” run will look similar to this:
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MySQL JS>util.checkForServerUpgrade("root@localhost:3306")
Please provide the password for'root@localhost:3306':**********
The MySQL server atlocalhost:3306will now be checked forcompatibility issues forupgrade toMySQL8.0...
MySQL version:5.7.22-log-MySQL Community Server(GPL)
1)Usage of db objects with names conflicting with reserved keywords in8.0
No issues found
2)Usage of utf8mb3 charset
Warning:The following objects usethe utf8mb3 character set.It isrecommended toconvert them touseutf8mb4 instead,forimproved Unicode support.
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