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Bug 1148511

Summary:	Neutron DHCP Failover behavior
Product:	Red Hat OpenStack	Reporter:	Ken Schroeder <kschroed>
Component:	openstack-neutron	Assignee:	Ihar Hrachyshka <ihrachys>
Status:	CLOSED ERRATA	QA Contact:	Ofer Blaut <oblaut>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.0 (RHEL 7)	CC:	chrisw, dmaley, doyler, ihrachys, jdexter, jdonohue, lpeer, nyechiel, rhopenstack, yeylon
Target Milestone:	z2	Keywords:	OtherQA, ZStream
Target Release:	5.0 (RHEL 7)
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	openstack-neutron-2014.1.2-14.el6ost openstack-neutron-2014.1.2-12.el7ost	Doc Type:	Bug Fix
Doc Text:	Cause: on DHCP agent failover, DHCP port was not retained. Consequence: this broke DNS service for instances served by the DHCP agent that was failed over. Fix: the port is now saved on dhcp-agent-network-remove invocation, and later restored when dhcp-agent-network-add is called. Result: instances are still served via DNS after DHCP agent failover.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-11-03 08:39:09 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:
Bug Blocks:	1154145, 1154159

Description Ken Schroeder 2014-10-01 15:34:27 UTC

When dhcp-agent-network-remove, dhcp-agent-network add is issued the DHCP port IP address changes.  This results in breaking DNS for any VM that has been deployed on given network.  There is community bug and fix for this already and we'd like to see back port to Icehouse if possible.  


https://bugs.launchpad.net/neutron/+bug/1288923
https://review.openstack.org/#/c/79018/

Comment 5 errata-xmlrpc 2014-11-03 08:39:09 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2014-1786.html