Upgrading from MySQL 5.0 to MySQL 5.1 or Percona Server 5.1 you may run into issues with mysql_upgrade – it will identify some tables to be upgraded and will attempt to run REPAIR TABLE for them. This will fail with “The storage engine for the table doesn’t support repair” error message. This seems to confuse a lot of people and I’ve seen people doing failsafe upgrade path of dumping and reloading complete database confused by this error message, which of course works, but can take quite a lot of time.
Another solution is to simply run ALTER TABLE tbl ENGINE=INNODB which will rebuild table with new MySQL version and normally will fix issues identified by mysql_upgrade.
You can use mysqlcheck -A –check-upgrade to identify tables which need to be fixed such a way.
With Oracle intentions to make Innodb default storage engine in next MySQL release I’m hopeful minor annoyances like this will be fixed. It should not be that complicated to at least map REPAIR TABLE to null ALTER TABLE which will help with most issues.
There is nice bug filed about it though it only covers documentation aspects.
Percona’s widely read Percona Data Performance blog highlights our expertise in enterprise-class software, support, consulting and managed services solutions for both MySQL® and MongoDB® across traditional and cloud-based platforms. The decades of experience represented by our consultants is found daily in numerous and relevant blog posts.
Besides specific database help, the blog also provides notices on upcoming events and webinars.
Want to get weekly updates listing the latest blog posts? Subscribe to our blog now! Submit your email address below and we’ll send you an update every Friday at 1pm ET.