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Re: [Linux-cluster] MySQL + RH Cluster + GFS



Mehdi Sarmadi wrote:
  Where could I find out more about Clustering MySQL using redhat
solutions/models and Pros/Cons?

Theres not much out conclusive information out there on the subject. The best place is on the mysql mailing lists, where its discussed a few times. Seems the mysql developers aren't specifically interested in GFS and the GFS developers aren't specifically interested in mysql.

More then likely you are looking to run two mysqld servers on the same filesystem. This seems to work fine for myisam table engines but innodb has file locking issues which will prevent both mysqld's from being able to manage the table concurrently.

Mysql devs aren't too interested in GFS because their NDB solves this "problem" (redundant mysqld's) without a shared filesystem. But, this locks you to the ndb storage engine which may be incompatible with some applications.

Hope this helps.

Rick Blundell


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