Re: Upgrading form mysql 5.0.90 to 5.5 or 5.6
2013/2/15 Reindl Harald h.rei...@thelounge.net our database is 400 GB, mysqldump is 600MB was not a typo and you honestly believed that you can import this dump to somewhat? WTF - as admin you should be able to see if the things in front of you are theoretically possible before your start any action and 1:400 is impossible, specially because mysql-dumps are ALWAYS WAY LARGER then the databasses because they contain sql-statements and not only data That's not completely true. If you have a poor maintained database or just tables with lot of writes and deletes and you don't periodically optimize it - you can end up with lot of blank spaces in your tables which will use _a lot_ of space. If you do a du or whatever to measure your database size...you can get really confused. mysqldump obviously doesn't backup blank spaces and once you get rid of them, your database will use much less space. I have seen this scenario many times and I have seen tables using like 30GB disk space and after an optimize their reported disk size would be just 5-10GB. Manuel.
Re: Upgrading form mysql 5.0.90 to 5.5 or 5.6
Am 16.02.2013 09:42, schrieb Manuel Arostegui: 2013/2/15 Reindl Harald h.rei...@thelounge.net mailto:h.rei...@thelounge.net our database is 400 GB, mysqldump is 600MB was not a typo and you honestly believed that you can import this dump to somewhat? WTF - as admin you should be able to see if the things in front of you are theoretically possible before your start any action and 1:400 is impossible, specially because mysql-dumps are ALWAYS WAY LARGER then the databasses because they contain sql-statements and not only data That's not completely true. If you have a poor maintained database or just tables with lot of writes and deletes and you don't periodically optimize it - you can end up with lot of blank spaces in your tables which will use _a lot_ of space. If you do a du or whatever to measure your database size...you can get really confused. mysqldump obviously doesn't backup blank spaces and once you get rid of them, your database will use much less space. ok, normally i expect there is a admin and doing his job especially for large datasets signature.asc Description: OpenPGP digital signature
