Bug 505634

Summary:	Feature: allow async replication of queue state to be stopped (and ideally restarted) on live broker
Product:	Red Hat Enterprise MRG	Reporter:	Gordon Sim <gsim>
Component:	qpid-cpp	Assignee:	Alan Conway <aconway>
Status:	CLOSED WONTFIX	QA Contact:	MRG Quality Engineering <mrgqe-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	1.1.1	CC:	cctrieloff, fhirtz, jross
Target Milestone:	---	Keywords:	Improvement
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-03-01 13:22:58 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Gordon Sim 2009-06-12 16:55:54 UTC

At present once a queue has been configured to generate events and the replicating event listener plugin has beenactivated there is no way to stop replication in a way that would allow it to be subsequently reactivated without stoppingthe broker instance.

Comment 1 Carl Trieloff 2009-06-30 14:24:20 UTC

Replication can be disabled by using an exchange configuration:

One simple option is to specify a --replication-exchange rather than a --replication-queue on the primary and then bind in a 'normal' queue (recommendation would be to use a fanout exchange).

To 'turn off' replication, you would then simply unbind the queue. Note however you would miss any further events. 


Note that a local broker or client can also be used to drain the queue for off-line recovery.

Comment 2 Justin Ross 2013-02-26 20:42:52 UTC

Alan, does the new ha-based replication currently allow this?

Comment 3 Alan Conway 2013-02-27 19:31:32 UTC

Not yet but it would be simple to add.

Comment 5 Alan Conway 2015-03-01 13:22:58 UTC

The latest release has a new queue replication mechanism based on the new HA module, the old asnync replication is gone. Please open a new BZ if there are any issues/missing features with the new mechanism.