Bug #93050 'mysqladmin shutdown' does not shutdown 5.6 servers
Submitted: 1 Nov 2018 23:31 Modified: 2 Nov 2018 0:19
Reporter: Domas Mituzas Email Updates:
Status: Verified Impact on me:
Category:MySQL Server: Command-line Clients Severity:S3 (Non-critical)
Version:8.0 OS:Any
Assigned to: CPU Architecture:Any

[1 Nov 2018 23:31] Domas Mituzas
mysqladmin from 8.0 uses 'SHUTDOWN' query instead of COM_SHUTDOWN, therefore doesn't work anymore on 5.6 instances. this breaks compatibility and doesn't work well in environments where one has different server versions. 

How to repeat:
mysqladmin -h mysql56 shutdown

Suggested fix:
don't break stuff.
[2 Nov 2018 0:19] MySQL Verification Team
Thank you for the bug report.