MySQL Bugs: #118323: Extend MySQL native cloning to work cross-architecture where possible

Bug #118323	Extend MySQL native cloning to work cross-architecture where possible
Submitted:	1 Jun 13:26	Modified:	2 Jun 5:05
Reporter:	Simon Mudd (OCA)	Email Updates:
Status:	Verified	Impact on me:	None
Category:	MySQL Server: Clone Plugin	Severity:	S4 (Feature request)
Version:	8.0+	OS:	Any
Assigned to:		CPU Architecture:	Any

Description:
Related to bug#116513

Please ensure that native cloning can work cross architecture where this is possible.

There may be some limitations (word sizing etc?) but I've talked to a few people and there appears to be no logical reason to not allow this, at least in some situations.

A situation where I saw this did not work: x86_64 on-prem to aarch64 OCI.

mysql> clone instance from 'some_user'@'1.2.3.4':3306 identified by 'somepassword' ;
ERROR 3866 (HY000): Clone Donor platform: x86_64 is different from Recipient platform: aarch64.

Copying by other means is possible but native cloning requires much less effort and is a single command run on the destination/target server.  If the limitation is artificial then please remove it.

How to repeat:
See the bug report I provide in bug#116513

Suggested fix:
Ensure that native cloning works cross architecture where this is possible, and update documentation appropriately.

Hello Simon,

Thank you for the feature request!

regards,
Umesh