Percona5.7 TokuBackup支持TokuDB熱備份
阿新 • • 發佈：2018-06-20
safe 異步 tokudb tar info init check .so oot Percona5.7 TokuBackup支持TokuDB熱備份
一、安裝tokudb引擎
執行以下腳本，自動安裝tokudb。
# bin/ps-admin --defaults-file=/etc/my3308.cnf --enable -uroot -p123456 -S /tmp/mysql3308.sock
Checking SELinux status...
INFO: SELinux is disabled.
Checking if TokuDB plugin is available for installation ...
INFO: ha_tokudb.so library for TokuDB found at /usr/local/Percona/lib/mysql/plugin/ha_tokudb.so.
Checking location of jemalloc library ...
INFO: jemalloc library needed for TokuDB found at /usr/local/Percona/lib/mysql/libjemalloc.so.1
Checking if Percona Server is running with jemalloc enabled...
INFO: Percona Server is running with jemalloc enabled.
Checking transparent huge pages status on the system...
INFO: Transparent huge pages are currently disabled on the system.
Checking if thp-setting=never option is already set in config file...
INFO: Option thp-setting=never is not set in the config file.
(needed only if THP is not disabled permanently on the system)
Checking TokuDB engine plugin status...
INFO: TokuDB engine plugin is installed.
Adding thp-setting=never option into /etc/my3308.cnf
INFO: Successfully added thp-setting=never option into /etc/my3308.cnf二、增加mysqld_safe啟動參數preload-hotbackup至my.cnf配置文件裏
# bin/ps_tokudb_admin --defaults-file=/etc/my3308.cnf --enable-backup -uroot -p123456 -S /tmp/mysql3308.sock WARNING: This script is deprecated and will be removed in 8.0. You can use ps-admin script which has more functionality. Checking SELinux status... INFO: SELinux is disabled. Checking if Percona Server is running with jemalloc enabled... INFO: Percona Server is running with jemalloc enabled. Checking transparent huge pages status on the system... INFO: Transparent huge pages are currently disabled on the system. Checking if thp-setting=never option is already set in config file... INFO: Option thp-setting=never is set in the config file. Checking if preload-hotbackup option is already set in config file... INFO: Option preload-hotbackup is not set in the config file. Checking TokuDB engine plugin status... INFO: TokuDB engine plugin is installed. Checking TokuBackup plugin status... INFO: TokuBackup plugin is not installed. Adding preload-hotbackup option into /etc/my3308.cnf INFO: Successfully added preload-hotbackup option into /etc/my3308.cnf PLEASE RESTART MYSQL SERVICE AND RUN THIS SCRIPT AGAIN TO FINISH INSTALLATION!
三、重啟mysqld服務
/etc/init.d/mysql restart
四、安裝熱備份TokuBackup plugin工具插件
# bin/ps_tokudb_admin --defaults-file=/etc/my3308.cnf --enable-backup -uroot -p123456 -S /tmp/mysql3308.sock WARNING: This script is deprecated and will be removed in 8.0. You can use ps-admin script which has more functionality. Checking SELinux status... INFO: SELinux is disabled. Checking if Percona Server is running with jemalloc enabled... INFO: Percona Server is running with jemalloc enabled. Checking transparent huge pages status on the system... INFO: Transparent huge pages are currently disabled on the system. Checking if thp-setting=never option is already set in config file... INFO: Option thp-setting=never is set in the config file. Checking if preload-hotbackup option is already set in config file... INFO: Option preload-hotbackup is set in the config file. Checking TokuDB engine plugin status... INFO: TokuDB engine plugin is installed. Checking TokuBackup plugin status... INFO: TokuBackup plugin is not installed. Checking if Percona Server is running with libHotBackup.so preloaded... INFO: Percona Server is running with libHotBackup.so preloaded. Installing TokuBackup plugin... INFO: Successfully installed TokuBackup plugin.
五、開始全量熱備份
執行下面的命令即可開啟熱備份：
MySQL [(none)]> set tokudb_backup_dir='/data/tokudb_bak/'; Query OK, 0 rows affected (0.408 sec)
註：創建一個空目錄/data/tokudb_bak，並將其屬性改成mysql
註意事項：
1、關閉異步IO，否則備份失敗。
innodb_use_native_aio = 0
2、不支持增量備份
六、恢復
直接拷貝備份文件至你的數據目錄下，啟動mysqld進程即可。
Percona5.7 TokuBackup支持TokuDB熱備份