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Are binlogs required for InnoDB Recovery? [message #3621]

Fri, 10 October 2008 11:51

haaseg
Messages: 8
Registered: November 2007
Location: Maryland

Junior Member

I was under the impression that the binlogs were required for InnoDB recovery, but in testing, I have successfully recovered on a different server using an lvm snapshot without them (bin-logs are on a separate lv).

The only thing I can think of is that there are no running transactions due to FLUSH TABLES WITH READ LOCK so no rollback has to occur during recovery. Either that or I've just gotten crazy luck 3 times in a row now.

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Re: Are binlogs required for InnoDB Recovery? [message #3654 is a reply to message #3621 ]

Mon, 27 October 2008 01:21

debug
Messages: 128
Registered: March 2008

Senior Member

Binlogs can help to recover database to latest version.
If you restore from archive done week ago - you will get an outdated database. But if then you execute binlogs which were written during this week - you will get up-to-date database.

Mikhail Solovyev, MySQL Performance Expert
MySQL Performance Blog
MySQL Consulting

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