- Use Blueprints to deploy cluster with NameNode HA out-of-the-box
- Attempt an EU/RU
The problem is that during a Blueprint deployment, it keeps the following 2 configs in hadoop-env
When it's time to perform an EU/RU (or start NN in general), then it thinks that NameNode HA is still not complete.
Blueprint with HA out of the box needs a step to delete these configs after the deployment is done.