Description of problem:

During the upgrade we found two downtimes. One of them takes 52 seconds to be recovered and the second one 31 seconds.

We have observed that blackbox-exporter is down during the openshift upgrade and also we lost Jupyterhub service. We spawn a notebook and we did run a infinite loop and the notebook fails during the upgrade. 

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

Upgrade path is available in the channel and major versions, y stream

Steps to Reproduce

 1. Change channel to candidate if the major version is not available in the current channel. 

echo '{"version":{"channel_group":"candidate"}}' | ocm patch cluster <clusted id>

2. Upgrade Openshift

Go to cluster setting -> Click on Update tab-> Select major version you want to upgrade on the cluster -> Click Next -> Schedule Update ->Confirmation 

3. Verify into Prometheus the metric

rhods_aggregate_availability

Look the downtime in the components

Actual results:

There are two downtimes

Expected results:

There is not downtime

Reproducibility (Always/Intermittent/Only Once):

Always

Build Details:

Workaround:

Additional info: