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

Account's error_log produces flood of missing modules

 Account's error_log produces flood of missing modules. Ex:   From error_log:     [23-Apr-2018...

yum-utils not installed or found on Centos5 64-bit

When yum-utils is not installed or found on Centos5 64-bit the following commands may be used:...

error: db3 error(-) from dbenv->failchk: DB_RUNRECOVERY: Fatal error, run database recovery

error: db3 error(-) from dbenv->failchk: DB_RUNRECOVERY: Fatal error, run database recovery...

cPanel Account - PHP Startup: Unable to load dynamic library

PHP Warning:  PHP Startup: Unable to load dynamic library './xsl.so' - ./xsl.so: cannot open...

cPanel Max Defers Occurring for an Account

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