Affects Version/s: 8.0-3-rc1
Fix Version/s: 8.0.4
I installed the above version of percona backup.
The backup runs fine now against 8.0.12 and against 8.0.13. (I upgraded the 8.0.12 server to 8.0.13). [ rpm -q shows mysql-community-server-8.0.13-1.el7.x86_64 ]
I then tried to run the prepare phase using: **xtrabackup --prepare --target-dir=/backup/dir and while it started ok it eventually failed.
I'll upload the error message for reference but this showed up quite clearly for a table that I guess may have been configured while running as 8.0.13:
InnoDB: Allocated tablespace ID 929 for mydb/someTable, old maximum was 0
xtrabackup: Unknown error 3611
and after several error messages there's a stack trace.
I guess this is because the version this version of xtrabackup is based upon is 8.0.12 and I was using a newer (and I guess incompatible) binary.
I'm not yet using any 8.0 specific functionality as the upstream master runs 5.7.