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Re: [MySQL 5.0] Errors during migration from MyISAM to InnoDB
Posted by: Rick James
Date: September 10, 2015 06:32PM

Yes, the disk footprint for InnoDB tables is 2x-3x the footprint for MyISAM.

There are other things you should be aware of when converting:
http://mysql.rjweb.org/doc.php/myisam2innodb
http://mysql.rjweb.org/doc.php/memory

It is sad that you are still on 5.0. It will be painful moving to 5.6 since that is 3 major steps ahead.

Also, read
http://dev.mysql.com/doc/refman/5.0/en/innodb-multiple-tablespaces.html
and consider whether to use that feature for the largest few tables. However, it may be 'too late' because ibdata1 may now be so bloated that you are hurting for disk space.

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Re: [MySQL 5.0] Errors during migration from MyISAM to InnoDB
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