This document compares features of different MySQL storage engines including MyISAM, Memory, InnoDB, and NDB. It discusses their storage limits, support for foreign keys and transactions, locking granularity, and provides links for setting up MySQL Cluster and high availability configurations.

1. MySQL Cluster jslee 2011/11/1

2. HA SQL Node Data node SQL Node Data node Data node Data node Manager node inter connect Clinet

3. HA SQL Node Data node SQL Node Data node Data node Data node Manager node inter connect Clinet

4. Storage limits MyISAM 256TB Memory RAM InnoDB 64TB NDB 384EB (1EB = 1,000,000 TB) http://dev.mysql.com/doc/refman/5.1/en/storage-engines.html

5. Foreign key support MyISAM NO Memory NO InnoDB YES NDB NO http://dev.mysql.com/doc/refman/5.1/en/storage-engines.html

6. Transactions MyISAM NO Memory NO InnoDB YES NDB YES http://dev.mysql.com/doc/refman/5.1/en/storage-engines.html

7. Locking granularity MyISAM Table Memory Table InnoDB Row NDB Row http://dev.mysql.com/doc/refman/5.1/en/storage-engines.html

8. setup cluster setup http://blog.jslee.name/index.php/2011/10/11/openstack-running-mysql-cluster/ HA setup http://blog.jslee.name/index.php/2011/10/14/use-haproxy-on-mysql-cluster/

9. Q & A