Hello
I have to upgrade many mysql databases from mysql 4 and 4.1 to 5.4 with a large size 2.7 TB All tables use the MyISAM engine. I have to make that update on live system with minimal down time possible. The official method takes too much time. But I’ve read that we can use ‘*dump and reload’* to upgrade directly to 5.1, will it work with 5.4? Also the tables contain many charset? Will they be altered? It's first time that I do that. Are there any better solution and any precaution to take? thanks for your help. monem
