Description of problem:

The restart of the node lasted 7 minutes and there were 7 minutes of downtime. It looks like this could happen because the pods of some services are all in the same node, causing a loss of service while the node is restarting. For example, in the test I did, the black-box pods were down, and also when trying to spawn a notebook, the notebook only started when the node started again. 

Prerequisites (if any, like setup, operators/versions):

RHODS installed in a cluster with 2 worker nodes

Steps to Reproduce

1. Install RHODS
2. restart a node
3. Verify availability with rhods_aggregate_availability

Actual results:

There is a downtime of 7 minutes

Expected results:

There is no downtime

Reproducibility (Always/Intermittent/Only Once):

intermittent depends on the node that you're deleting

Build Details:

Workaround:

Additional info: