$ strings $(which xtrabackup) | grep 'Compressed tables use zlib' Compressed tables use zlib 1.2.7 $ strings $(which mysqld) | grep 'Compressed tables use zlib' Compressed tables use zlib 1.2.3
I indeed don't expect XtraBackup to work with different zlib versions. However I do think it should print a warning when making the backup.
$ strings $(which xtrabackup) | grep 'Compressed tables use zlib'
Compressed tables use zlib 1.2.7
$ strings $(which mysqld) | grep 'Compressed tables use zlib'
Compressed tables use zlib 1.2.3
I indeed don't expect XtraBackup to work with different zlib versions.
However I do think it should print a warning when making the backup.