Comments on: 10 things you need to know about backup solutions for MySQL

By: Baron Schwartz

Baron Schwartz — Fri, 18 Dec 2009 12:54:37 +0000

Start here: http://catb.org/~esr/faqs/smart-questions.html

By: soni

soni — Fri, 18 Dec 2009 09:12:10 +0000

i have a problem and its master database cannot produce backup. this is particular for flex language explorer. how do i go about it? thank you

By: soni

soni — Fri, 18 Dec 2009 09:11:10 +0000

i have a problem and its master database cannot produce backup. how do i go about it? thank you

By: Maurizio Di Ianni

Maurizio Di Ianni — Tue, 17 Mar 2009 07:36:11 +0000

A great thing would be that you can transform a mysqldump file with extended inserts to a load data outfile format file. If there is someone who knows something about it… I tell you this taking care about the 10 reasons explained before and thinking on a server with huge databases, with millions of rows per table (100GB).

By: Baron Schwartz

Baron Schwartz — Tue, 10 Mar 2009 15:25:04 +0000

/me unsubscribes from spammer list that aforesaid backup provider subscribed him to after downloading the whitepaper.

By: rgmarcha

rgmarcha — Mon, 09 Mar 2009 16:57:06 +0000

Baron, I’m a customer of R1Soft (www.r1soft.com), and so far my backups are good enough that I use them regularly to spawn new slaves.

Their backup solution works tracking modified blocks in a filesystem (I have used only ext3) with a kernel driver. So, after a FLUSH TABLES WITH READ LOCK, they take a snapshot of the state of the blocks in the filesystem, and those are the blocks’ versions put into the backup. So, it seems it should be equivalent to a LVM snapshot.

The speed of the restore, though fast, is not optimal, but I think it’s because the CPU is the bottleneck decompressing the backup data. I haven’t tested a mysql restore from a non-compressed backup to compare.

By: Eric Brunson

Eric Brunson — Mon, 09 Mar 2009 16:40:11 +0000

I’m working on a backup strategy for my company, so this set of questions is both timely and appreciated.

By: Baron Schwartz

Baron Schwartz — Thu, 05 Mar 2009 15:18:23 +0000

Great point. But 10 is such a nice number for linkbait headlines! Heh.

By: Jens-Petter Salvesen

Jens-Petter Salvesen — Thu, 05 Mar 2009 10:17:13 +0000

There is a big item that’s missing: Recovery time. It’s nearly useless to have a consistent backup if it takes two days to restore and you can only afford two hours of downtime..

Otherwise a good, useful article as always!

By: Baron Schwartz

Baron Schwartz — Thu, 05 Mar 2009 00:35:45 +0000

Ronald, I haven’t evaluated the backup functionality in MySQL 6 well enough to have an informed opinion about it, sorry