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

 

  • 118 Users Found This Useful

Was this answer helpful?

Related Articles

SpamAssassin Command Line Bayesian Learn Command cPanel

Once it is enabled, it is necessary to train spamassassin to learn what is junk mail and what is...

E Sysup: Needed system RPMs were not installed: yum-utils

When encountering the following:E Sysup: Needed system RPMs were not installed: yum-utils*****...

Manually Clear from Console / Command Line cPanel Exim Mail Queue

To clear the cPanel exim mail queue quickly from a command line / shell use the following...

central_filter defer (-17): error in filter file: unknown filtering command r_subject: near line 22 of filter file

The error "central_filter defer (-17): error in filter file: unknown filtering command r_subject:...

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...