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Re: OT backup mysql databases




----- Original Message ----- From: "Edwin Dicker" <fedora dicker nl>
To: "For users of Fedora Core releases" <fedora-list redhat com>
Sent: Wednesday, 27 October, 2004 23:16
Subject: Re: OT backup mysql databases




----- Original Message ----- From: "Christopher Hicks" <chicks chicks net>
To: "RedHat's Fedora List" <fedora-list redhat com>
Sent: Wednesday, 27 October, 2004 23:07
Subject: Re: OT backup mysql databases



On 27 Oct 2004, Edwin Dicker shaped electrons to convey:
I have a few small mysql databases on my system. I backup my whole system every week with a cpio backup to tape. Is a cpio backup good enough for mysql databases? If I restore the /var/lib/mysql directory structure, will i have full access again ? Do I need to stop the mysqld service before creating the backup ?

Running mysqldump on each tablespace (including the mysql tablespace) would be much cleaner and not require any shutdown of mysql. The backups of the /var/lib/mysql directory may or may not be consistant depending on whether there's any update activity at that point. (And mysql can delay updates so there may be update activity after there's noone connected for a short time.)


--
</chris>

According to your tips I've decided to use mysqldump through the logrotate function. ( read a tip on the mysql developer forum )
This way it'll create a backup every night and keeps it 14 days.
This is how I did it:


[root storm mysql]# cd /etc/logrotate.d
[root storm logrotate.d]# cat databases
/var/backups/mysql/alldbs {
rotate 14
daily
compress
missingok
sharedscripts
postrotate
mysqldump --opt --all-databases -u root --password="password" > /var/backups/mysql/alldbs
endscript
}


My databases are not growing to many MBytes so there's no problem with diskspace :)

thanks for all your tips.
Edwin


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