Hi,

I looked a little and MHA is confirmed to be unmaintained by the author - https://github.com/shlomi-noach/awesome-mysql/pull/125#discussion_r1625189209.

Alternatives include:
* MaxScale; including the recent MaxScales GPL version probably supports the equivalent functionality

* https://proxysql.com/documentation/proxysql-cluster/

* Corosync/Pacemaker - this would be the closest to your existing MHA functionality.

As there was going to be an intensive test of any MHA developed, I think you'd be better served with one of the above alternatives with slightly longer learning and testing, but better long term stability for your system.

I wish you the best in your migration. A post completion experience email would be much appreciated so we can guide the next migration or improve documentation would be appreciated.

Daniel