Description of problem: I left env several days unattended ( token expired during that period), came back checked engine.log and I see lots of error about failed to retrieve kubevirt VMs for node Version-Release number of selected component (if applicable): Software Version:4.4.0.2-0.1.el8ev How reproducible: 100 Steps to Reproduce: 1. Attach CNV to RHV 2. Leave for couple days 3. Check engine.log - lots of errors about no ability to communicate with Actual results: Overflown engine.log Expected results: not have new message every 1-2seconds Additional info: 2020-06-09 10:29:37,565+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.PrometheusClient] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-29) [] failed to retrieve prometheus url for kubevirt provider (url = https://$(ENV):6443): UnknownHostException: $(ENV) 2020-06-09 10:29:37,565+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.KubevirtUtils] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-29) [] No prometheus URL provided. Statistics won't be fetched for provider 'cnv' 2020-06-09 10:29:37,574+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.PrometheusClient] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-5) [] failed to retrieve prometheus url for kubevirt provider (url = https://$(ENV):6443): UnknownHostException: $(ENV) 2020-06-09 10:29:37,574+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.KubevirtUtils] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-5) [] No prometheus URL provided. Statistics won't be fetched for provider 'cnv' 2020-06-09 10:29:37,598+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.PrometheusClient] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-79) [] failed to retrieve prometheus url for kubevirt provider (url = https://$(ENV):6443): UnknownHostException: $(ENV) 2020-06-09 10:29:37,598+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.KubevirtUtils] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-79) [] No prometheus URL provided. Statistics won't be fetched for provider 'cnv' 2020-06-09 10:29:37,612+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.PrometheusClient] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-36) [] failed to retrieve prometheus url for kubevirt provider (url = https://$(ENV):6443): UnknownHostException: $(ENV) 2020-06-09 10:29:37,613+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.KubevirtUtils] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-36) [] No prometheus URL provided. Statistics won't be fetched for provider 'cnv' 2020-06-09 10:29:37,982+02 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.kubevirt.KubevirtVmStatsRefresher] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-77) [] failed to retrieve kubevirt VMs for node talayan-pytest-z7j54-worker-bqpvn: UnknownHostException: $(ENV) 2020-06-09 10:29:37,982+02 INFO [org.ovirt.engine.core.vdsbroker.monitoring.PollVmStatsRefresher] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-77) [] Failed to fetch vms info for host 'talayan-pytest-z7j54-worker-bqpvn'(4c95a664-4c31-43b3-9fd0-e8372436b96c) - skipping VMs monitoring. 2020-06-09 10:29:38,000+02 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.kubevirt.KubevirtVmStatsRefresher] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-46) [] failed to retrieve kubevirt VMs for node talayan-pytest-z7j54-worker-rp6lj: UnknownHostException: $(ENV) 2020-06-09 10:29:38,000+02 INFO [org.ovirt.engine.core.vdsbroker.monitoring.PollVmStatsRefresher] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-46) [] Failed to fetch vms info for host 'talayan-pytest-z7j54-worker-rp6lj'(f8cae1b2-c32b-44d0-8e1c-022a60b22a8e) - skipping VMs monitoring. 2020-06-09 10:29:38,620+02 ERROR [org.ovirt.engine.core.vdsbroker.monitoring.kubevirt.KubevirtVmStatsRefresher] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-35) [] failed to retrieve kubevirt VMs for node talayan-pytest-z7j54-worker-bnpcl: UnknownHostException: $(ENV) 2020-06-09 10:29:38,620+02 INFO [org.ovirt.engine.core.vdsbroker.monitoring.PollVmStatsRefresher] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-35) [] Failed to fetch vms info for host 'talayan-pytest-z7j54-worker-bnpcl'(4126c591-964d-49eb-a2bc-21cac8f52757) - skipping VMs monitoring. 2020-06-09 10:29:38,674+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.PrometheusClient] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-18) [] failed to retrieve prometheus url for kubevirt provider (url = https://$(ENV):6443): UnknownHostException: $(ENV) 2020-06-09 10:29:38,674+02 ERROR [org.ovirt.engine.core.vdsbroker.kubevirt.KubevirtUtils] (EE-ManagedScheduledExecutorService-engineScheduledThreadPool-Thread-18) [] No prometheus URL provided. Statistics won't be fetched for provider 'cnv'
Instead of spam, user can see failed token info in Events. And engine.log will contain only: No prometheus URL provided. Statistics won't be fetched for provider 'rhvintegration' This error will not be logged again until connectivity is broken again after being successfully restored. Software Version:4.4.3.8-0.1.el8ev
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Low: Red Hat Virtualization security, bug fix, and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2020:5179