Re: [ovirt-users] Failed migration - Migration is stuck
On 21 April 2016 at 12:43, Michal Skrivanek <michal.skrivanek(a)redhat.com> wrote:
> max_outgoing_migrations = 3
you should lower this, otherwise it won’t fit (1 migration at 100MBps would eat your
whole link already). So use 1
> migration_downtime = 1000
it’s not really 1000. There’s a UI for that in Edit VM, so you shouldn’t set it here at
all
and if you do, the algorithm behind it is not-so-great in <=3.6.5.
Use migration_downtime_steps=3 or 5 or something lower to mitigate that wrong algorithm
behavior
if you need to overcome a longer peak period of activity, also change
migration_progress_timeout to something more than 150s
Thanks so much for the tips Michal, I really appreciate it. I'll have
to try these tweaks in my next maintenance window, so I'll post my
findings in a few days.
Cheers,
Ollie