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Bug 1684665

Summary:	Prometheus operator uses 0.15 core steady state on empty cluster
Product:	OpenShift Container Platform	Reporter:	Clayton Coleman <ccoleman>
Component:	Monitoring	Assignee:	Sergiusz Urbaniak <surbania>
Status:	CLOSED ERRATA	QA Contact:	Junqi Zhao <juzhao>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.1.0	CC:	erooth, mloibl, sponnaga, surbania, vlaad
Target Milestone:	---
Target Release:	4.1.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-04 10:44:51 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Clayton Coleman 2019-03-01 19:39:50 UTC

Prometheus operator reports using ~0.15 core continuously, which is more than prometheus.  Since it's doing nothing, it should be more like 0.01 or lower core.  Probably a hot loop or a busy check.

Comment 5 Junqi Zhao 2019-03-12 00:53:25 UTC

$ oc adm top pod prometheus-operator-7c54f4d9ff-nx7r7 -n openshift-monitoring
NAME                                   CPU(cores)   MEMORY(bytes)   
prometheus-operator-7c54f4d9ff-nx7r7   164m         32Mi        

change back to MODIFIED, will verify it when we get correct images

payload: 4.0.0-0.nightly-2019-03-06-074438

Comment 7 Junqi Zhao 2019-04-04 03:40:56 UTC

Prometheus operator reports using ~0.006 core now
pod_name:container_cpu_usage:sum{pod_name='prometheus-operator-7cc6c6d958-2mhb2',namespace='openshift-monitoring'}
Element	                                                                                                                Value
pod_name:container_cpu_usage:sum{namespace="openshift-monitoring",pod_name="prometheus-operator-7cc6c6d958-2mhb2"}	0.006288314400000285

payload: 4.0.0-0.nightly-2019-04-02-133735

Comment 9 errata-xmlrpc 2019-06-04 10:44:51 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, 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/RHBA-2019:0758