Event scheduler can block the failover about mysql-master-ha HOT 1 OPEN

I'm also having the same problem.  However I would like to add that as far as I 
can tell there is no option to handle the failover of events to a new master.

In the case that you have your events set to SLAVESIDE_DISABLED (see the 
information_schema.events table) and have the event scheduler running on all 
servers, the slave that becomes that master will not start running the events 
because the id of the originator has not changed 

In the case that you have your events set to ENABLED (see the 
information_schema.events table) and have the event scheduler running only on 
the master server, the event scheduler will not be enabled on the slave that 
gets promoted to the new master.

The plan to get around this for the time being by adding something in our 
master_ip_failover_script to enable the event scheduler after re-assigning the 
VIP.  This way in the case of failover that results from system failure the 
event scheudle will be enabled.  In the case that it's a planned failover we'll 
just manipulate the event schedulers on the servers directly.  Admittedly this 
is a bit janky and it would be better to have something in the MHA solution to 
handle this.