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

FSCK Options and Maintenance

Provided below are some useful commands pertaining to FSCK. Update commands to your environment /...

ModSecurity: collection_store: Failed to access DBM file "/var/cpanel/secdatadir/ip": Permission denied

The error Failed to access DBM file /var/cpanel/secdatadir/ip: Permission denied can occur on...

Killing cPanel Backups via Command Line / Shell

From time to time you may find the cPanel backup system taking longer and affecting production...

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

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

Failed to lock proc mutex: Permission denied

The error : Failed to lock proc mutex: Permission denied can occur when using mod_ruid2 with...