git.net

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Openstack] live_migration only using 8 Mb speed


On 18-08-22 01:02:53, Satish Patel wrote:
> Matthew,
> 
> Thanks for reply, Look like i don't have this patch
> https://review.openstack.org/#/c/591761/
> 
> So i have to patch following 3 file manually?
> 
> nova/tests/unit/virt/libvirt/test_driver.py213
> nova/tests/unit/virt/test_virt_drivers.py2
> nova/virt/libvirt/driver.py
> 
> 
> On Wed, Aug 22, 2018 at 12:42 AM, Matthew Thode
> <prometheanfire at gentoo.org> wrote:
> > On 18-08-22 00:27:08, Satish Patel wrote:
> >> Folks,
> >>
> >> I am running openstack queens and hypervisor is kvm, my live migration
> >> working fine. but somehow it stuck to 8 Mb network speed and taking
> >> long time to migrate 1G instance.  I have 10Gbps network and i have
> >> tried to copy 10G file between two compute node and it did copy in 2
> >> minute, so i am not seeing any network issue also.
> >>
> >> it seem live_migration has some bandwidth limit, I have tried
> >> following option in nova.conf but it didn't work
> >>
> >> live_migration_bandwidth = 500
> >>
> >> My nova.conf look like following:
> >>
> >> live_migration_uri =
> >> "qemu+ssh://nova@%s/system?no_verify=1&keyfile=/var/lib/nova/.ssh/id_rsa"
> >> live_migration_tunnelled = True
> >> live_migration_bandwidth = 500
> >> hw_disk_discard = unmap
> >> disk_cachemodes = network=writeback
> >>
> >
> > Do you have a this patch (and a couple of patches up to it)?
> > https://bugs.launchpad.net/nova/+bug/1786346
> >

I don't know if that would cleanly apply (there are other patches that
changed those functions within the last month and a half.  It'd be best
to upgrade and not do just one patch (which would be an untested
process).

-- 
Matthew Thode (prometheanfire)
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 833 bytes
Desc: not available
URL: <http://lists.openstack.org/pipermail/openstack/attachments/20180822/ff5b0b8a/attachment.sig>