Bug 1042135

Summary:	[RFE][oslo]: Deprecate kombu as default rpc mechanism
Product:	Red Hat OpenStack	Reporter:	RHOS Integration <rhos-integ>
Component:	RFEs	Assignee:	RHOS Maint <rhos-maint>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	markmc, yeylon
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
URL:	https://blueprints.launchpad.net/oslo/+spec/no-kombu-default
Whiteboard:	upstream_milestone_none upstream_status_unknown upstream_definition_drafting
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-03-19 17:23:41 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description RHOS Integration 2013-12-12 21:07:54 UTC

Cloned from launchpad blueprint https://blueprints.launchpad.net/oslo/+spec/no-kombu-default.

Description:

Historically, it seems that the Kombu driver is default because it existed before all others, before there was an abstraction. With multiple implementations now available, it may be time for a change.

Why?
* A default skews the practical testing scenarios, ensuring maturity of one driver over others.
* The kombu driver does not work "out of the box", so it is no more reasonable as a default than impl_fake.
* The RPC code is now in openstack-common, so addressing this later will only create additional technical debt.

In Grizzly, we will allow projects to deprecate the choice of Kombu as the default so that it may be removed in a future release.

Specification URL (additional information):

None