When I shut down the host machine, the slave partitions are not promoted in some times.
I guess the master aggregator could not sense the state of the host as an offline.
When I only killed the process in force on the CLI, HA worked fine.
Through this, I have some question.
- What factor the master aggregator check whether the host works or not?
- How to configure the options for HA?
- Is there any strategy to decrease the HA downtime to promote a slave to master?
(In my case, the transaction were failed for 4 seconds)