Hi, Marcelo_Altman
Thanks for your reply on time,in fact I did’t run --prepare command on a network mount point with Xtrabackup,i tried run --prepare command with Xtrabackup on the local disk many times, and the same error occurred at every time.
I upgrade oracle mysql from 5.6.28 to 8.0.24 just server hours ago and using percona-xtrabackup-8.0.25-17 to backup mysql 8.0.24’s data and run --prepare command, i did’t find the same error,Xtrabackup works normal. the error I experienced is very easy to repeat,maybe it’s a bug of mysql8.0.23?,I look forward to your reply.