Bug 1041217

Summary:	[RFE][nova]: TransactionManager Utility
Product:	Red Hat OpenStack	Reporter:	RHOS Integration <rhos-integ>
Component:	RFEs	Assignee:	RHOS Maint <rhos-maint>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	unspecified	CC:	markmc, yeylon
Target Milestone:	---	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
URL:	https://blueprints.launchpad.net/nova/+spec/transaction-manager
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 17:07:43 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 13:59:04 UTC

Cloned from launchpad blueprint https://blueprints.launchpad.net/nova/+spec/transaction-manager.

Description:

In Openstack we have a lot of code that is creating/allocating some resources (networks, volumes, quotas, etc.) but we don't have a clear way to release such resources in case of failure. Release is currently done manually in "except" block. Such approach leads to more complicated error handling and potential resource leak.
We could implement a utility that will help us to manage such resources and will allow us to simplify existing error handling and fix resource leak issues.

Please see Specification URL for details

Specification URL (additional information):

https://wiki.openstack.org/wiki/TransactionManager