Bug 1868922

Summary:	[Docs] Document debugging cluster performance issues with Prometheus
Product:	OpenShift Container Platform	Reporter:	oarribas <oarribas>
Component:	Documentation	Assignee:	Tami Love <tlove>
Status:	CLOSED DEFERRED	QA Contact:	ge liu <geliu>
Severity:	high	Docs Contact:	Latha S <lmurthy>
Priority:	high
Version:	4.6	CC:	aacostab, ahoffer, ekuric, jcall, lmurthy, oarribas, ocasalsa, tlove
Target Milestone:	---	Keywords:	Reopened
Target Release:	4.6.z	Flags:	oarribas: needinfo-
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:	2023-03-09 00:58:58 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 oarribas 2020-08-14 11:19:34 UTC

Description of problem:
Provide a supported tool to test ETCD performance, as bad performance of ETCD is a common cause of issues in OpenShift clusters.

Currently, there are KCS to test the ETCD disk performance using fio [1] [2], but the tool is not included in any supported image, and also not supported to use the fedora image.


Version-Release number of selected component (if applicable):
All OCP 4 versions, including 4.5


How reproducible:
See [1] and [2]


Actual results:
No supported tool to test ETCD performance


Expected results:
Documented and supported tools to test ETCD performance



[1] https://access.redhat.com/solutions/4885641
[2] https://access.redhat.com/solutions/4929021

Comment 14 Shubha Narayanan 2021-09-01 10:06:25 UTC

@oarribas - Is this bug still valid. Looks like all the fixes have been tracked through another bug that's already closed https://bugzilla.redhat.com/show_bug.cgi?id=1853618 . Kindly confirm.

Comment 16 Shubha Narayanan 2021-09-15 04:06:41 UTC

As per SME, the debugging steps for all etcd issues are available in etcd runbook. Here's the link: https://github.com/openshift/runbooks/tree/master/alerts/cluster-etcd-operator. Since we do not link or replicate the content available in runbook, closing this bug.

Comment 25 Shiftzilla 2023-03-09 00:58:58 UTC

OpenShift has moved to Jira for its defect tracking! This bug can now be found in the OCPBUGS project in Jira.

https://issues.redhat.com/browse/OCPBUGS-8791

Comment 26 Red Hat Bugzilla 2023-09-18 00:21:58 UTC

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 120 days