MySQL 8.0 Release Notes
MySQL 8.0 Source Code Documentation
When data is cloned, the following directories and files are created for internal use. They should not be modified.
#clone
: Contains internal clone files used by the cloning operation. Created in the directory that data is cloned to.#ib_archive
: Contains internally archived log files, archived on the donor during the cloning operation.*.#clone
files: Temporary data files created on the recipient while the existing data directory is replaced by a remote cloning operation.