Bug 1886553

Summary:	i/o timeout experienced from build02 when targeting CI test cluster during test execution
Product:	OpenShift Container Platform	Reporter:	Alexander Constantinescu <aconstan>
Component:	Networking	Assignee:	Alexander Constantinescu <aconstan>
Networking sub component:	openshift-sdn	QA Contact:	zhaozhanqi <zzhao>
Status:	CLOSED ERRATA	Docs Contact:
Severity:	urgent
Priority:	urgent	CC:	aaleman, anbhat, jluhrsen, trozet, wking
Version:	4.5
Target Milestone:	---
Target Release:	4.7.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-02-24 15:24:26 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 Alexander Constantinescu 2020-10-08 18:20:45 UTC

Description of problem:

I am not going to spend time detailing this problem, it's been described in great details here: https://docs.google.com/document/d/1Cw5vt6DLh7-9KkCmXkI55svPhFl7XpdxcEWRrJEnoWk/edit

Short summary: CI runs on build02 have a higher flake rate than build01, the most flakes all seem to have the same cause: "dial tcp i/o timeout CI_CLUSTER"

This has lead to build02 being temporarily decommissioned, but it is needed for the CI team to be able to perform "no-down time" upgrades (i.e: lifting load from build01 / build02 while one or the other is upgrading OCP version)

It is not necessarily an openshift-sdn bug, but it's networking related (or at least networking exposes it)....and hey, someone's gotta do it.    

Version-Release number of selected component (if applicable):


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Comment 3 zhaozhanqi 2020-11-18 09:54:00 UTC

this issue has been fixed and move it to 'verified'

Comment 6 errata-xmlrpc 2021-02-24 15:24:26 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 4.7.0 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-2020:5633