Bug 1452616 – golang 1.8 performance regression in net/http affecting kubernetes scale

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Bug 1452616 - golang 1.8 performance regression in net/http affecting kubernetes scale

Summary:	golang 1.8 performance regression in net/http affecting kubernetes scale

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 7
Classification:	Red Hat
Component:	golang (Show other bugs)
Sub Component:
Version:	7.4
Hardware:	All Linux

Priority	high Severity high
Target Milestone:	rc
Target Release:	---
Assigned To:	Jakub Čajka
QA Contact:	Martin Cermak
Docs Contact:

URL:
Whiteboard:	aos-scalability-37
Keywords:

Depends On:
Blocks:	1454239
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Reported:	2017-05-19 06:47 EDT by Jeremy Eder
Modified:	2017-08-01 16:21 EDT (History)
CC List:	11 users (show)

See Also:
Fixed In Version:	golang-1.8.3-1.el7
Doc Type:	If docs needed, set a value
Doc Text:
Story Points:	---
Clone Of:
Clones:	1454239 (view as bug list)
Environment:
Last Closed:	2017-08-01 16:21:21 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:1859	normal	SHIPPED_LIVE	Moderate: golang security, bug fix, and enhancement update	2017-08-01 14:23:38 EDT

Groups: None (edit)

Description Jeremy Eder 2017-05-19 06:47:36 EDT

For background:

https://github.com/kubernetes/kubernetes/issues/45216
https://github.com/kubernetes/kubernetes/issues/45216#issuecomment-300136571
https://github.com/kubernetes/kubernetes/pull/45879

Description of problem:

Changes to implementation in net/http package cause 3x increase in CPU for apiserver and failing kubemark CI jobs upstream.  This BZ is to ensure we don't lose track of needing a solution to this issue before we build OpenShift 3.7.

That solution (as of now) make take one of several forms laid out in this email:
https://groups.google.com/d/msg/kubernetes-dev/cLr7egeRbHw/udDFyC-hBAAJ

Comment 9 errata-xmlrpc 2017-08-01 16:21:21 EDT

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-2017:1859

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