Reviewed: https://review.openstack.org/356558
Committed:
https://git.openstack.org/cgit/openstack/nova/commit/?id=94f89e96f86c1d1bb258da754d3d368856637a0a
Submitter: Jenkins
Branch: master
commit 94f89e96f86c1d1bb258da754d3d368856637a0a
Author: Alberto Planas <apla...@gmail.com>
Date: Wed Aug 17 17:37:48 2016 +0200
Add migrate_uri for invoking the migration
Add migrate_uri parameter in Guest.migrate method, to indicate
the URI where we want to stablish the connection in a non-tunneled
migration.
Change-Id: I6c2ad0170d90560d7d710b578c45287e78c682d1
Closes-Bug: #1614063
** Changed in: nova
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1614063
Title:
live migration doesn't use the correct interface to transfer the data
Status in OpenStack Compute (nova):
Fix Released
Bug description:
My compute nodes are attached to several networks (storage, admin,
etc). For each network I have a real or a virtual interface with an IP
assigned. The DNS is properly configured, so I can `ping node1`, or
`ping storage.node1`, and is resolving to the correct IP.
I want to use the second network to transfer the data so:
* Setup libvirtd to listen into the correct interface (checked with
netstat)
* Configure nova.conf live_migration_uri
* Monitor interfaces and do nova live-migration
The migration works correctly, is doing what I think is a PEER2PEER
migration type, but the data is transfered via the normal interface.
I can replicate it doing a live migration via virsh.
After more checks I discover that if I do not use the --migrate-uri
parameter, libvirt will ask to the other node the hostname to build
this migrage_uri parameter. The hostname resolve via the slow
interface.
Using the --migrate-uri and the --listen-address (for the -incoming
parameter) works at libvirt level. So we need somehow inject this
paramer in migrateToURIx in the libvirt nova driver.
I have a patch (attached - WIP) that address this issue.
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