It does look like issue with kubeexec. "Failed to get list of pods" error is seen when master node does not reply to heketi's query of which are the gluster nodes. This means either master is not responding or the communication path from heketi pod to master is broken. How to debug 1. check if oc commands are working 2. Log on to heketi pod and use heketi-cli to get details which does not require the kubeexec path. Like heketi-cli volume list. If that works, heketi is responding. At this point it is verified that heketi is not the culprit. But we don't know if master or the communication path is the problem. I don't have any way to debug after this point.