Bug 1216958 (ospd_dedicated_migration_network) - [RFE] Live migration should not use deployment network
Summary: [RFE] Live migration should not use deployment network
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: ospd_dedicated_migration_network
Product: Red Hat OpenStack
Classification: Red Hat
Component: rhosp-director
Version: 6.0 (Juno)
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: async
: 7.0 (Kilo)
Assignee: Eoghan Glynn
QA Contact: Prasanth Anbalagan
URL:
Whiteboard:
: 1276322 (view as bug list)
Depends On:
Blocks: 1414999
TreeView+ depends on / blocked
 
Reported: 2015-04-29 09:57 UTC by Alex Stellwag
Modified: 2019-09-09 17:02 UTC (History)
18 users (show)

Fixed In Version: openstack-tripleo-heat-templates-0.8.6-135.el7ost openstack-puppet-modules-2015.1.8-55.el7ost openstack-nova-2015.1.4-36.el7ost python-rdomanager-oscplugin-0.0.10-34.el7ost
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-09-07 09:49:10 UTC
Target Upstream Version:
Embargoed:


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Description Alex Stellwag 2015-04-29 09:57:31 UTC
Description of problem:

When live migration instances all data is transferred via the deployment network, which is neither redundant nor 10G

Version-Release number of selected component (if applicable):


How reproducible:

100%

Steps to Reproduce:
1. spin up an instance
2. live migrate the instance to another compute node
3. watch traffic going over the deployment net

Actual results:

All replication traffic if going through the deployment network

Expected results:

The network used for live-migration should be configurable (or at least it should be the "management" network) 

Additional info:

HA setup with rhel-osp-installer A2

Comment 3 Stephen Gordon 2015-06-04 05:40:55 UTC
Keith where should this kind of bug be moved for future Director roadmap tracking? It is possible to configure a migration network (though it's kind of indirect, you configure the live migration URI of each compute node so that it has a prefix/suffix to the hostname wildcard %s that is routed through a separate network) but will require work in director I expect to facilitate.

Comment 5 Daniel Berrangé 2015-08-28 14:30:13 UTC
There is a blueprint/spec proposed upstream to formally separate the migration traffic to a separate network:

https://review.openstack.org/#/c/194990/

It is going to be Mitaka release upstream at the earliest though

Comment 7 Stephen Gordon 2017-01-19 22:39:00 UTC
*** Bug 1276322 has been marked as a duplicate of this bug. ***

Comment 8 Ollie Walsh 2017-09-07 09:49:10 UTC
Resolved by https://bugzilla.redhat.com/show_bug.cgi?id=1428592.

By default the libvirt live migration socket is now tunnelled over SSH by default. All traffic is on the internal_api network (overcloud management network).


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