What's the fastest way to export/import a mysql database using innodb tables?
I have a production database which I periodically need to download to my development machine to debug customer issues. The way we currently do this is to download our regular database backups, which are generated using "mysql -B dbname" and then gzipped. We then import them using "gunzip -c backup.gz | mysql -u root".
From what I can tell from reading "mysqldump --help", mysqldump runs wtih --opt by default, which looks like it turns on a bunch of the things that I can think of that would make imports faster, such as turning off indexes and importing tables as one massive import statement.
Are there better ways to do this, or further optimizations we should be doing?
Note: I mostly want to optimize the time it takes to load the database onto my development machine (a relatively recent macbook pro, with lots of ram). Backup time and network transfer time currently aren't big issues.
Update:
To answer some questions posed in the answers:
The production database schema changes up to a couple times a week. We're running rails, so it's relatively easy to run the migrate scripts on stale production data.
We need to put production data into a development environment potentially on a daily or hourly basis. This entirely depends on what a developer is working on. We often have specific customer issues that are the result of some data spread across a number of tables in the db, which needs to be debugged in a development environment.
I honestly don't know how long mysqldump takes. Less than 2 hours, since we currently run it every 2 hours. However, that's not what we're trying to optimize, we want to optimize the import onto the developer workstation.
We don't need the full production database, but it's not totally trivial to separate what we do and don't need (there are a lot of tables with foreign key relationships). This is probably where we'll have to go eventually, but we'd like to avoid it for a bit longer if we can.