Folks:
I'm attempting to develop a parallel MySql on my company's
system (see http://www.timesn.com )
my initial goal is to enable inter-query parallelism onto a shared
file system).
The (simple) idea is to capture sequences of queries and ship each query in
a rond-robin (or load-balancing) fashion to the available processors.
The approach I'm taking is to run one copy of the server
per processor & extend the file locks such that they become
global locks to prevent multiple processors from stepping on each other.
However, I do not want to introduce excessive serialization (e.g, making
every call to pthread_mutex_.. into a global lock.
Can folks more familiar with the source tree than I am (I got the
tree from bitkeeper) point me to places where I should lock file
access ? (I've been chasing calls to my_open to see where I would
place locks aroung file open / file close cals). Of course I'm open
(no pun intended...) to better suggestions
cheers
Mauricio
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
