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Bug 1599787

Summary:	py-amqp will try to resolve hostnames through nameservers unless they have both IPv4 and IPv6 entries in /etc/hosts leading to timeouts
Product:	Red Hat OpenStack	Reporter:	Daniel Alvarez Sanchez <dalvarez>
Component:	python-amqp	Assignee:	RHOS Maint <rhos-maint>
Status:	CLOSED WONTFIX	QA Contact:	Shai Revivo <srevivo>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	11.0 (Ocata)	CC:	apevec, jschluet, lhh, rhos-maint, srevivo
Target Milestone:	zstream
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1599766
Clones:	1599789 (view as bug list)		Environment:
Last Closed:	2018-07-10 15:19:54 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:	1599766, 1607962
Bug Blocks:	1599784, 1599789

Description Daniel Alvarez Sanchez 2018-07-10 15:17:38 UTC

+++ This bug was initially created as a clone of Bug #1599766 +++

Description of problem:
OSPD normally configures the controllers hostnames in /etc/hosts (IPv4) but py-amqp will try to query nameservers because there's no IPv6 entry there.

When nameservers are non-existent or unreachable, this leads to 60 seconds timeout when connecting to Rabbit.

The fix got recently merged in py-amqp:

https://github.com/celery/py-amqp/commit/1ad97fb14c0c3c57395ca525932f95a830e51a88

We would need this fix in OSP11.