Xtrabackup backup of MySQL 8.0

 xtrabackup backup statement:   

fname=`date +%F_%H-%M-%S`
mkdir -p /mnt/dbbak/db_$fname
xtrabackup --defaults-file=/etc/my.cnf -uhyb  -phd   -h/var/lib/mysql  -S/var/lib/mysql/mysql.sock -Hlocalhost  --port=3306 --backup  --parallel=4 --target-dir=/mnt/dbbak/db_$fname
find /mnt/dbbak/ -name "db_*" -type f -mtime +7 -exec rm -rf {}  \; > /dev/null 2>&1

 

reduction:

- rolling log 
xtrabackup --prepare --target- the dir = / opt / db_2019- 10 -25_01- 54 is - 08 /