Migrate MySQL to MariaDB in Ubuntu 12.10，migratemariadb
If you have MySQL installed on an Ubuntu (12.10) server and are looking to migrate to MariaDB , here are the steps to migrate over to MariaDB 10.
MariaDB is a drop-in replacement for MySQL - you don’t need to export then import your databases - it just works
Remove MySQL
sudo apt-get install software-properties-common
sudo apt-get remove mysql-server
sudo apt-get remove mysql-server-5.5
sudo apt-get remove mysql-server-core-5.5
Add MariaDB repository
mysql Ver 15.1 Distrib 10.0.3-MariaDB, for debian-linux-gnu (i686) using readline 5.1
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xcbcb082a1bb943db
sudo add-apt-repository 'deb http://mirror.aarnet.edu.au/pub/MariaDB/repo/10.0/ubuntu quantal main'
sudo apt-get update
sudo apt-get install mariadb-server
Check that its worked
mysql --version
If the migration was a success it’ll says the distribution of mysql is MariaDB - similar to below
mysql Ver 15.1 Distrib 10.0.3-MariaDB, for debian-linux-gnu (i686) using readline 5.1
参考 https://downloads.mariadb.org/mariadb/repositories/#mirror=qiming&distro=Ubuntu&distro_release=raring&version=10.0
服务器测试结果，
用MYSQL时CPU使用情况
top | grep mysql写道 11644 mysql 20 0 16.5g 9.2g 7844 S 8.6 29.2 5207:00 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 66.5 29.2 5207:02 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 9.6 29.2 5207:02 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 6.0 29.2 5207:02 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 6.0 29.2 5207:03 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 7.6 29.2 5207:03 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.7 29.2 5207:03 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 22.3 29.2 5207:03 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 7.3 29.2 5207:03 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 4.7 29.2 5207:04 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 7.3 29.2 5207:04 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 10.0 29.2 5207:04 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.0 29.2 5207:04 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 6.7 29.2 5207:04 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.3 29.2 5207:05 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 101.5 29.2 5207:08 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 24.6 29.2 5207:09 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 43.3 29.2 5207:10 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 35.0 29.2 5207:11 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 23.0 29.2 5207:12 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 16.3 29.2 5207:12 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 13.6 29.2 5207:12 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 10.6 29.2 5207:13 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 13.0 29.2 5207:13 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 6.3 29.2 5207:13 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 6.7 29.2 5207:14 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.0 29.2 5207:14 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.6 29.2 5207:14 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 14.0 29.2 5207:14 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 7.3 29.2 5207:15 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 7.3 29.2 5207:15 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 6.7 29.2 5207:15 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 12.0 29.2 5207:15 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 4.7 29.2 5207:16 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 3.7 29.2 5207:16 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 13.3 29.2 5207:16 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 10.3 29.2 5207:16 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 9.6 29.2 5207:17 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 9.3 29.2 5207:17 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 4.6 29.2 5207:17 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.6 29.2 5207:17 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 7.6 29.2 5207:18 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.3 29.2 5207:18 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 5.0 29.2 5207:18 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 5.7 29.2 5207:18 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 11.3 29.2 5207:19 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.6 29.2 5207:19 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 10.0 29.2 5207:19 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 10.6 29.2 5207:19 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.7 29.2 5207:20 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 5.7 29.2 5207:20 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 11.3 29.2 5207:20 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 9.3 29.2 5207:20 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 10.3 29.2 5207:21 mysqld
11644 mysql 20 0 16.5g 9.2g 7844 S 8.0 29.2 5207:21 mysqld
使用MariaDB之后
写道 4159 mysql 20 0 13.2g 1.3g 10m S 7.0 4.1 0:26.66 mysqld4159 mysql 20 0 13.2g 1.3g 10m S 6.3 4.1 0:26.85 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 7.6 4.1 0:27.08 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 6.0 4.1 0:27.26 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 3.3 4.2 0:27.36 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 7.3 4.2 0:27.58 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 5.3 4.2 0:27.74 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 7.3 4.2 0:27.96 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 7.0 4.2 0:28.17 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 4.3 4.2 0:28.30 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 7.3 4.2 0:28.52 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 4.7 4.2 0:28.66 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 5.3 4.2 0:28.82 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 6.0 4.2 0:29.00 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 4.7 4.2 0:29.14 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 5.3 4.2 0:29.30 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 6.7 4.2 0:29.50 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 8.3 4.2 0:29.75 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 5.0 4.2 0:29.90 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 4.3 4.2 0:30.03 mysqld
4159 mysql 20 0 13.2g 1.3g 10m S 7.3 4.2 0:30.25 mysqld
可见用MariaDB的CPU使用率很平稳， 使用率也低了一些
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