List:General Discussion« Previous MessageNext Message »
From:Reindl Harald Date:November 1 2012 3:41pm
Subject:Re: Mysql backup for large databases
View as plain text  

Am 01.11.2012 16:36, schrieb Singer Wang:
> On Thu, Nov 1, 2012 at 11:34 AM, Rick James <rjames@stripped
> <mailto:rjames@stripped>> wrote:
> 
>     Full backup:
>     * Xtrabackup (Backup: slight impact on source; more if you have MyISAM (as
> mentioned))
>     * Slave (Backup: zero impact on Master -- once replication is set up)
>     * LVM -- a minute of server down; see below
> 
> Why do you need downtime?

because mysqld has many buffers in memory and there
is no atomic "flush buffers in daemon and freeze backend FS"

short ago there was a guy on this list which had to realize
this the hard way with a corrupt slave taken from a snapshot

that's why i would ALWAYS do master/slave what means ONE time
down (rsync; stop master; rsync; start master) for a small
timewindow and after that you can stop the slave, take a
100% consistent backup of it's whole datadir and start
the slave again which will do all transactions from the
binarylog happened in the meantime


Attachment: [application/pgp-signature] OpenPGP digital signature signature.asc
Thread
Mysql backup for large databasesMachiel Richards - Gmail1 Nov
  • Re: Mysql backup for large databasesDimitre Radoulov1 Nov
  • Re: Mysql backup for large databasesReindl Harald1 Nov
    • RE: Mysql backup for large databasesRick James1 Nov
      • Re: Mysql backup for large databasesSinger Wang1 Nov
        • Re: Mysql backup for large databasesReindl Harald1 Nov
          • Re: Mysql backup for large databasesSinger Wang1 Nov
            • Re: Mysql backup for large databasesReindl Harald1 Nov
              • Re: Mysql backup for large databasesmachiel.richards1 Nov
  • Re: Mysql backup for large databasesKaren Abgarian1 Nov
    • Re: Mysql backup for large databasesManuel Arostegui2 Nov
  • Re: Mysql backup for large databasesKaren Abgarian2 Nov
Re: Mysql backup for large databasesReindl Harald1 Nov
RE: Mysql backup for large databasesRick James1 Nov