# Converting from TokuDB ( Mysql 5.5.30 ) to Percona Server ( 5.6 )

**URL:** <https://forums.percona.com/t/converting-from-tokudb-mysql-5-5-30-to-percona-server-5-6/2851>\
**Category:** Other MySQL® Questions\
**Created:** [July 30, 2013, 11:30am UTC](https://forums.percona.com/t/converting-from-tokudb-mysql-5-5-30-to-percona-server-5-6/2851 "2013-07-30T11:30:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![fernandomm](https://avatars.discourse-cdn.com/v4/letter/f/e0b2c6/32.png) [@fernandomm](https://forums.percona.com/u/fernandomm)\
**Post date:** [July 30, 2013, 11:30am UTC](https://forums.percona.com/t/converting-from-tokudb-mysql-5-5-30-to-percona-server-5-6/2851/1 "2013-07-30T11:30:08Z")

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I’m currently using TokuDB. Unfortunately we’re having some big issues with it including data loss/corruption in our production server.

I’m wondering what is the correct ( and fastest ) way to move from TokuDB to Percona. My first thought is:

1. Change all tables from TokuDB to InnoDB.
2. Stop TokuDB
3. Start Percona with a similar Mysql version ( 5.5.30 )
4. Check if everything is OK
5. Upgrade Percona to 5.6

Is this the fastest way?

While doing the initial tests on a development server the first step takes a long time. Currently our database uses ~500GB.

Thanks for any tips.

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**Author:** ![przemek](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/przemek/32/3_2.png) [@przemek](https://forums.percona.com/u/przemek)\
**Post date:** [July 31, 2013, 5:50am UTC](https://forums.percona.com/t/converting-from-tokudb-mysql-5-5-30-to-percona-server-5-6/2851/2 "2013-07-31T05:50:20Z")

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The plan looks good to me. In order to make alter faster I would try with pt-online-schema-change - there is a chance it would be faster.

However, I am curious what exact problems did you encounter with TokuDB? Did you file bug reports about them?