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I upgraded from MySQL 5.1 to MariaDB 5.3 and then to 5.5 on a Windows machine. Everything works well, except I can't enable the federated storage engine. With MySQL 5.1 and MariaDB 5.3, I just added "federated" under [mysqld]. If I try to start MariaDB 5.5 with the same "federated" option, I get an error:

C:\Program Files\MariaDB 5.5\bin\mysqld.exe: unknown option '--federated'

How can I enable the federated storage engine?

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Did you have a look at ? – KookieMonster Oct 16 '13 at 12:16
I did, but didn't see any relevant information there... – Amit E Oct 16 '13 at 13:38

FederatedX is enabled by default in MariaDB 5.5

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show engines doesn't list it, and I get an error when trying to created a federated table "Unknown storage engine". – Amit E Oct 22 '13 at 12:15
up vote 0 down vote accepted

Finally found the answer in a StackOverflow question. I missed one command that I didn't see documented anywhere:

install plugin federated soname ''

Just had to change to ha_federatedx and run in a client and it works!

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