Bug 1577211

Summary:	Blob unknown error when pushing image to internal registry
Product:	OpenShift Container Platform	Reporter:	Paul Dwyer <pdwyer>
Component:	Image Registry	Assignee:	Oleg Bulatov <obulatov>
Status:	CLOSED NOTABUG	QA Contact:	Dongbo Yan <dyan>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	3.4.1	CC:	aos-bugs, bparees, obulatov, pdwyer
Target Milestone:	---	Keywords:	Reopened
Target Release:	3.4.z
Hardware:	x86_64
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2018-06-26 15:07:58 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:

Description Paul Dwyer 2018-05-11 13:20:06 UTC

Description of problem:
Customer is reporting an increase in blob unknown messages when uploading images to internal registry

Version-Release number of selected component (if applicable):
OpenShift version 3.1.44
ose-docker-registry image version 3.4.1.44
registry is scaled to 3 using gluster backed PV
sessionAffinity of docker-registry service is set to ClientIP


How reproducible:
intermittent, no discernible pattern
no recent changes
sometimes repushing image will work but can take several attempts


Additional info:
Not seeing much in registry logs, will attach

I have noticed that 2 out of the 3 pods are running on same infrastructure node