Checking and repairing a table is faster using myisamchk when the mysqld process is down. This fact is due to more of the resource of a system is dedicated to myisamchk and the system is not trying to process locked queries, this is the main motivation (for me) to have a db down to do a repair. Now wouldn't it be cool to have a binary much like myisamchk to alter tables when a db is off line? To force the alter to move faster by allocating more resources to it. //currently I simulate this behavior by shutting down the mysql server and bring it back up on another port with //myisam_sort_buffer_size=96M.
Is there a mysql tool that can do this? If not could someone direct me to the various mysql C++ source files that controls the behavior of ALTER TABLE <TABLENAME> modify. I'd like to work my C++ skills and contribute to mysql by building such a tool if one doesn't already exist. - Dathan Vance Pattishall - Sr. Programmer and mySQL DBA for FriendFinder Inc. - http://friendfinder.com/go/p40688
