One other note about this. From the Falcon information on the MySQL website:

“True Multi Version Concurrency Control (MVCC) enables records and tables to be updated without the overhead associated with row-level locking mechanisms. The MVCC implementation virtually eliminates the need to lock tables or rows during the update process.”

Honestly, will be interesting to see if this really works!!

Kevin Lewis, the Falcon team lead said this in his talk “Falcon is not Innodb” at the MySQL Conference.

Unfortunately, at this point, I don’t know enough to be able to give you a reasonable explanation. However, here is the slides of the talk I mentioned:

en.oreilly.com/mysql2008/public/asset/attachment/2155

Keith

It is very good. Thank you.
I have a question. I heard that Innodb use “Mixed MVCC”, while Falcon use “Pure MVCC”. So what is “Mixed” meanings? Could you give more details? :-)

Thx, Xuekun