Use the Xtrabackup tool to back up and restore (a required tool for MySQLDBA) _ MySQL

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Xtrabackup------ Necessary tools for MySQL DBA

Note:

1) documents reference http://www.percona.com/docs/wiki/percona-xtrabackup:start

2) mysql version 5.1.50 or later.

1. introduction and installation of Xtrabackup

1. Xtrabackup is an open-source project of percona. it supports hot backup of innodb, XtraDB, and MyISAM (locks tables). It can be seen as a free alternative to InnoDB Hotbackup.

Percona Support for MySQL

Benefit	Silver (Per Server)	Gold (Unlimited)	Platinum (Unlimited)
Annual Price	$1,500/server	From $15,000.	From $30,000.
Number of Servers Covered	Per-Server	Unlimited	Unlimited
Number of Support Incidents	Unlimited	Unlimited	Unlimited
Response Time SLA	60 Minutes	30 Minutes	30 Minutes
Named Support Contact Persons	5	10	20
Email, Web, & Chat Support	650) this. width = 650; "height = 24>	650) this. width = 650; "height = 24>	650) this. width = 650; "height = 24>
Phone Support	650) this. width = 650; "height = 24>	650) this. width = 650; "height = 24>	650) this. width = 650; "height = 24>
Login Support	650) this. width = 650; "height = 24>	650) this. width = 650; "height = 24>	650) this. width = 650; "height = 24>
24 × 7 Support	650) this. width = 650; "height = 24>	650) this. width = 650; "height = 24>	650) this. width = 650; "height = 24>
Fixes For Verified Bugs		650) this. width = 650; "height = 24>	650) this. width = 650; "height = 24>
Hot Bug Fixes			650) this. width = 650; "height = 24>
Onsite System Audit		Option	650) this. width = 650; "height = 24>
Covers Old Server Versions			650) this. width = 650; "height = 24>
Covers Non-Standard Platforms			Option
Covers Custom Code			Option

Reference: http://www.percona.com/mysql-support/

First, let's take a look at how to install Xtrabackup. the simplest installation method is to use the RPM Package. However, if you want to use the source code for installation, the installation method is a bit odd, it is installed by patching the MySQL source code.

2. installation:

Wget http://www.percona.com/downloads/XtraBackup/XtraBackup-1.4/Linux/binary/i686/

Tar zxf xtrabackup-1.4.tar.gz

Cd xtrabackup-1.4

./Configure

Make

At this point, do not make install. then MySQL will be installed. the correct method is:

Cd innobase/xtrabackup/

Make

Make install

Installation reference: http://www.percona.com/docs/wiki/percona-xtrabackup:installation:from-source

3. in this way, two useful tools will be installed in the/usr/bin directory: xtrabackup and innobackupex.

1) xtrabackup can only back up InnoDB and XtraDB data tables. it supports online hot backup and can back up Innodb data tables without locking. However, this tool cannot operate Myisam engine tables.

2) innobackupex is a script encapsulation that encapsulates xtrabackup and can simultaneously process Innodb and Myisam, but a read lock is required when processing Myisam.

As described above, because the read lock is required for Myisam operations, this will block write operations for online services, and Innodb does not have such restrictions, so the proportion of Innodb table types in the database is greater, it is more advantageous. In actual application, the innobackupex method is generally used directly. There are three main operation methods, as described in the manual:

Usage:

Innobackup [-- sleep = MS] [-- compress [= LEVEL] [-- include = REGEXP] [-- user = NAME]

[-- Password = WORD] [-- port = PORT] [-- socket = SOCKET] [-- no-timestamp]

[-- Ibbackup = IBBACKUP-BINARY] [-- slave-info] [-- stream = tar]

[-- Defaults-file = MY. CNF]

[-- Databases = LIST] [-- remote-host = HOSTNAME] BACKUP-ROOT-DIR

Innobackup -- apply-log [-- use-memory = MB] [-- uncompress] [-- defaults-file = MY. CNF]

[-- Ibbackup = IBBACKUP-BINARY] BACKUP-DIR

Innobackup -- copy-back [-- defaults-file = MY. CNF] BACKUP-DIR

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The first command line is to hot back up the mysql database.

The command with the -- apply-log option is to start the mysql service on a backup.

Commands with the -- copy-back option copy data, indexes, and logs from the backup directory to the specified initial location in the my. cnf file.

Xtrabackup can also be used to moving InnoDB tables between servers. For more information, see the official documentation and examples.

Reference link:

1. Documents: http://www.percona.com/docs/wiki/percona-xtrabackup:xtrabackup_manual

2. Xtrabackup online backup for InnoDB/XTraDB (pdf ):

Http://www.percona.com/ppc2009/PPC2009_xtrabackup.pdf

II. innobackupex and xtrabackup backup details

Note: innobackupex determines the data location of MySQL based on/et/my. cnf.

1. normal backup:

Innobackupex [-- defaults-file =/etc/my. cnf] -- user = root [-- host = 192.168.1.52] [-- password = xxx] [-- port = 3306]/data/back_data/2>/data/back_data/1.log

The backup directory is/data/back_data/. here 2>/data/back_data/1.logis used to redirect the output information in the backup process to 1.log.

Innobackupex-1.5.1