Bug 1454239

Summary:	golang 1.8 performance regression in net/http affecting kubernetes scale
Product:	OpenShift Container Platform	Reporter:	Jeremy Eder <jeder>
Component:	Node	Assignee:	Seth Jennings <sjenning>
Status:	CLOSED ERRATA	QA Contact:	Mike Fiedler <mifiedle>
Severity:	high	Docs Contact:
Priority:	high
Version:	3.6.0	CC:	aos-bugs, ccoleman, dwalsh, eparis, jcajka, jeder, jokerman, jwboyer, law, mmccomas, qe-baseos-tools-bugs, sjenning, wmeng, xtian
Target Milestone:	---
Target Release:	3.7.0
Hardware:	All
OS:	Linux
Whiteboard:	aos-scalability-37
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:	undefined	Story Points:	---
Clone Of:	1452616	Environment:
Last Closed:	2017-11-28 21:55:46 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:
Bug Depends On:	1452616
Bug Blocks:

Comment 1 Seth Jennings 2017-08-07 15:40:40 UTC

Related upstream:
https://github.com/kubernetes/kubernetes/issues/45216

They are using an out of tree patch to Golang:
https://github.com/kubernetes/kubernetes/pull/45879/files#diff-2e328a8d61eb89287c6b3fd10183577c

Comment 2 Seth Jennings 2017-08-07 15:42:43 UTC

Looks like it is fixed in Golang 1.8.3
https://github.com/kubernetes/kubernetes/pull/46429

Can you retry with that version?

Comment 3 Seth Jennings 2017-09-05 14:04:27 UTC

OCP 3.7 builds with golang 1.8.3

Comment 5 Mike Fiedler 2017-10-16 18:49:00 UTC

Discussed with the performance team.   Verification consists of verifying OCP 3.7 is compiled with golang 1.8:

Verified on OCP 3.7.0-0.147.0:


root@ip-172-31-15-244: ~/svt/openshift_scalability # gops

81944 1     openshift         go1.8.3 /usr/bin/openshift
79468 1     openshift         go1.8.3 /usr/bin/openshift
30047 1     openshift         go1.8.3 /usr/bin/openshift

Comment 8 errata-xmlrpc 2017-11-28 21:55:46 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/RHSA-2017:3188