os: centos 7.4.1708
db: mysql 8.0.20
全量備份
# xtrabackup --backup --datadir=/var/lib/mysql/ --target-dir=/backup/backupset/20180327_base
增量備份
# xtrabackup --backup --datadir=/var/lib/mysql/ --target-dir=/backup/backupset/20180327_inc1 --incremental-basedir=/backup/backupset/20180327_base
# xtrabackup --backup --datadir=/var/lib/mysql/ --target-dir=/backup/backupset/20180327_inc2 --incremental-basedir=/backup/backupset/20180327_inc1
壓縮備份
# xtrabackup --backup --compress --datadir=/var/lib/mysql/ --target-dir=/backup/backupset/20180327_base
# xtrabackup --backup --compress --compress-threads=4 --datadir=/var/lib/mysql/ --target-dir=/backup/backupset/20180327_base
壓縮備份prepare 之前需要先解壓
# xtrabackup --decompress --target-dir=/backup/backupset/20180327_base
# xtrabackup --parallel=4 --decompress --target-dir=/backup/backupset/20180327_base