Bug 1041542

Summary:	[RFE][swift]: Automate config distribution between servers
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/swift/+spec/distributed-config
Whiteboard:	upstream_milestone_none upstream_status_unknown upstream_definition_new
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-03-19 17:26:29 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 16:52:02 UTC

Cloned from launchpad blueprint https://blueprints.launchpad.net/swift/+spec/distributed-config.

Description:

What: 
Automate the distribution of files to the /etc/swift  of Swift servers.
This may include ring files as well as various configuration files. 
This enhancement ensures that configuration converges to be identical in a large population of servers. 

How: 
 - Use rsync for data transfer 
 - In the fault free scenario, design for a fast  global update to N servers, using only N updates, with each server updating two other servers, and the global update taking log(N) steps. 
 - Use a gossip algorithm for convergence after faults. 
 - Offer configurable randomized slowdown parameters to help control the global resources used by the update and synchronization.
  

Specification URL (additional information):

None