How to convert InnoDB to MyISAM

Although at times faster, you will find InnoDB a very large headache when it comes to table corruption and may want to convert to MyISAM. First backup your databases. Do note that some databases like WordPress may require innoDB. Be sure to backup your databases before hand. Once you have performed this, the following commands may be useful in converting InnoDB to MyISAM:


mysql -e "SELECT concat('ALTER TABLE ', TABLE_NAME,' ENGINE=MYISAM;') FROM Information_schema.TABLES WHERE TABLE_SCHEMA = 'db_name' AND ENGINE = 'InnoDB' AND TABLE_TYPE = 'BASE TABLE'"

/etc/init.d/mysql stop
mkdir -p /root/innodb.bak
mv /var/lib/mysql/ib* /root/innodb.bak/
/etc/init.d/mysql start


To restore use the following:

 


cp /root/innodb.bak/* /var/lib/mysql
echo innodb_force_recovery=4 >> /etc/my.cnf
service mysql restart

 


Share this page:


Was this article useful? Have any suggestions or improvements to the information?

Also Read

Permission denied: /home/username/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable

When checking your error log you find the error 508 or 403 forbidden error in your browser and...

Nginx redirecting folder to another host or server

From time to time you may want to proxy out a path to another server or location. To perform a...

Reset cPanel Max Defers for an Account

While viewing exim_mainlog and seeing the following: enforce_mail_permissions: Domain...

Remount /tmp with exec permission

There are times where you may need to have exec permission available for the /tmp folder. This...

Repairing and Optimizing all MySQL and MariaDB Databases on the Server

From time to time you will find repairing and optimizing your databases are necessary. From a...