一、备份用户创建
CREATE USER 'bkpuser'@'localhost' IDENTIFIED BY 'bkpuser';
GRANT RELOAD, LOCK TABLES, PROCESS, REPLICATION CLIENT ON . TO 'bkpuser'@'localhost';
FLUSH PRIVILEGES;

二、备份

-- 执行备份 （不带时间戳）
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --socket=/data/mysql/db_test/mysql.sock --parallel=8 --slave-info --no-timestamp /data/backups/full

-- 执行备份 （带时间戳）
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --socket=/data/mysql/db_test/mysql.sock --parallel=8 --slave-info /data/backups/full

-- 执行备份 （具体某个库）
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --socket=/data/mysql/db_test/mysql.sock --databases=t1 --parallel=8 --slave-info /data/backups/full

-- 执行备份 （增量备份，全备基础上进行增量备份）
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --socket=/data/mysql/db_test/mysql.sock --incremental-basedir=/data/backups/full/2018-05-02_13-42-59/ --incremental /data/backups/inc

-- 执行备份 （增量备份，增备基础上进行增量备份）
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --socket=/data/mysql/db_test/mysql.sock --incremental-basedir=/data/backups/inc/2018-05-02_13-44-24/ --incremental /data/backups/inc

三、恢复

-- 全量恢复
rm -rf /data/mysql/db_test/data/ #删除数据目录
rm -rf /data/mysql/db_test/ulog/ #删除数据目录

/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --apply-log --redo-only /data/backups/full/2018-05-02_13-42-59/
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --copy-back /data/backups/full/2018-05-02_13-42-59/

-- 修改文件夹权限
chown -R mysql:mysql /data/mysql/db_test/data
chown -R mysql:mysql /data/mysql/db_test/ulog

-- 增量恢复（全备基础上做增量恢复）
-- 其实就是将全备和增备合并在一起，然后进行恢复
rm -rf /data/mysql/db_test/data/ #删除数据目录
rm -rf /data/mysql/db_test/ulog/ #删除数据目录

/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --apply-log --redo-only /data/backups/full/2018-05-02_13-42-59/
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --apply-log --redo-only /data/backups/full/2018-05-02_13-42-59/ --incremental-dir=/data/backups/inc/2018-05-02_13-44-24
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --apply-log --redo-only /data/backups/full/2018-05-02_13-42-59/
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --copy-back /data/backups/full/2018-05-02_13-42-59/

-- 增量恢复（增备基础上做增量恢复）
-- 将全备+增备1+增备2全部放一起恢复
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --apply-log --redo-only /data/backups/full/2018-05-02_13-42-59/
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --apply-log --redo-only /data/backups/full/2018-05-02_13-42-59/ --incremental-dir=/data/backups/inc/2018-05-02_13-44-24
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --apply-log --redo-only /data/backups/full/2018-05-02_13-42-59/ --incremental-dir=/data/backups/inc/2018-05-02_13-45-45
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --apply-log --redo-only /data/backups/full/2018-05-02_13-42-59/
/usr/local/xtrabackup/bin/innobackupex --defaults-file=/data/mysql/db_test/conf/test.cnf --user=bkpuser --password=bkpuser --copy-back /data/backups/full/2018-05-02_13-42-59/

-- 修改文件夹权限
chown -R mysql:mysql /data/mysql/db_test/data
chown -R mysql:mysql /data/mysql/db_test/ulog