Bug 1936488 - [sig-instrumentation][Late] Alerts shouldn't report any alerts in firing state apart from Watchdog and AlertmanagerReceiversNotConfigured: Prometheus query error
Summary: [sig-instrumentation][Late] Alerts shouldn't report any alerts in firing stat...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: OpenShift Container Platform
Classification: Red Hat
Component: Multi-Arch
Version: 4.8
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: ---
: 4.8.0
Assignee: Prashanth Sundararaman
QA Contact: Jeremy Poulin
URL:
Whiteboard:
Depends On:
Blocks: 1938316
TreeView+ depends on / blocked
 
Reported: 2021-03-08 15:03 UTC by Aditya Narayanaswamy
Modified: 2021-07-27 22:52 UTC (History)
15 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1938316 (view as bug list)
Environment:
[sig-instrumentation][Late] Alerts shouldn't report any alerts in firing state apart from Watchdog and AlertmanagerReceiversNotConfigured [Suite:openshift/conformance/parallel]
Last Closed: 2021-07-27 22:51:42 UTC
Target Upstream Version:
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:2438 0 None None None 2021-07-27 22:52:19 UTC

Comment 1 Simon Pasquier 2021-03-08 15:33:51 UTC
Looking at release-openshift-origin-installer-e2e-remote-libvirt-image-ecosystem-ppc64le-4.8 [1], there's a problem with DNS resolution for Alertmanager pods [2] which leads to "AlertmanagerMembersInconsistent" being fired. It should be redirected to the teams dealing with libvirt and/or ppc64 platforms because it's not something we see in other environments.

Looking at periodic-ci-openshift-release-master-nightly-4.8-e2e-gcp-rt [3], "TargetDown" is firing for the node-exporter and kubelet targets. It means that for some reason, Prometheus fails to scrape metrics and I can see some failures in node_exporter's kube-rbac-proxy [4][5][6] that would match. Again since it is specific to a given job, it would be best redirected to the folks in charge of this job.

[1] https://prow.ci.openshift.org/view/gcs/origin-ci-test/logs/release-openshift-origin-installer-e2e-remote-libvirt-image-ecosystem-ppc64le-4.8/1368381121678544896
[2] https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/origin-ci-test/logs/release-openshift-origin-installer-e2e-remote-libvirt-image-ecosystem-ppc64le-4.8/1368381121678544896/artifacts/e2e-remote-libvirt/pods/openshift-monitoring_alertmanager-main-0_alertmanager.log
[3] https://prow.ci.openshift.org/view/gcs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.8-e2e-gcp-rt/1368886803049746432
[4] https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.8-e2e-gcp-rt/1367656589833539584/artifacts/e2e-gcp-rt/gather-extra/artifacts/pods/openshift-monitoring_node-exporter-dnw48_kube-rbac-proxy.log
[5] https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.8-e2e-gcp-rt/1367656589833539584/artifacts/e2e-gcp-rt/gather-extra/artifacts/pods/openshift-monitoring_node-exporter-5jz89_node-exporter.log
[6] https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/origin-ci-test/logs/periodic-ci-openshift-release-master-nightly-4.8-e2e-gcp-rt/1367656589833539584/artifacts/e2e-gcp-rt/gather-extra/artifacts/pods/openshift-monitoring_node-exporter-grgw8_kube-rbac-proxy.log

Comment 2 Prashanth Sundararaman 2021-03-10 01:42:22 UTC
i see this issue on any libvirt deploy on baremetal..not specific to multi-arch, where there is this alert firing:

33.33% of the machine-api-controllers/machine-api-controllers targets in NamespaceNSopenshift-machine-api namespace are down.

this is due to the kube-rbac-proxy-machine-mtrc container reporting these errors:

I0309 17:29:57.278737       1 main.go:159] Reading config file: /etc/kube-rbac-proxy/config-file.yaml
I0309 17:29:57.285997       1 main.go:190] Valid token audiences: 
I0309 17:29:57.286071       1 main.go:278] Reading certificate files
I0309 17:29:57.286336       1 main.go:311] Starting TCP socket on 0.0.0.0:8441
I0309 17:29:57.287013       1 main.go:318] Listening securely on 0.0.0.0:8441
2021/03/09 17:43:04 http: proxy error: dial tcp [::1]:8081: connect: connection refused
2021/03/09 17:43:12 http: proxy error: dial tcp [::1]:8081: connect: connection refused
2021/03/09 17:43:33 http: proxy error: dial tcp [::1]:8081: connect: connection refused
2021/03/09 17:43:42 http: proxy error: dial tcp [::1]:8081: connect: connection refused
2021/03/09 17:44:03 http: proxy error: dial tcp [::1]:8081: connect: connection refused
2021/03/09 17:44:12 http: proxy error: dial tcp [::1]:8081: connect: connection refused
2021/03/09 17:44:33 http: proxy error: dial tcp [::1]:8081: connect: connection refused
2021/03/09 17:44:42 http: proxy error: dial tcp [::1]:8081: connect: connection refused
2021/03/09 17:45:03 http: proxy error: dial tcp [::1]:8081: connect: connection refused

Comment 3 Andy McCrae 2021-03-10 10:13:11 UTC
This looks to be happening because a change to metrics went in to the machine-api-operator, and the required provider change was not applied to the libvirt provider:

https://github.com/openshift/machine-api-operator/pull/609

This will impact all branches going back to 4.6 - I'm looking into applying the change to the libvirt provider now.

Comment 4 Dan Li 2021-03-11 13:13:45 UTC
Hi Andy or Prashanth, as part of bug triaging, can we provide a "Severity" for this bug?

Comment 5 Andy McCrae 2021-03-11 16:24:10 UTC
I've marked this as Medium - This should only impact CI since the libvirt-provider isn't used in supported environments, but none-the-less it impairs out ability to perform accurate CI runs.

We have a PR up for master, but we will need to shepherd this through to 4.6: https://github.com/openshift/cluster-api-provider-libvirt/pull/218

Comment 6 Yaakov Selkowitz 2021-03-12 18:57:50 UTC
(In reply to Andy McCrae from comment #5)
> We have a PR up for master, but we will need to shepherd this through to
> 4.6: https://github.com/openshift/cluster-api-provider-libvirt/pull/218

Automatic cherry-pick failed, so we'll need manual PRs for 4.7 and 4.6.

Comment 9 Kir Kolyshkin 2021-03-26 21:02:52 UTC
Should this one be closed now?

Comment 10 Aditya Narayanaswamy 2021-04-07 14:16:51 UTC
Yeah you can close it.

Comment 13 errata-xmlrpc 2021-07-27 22:51:42 UTC
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 (Moderate: OpenShift Container Platform 4.8.2 bug fix and security 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-2021:2438


Note You need to log in before you can comment on or make changes to this bug.