On Wed, 2004-11-24 at 09:15 -0600, Jeff Smelser wrote: > On Wednesday 24 November 2004 07:32 am, Hristo Chernev wrote: > > How to upgrade from 3.23.58 to 4.1.7? Which is the easiest way with minimal > > risk and downtime? > > Yeah right.. ;) > > > Background: Heavy loaded mysql server, only one database but it is huge - > > 5GB.The database is replicated to another server.Mysql 3.23.58.Linux OS. > > > > Here is the my plan, please correct me if there is a better way or if I am > > doing unnecessary actions: > > > 1. Stop the site and mysql servers and backup database. > > 2. Upgrade mysql versions on the two machines. > > 3. Compiling apache and php with new mysql 4.1 client lib. > > 4. Recreate users and rights ( the provided script fix_privilege_table will > > not work correctly form 3.23. to 4.1. will it?). > > 5. Start main mysql server without replication. > > 6. Rename database to olddb. > > 7. Create new database named db. > > Do one of 8a or 8b: > > 8a.Dump olddb with mysqldump, then run the result file to fill the new db > > (in order to have native 4.1 database ). > > 8b.Using SQL queries (or phpmyadmin) copy all tables from olddb to new db > > (in order to have native 4.1 database ). > > 9. Assure that all is correct then delete olddb, copy database to the slave > > and start mysql servers. > > 10. Confirm replication is ok, then start the site. > > This is a good list.. My suggestion would be to do this on some sort of > back/dev machine.. php doesnt just work with 4.1 automatically (depending on > version). > > Not sure which distro u use, that could be a driving factor of problems you > may see to. > > Jeff
I am actually in the process of planning a similar upgrade for our database server. None of our databases are that big, but was wondering about what "gotcha's" I should be on the lookout for. I planned on walking through the upgrade pages from mysql.com for going from 3.23 to 4.0 and 4.0 to 4.1. I was hoping not to have to re-create the databases as the original poster mentioned, but I don't have a slave DB setup either. Will this be an issue? Greg -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
