We set up Ops Manager in HA mode according to the official MongoDB documentation.
This is the first time we’ve used and configured Ops Manager that way.
The official documentation does not describe in detail how exactly the Load balancer works, so I would be grateful if someone could explain in more details how Ops Manager works in HA mode and what will happen if one of the servers on which Ops Manager is installed crashes.
Will the Load balancer automatically switch everything to another Ops manager instance?
Also, is there anything else in the configuration that needs to be adjusted that isn’t listed in the documentation?
This is a load balanacer external to Ops Manage, either an existing one or one to install. Per the docs:
The Ops Manager Application’s components are stateless between requests. Any Ops Manager Application server can handle requests as long as all the servers read from the same Ops Manager Application Database. If one Ops Manager Application becomes unavailable, another fills requests.