Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-20 Thread Martin Sivak
31670 Labège, FRANCE > > > -- > *From: *"Pavel Gashev" <p...@acronis.com> > *To: *users@ovirt.org, "nelson lameiras" <nelson.lamei...@lyra-network.com > > > *Sent: *Tuesday, April 18, 2017 7:16:08 PM > *Subject: *Re:

Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-19 Thread Konstantin Shalygin
We have many issues migration with 1G and 18-25 vms. Is slow, stuck, failed. Switched to 10G and set migration limit to 5000Mbps (actually this is don't work, but if don't set this field, limit is 1000Mbps!) - 25vms migrate ~ 30seconds in total. On 04/19/2017 07:41 PM, Nelson Lameiras

Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-19 Thread Nelson Lameiras
l'innovation, 31670 Labège, FRANCE From: "Konstantin Shalygin" <k0...@k0ste.ru> To: "Nelson Lameiras" <nelson.lamei...@lyra-network.com> Cc: users@ovirt.org Sent: Wednesday, April 19, 2017 11:25:27 AM Subject: Re: [ovirt-users] massive simultaneous vms migrations ?

Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-19 Thread Konstantin Shalygin
uot; <k0...@k0ste.ru> To: users@ovirt.org, "Nelson Lameiras" <nelson.lamei...@lyra-network.com> Sent: Wednesday, April 19, 2017 3:15:29 AM Subject: Re: Re: [ovirt-users] massive simultaneous vms migrations ? Hello. What is your Migration Network? We have some hosts that

Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-19 Thread Nelson Lameiras
Lyra Network, 109 rue de l'innovation, 31670 Labège, FRANCE From: "Yaniv Kaul" <yk...@redhat.com> To: "Nelson Lameiras" <nelson.lamei...@lyra-network.com> Cc: "ovirt users" <users@ovirt.org> Sent: Wednesday, April 19, 2017 9:13:27 AM Sub

Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-19 Thread Nelson Lameiras
;nelson.lamei...@lyra-network.com> Sent: Wednesday, April 19, 2017 3:15:29 AM Subject: Re: Re: [ovirt-users] massive simultaneous vms migrations ? Hello. What is your Migration Network? > We have some hosts that have 60 vms. So this will create a 60 vms migrating > simultaneously. > Some vms

Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-19 Thread Nelson Lameiras
meiras" <nelson.lamei...@lyra-network.com> Sent: Tuesday, April 18, 2017 7:16:08 PM Subject: Re: [ovirt-users] massive simultaneous vms migrations ? VDSM has the following config option: # Maximum concurrent outgoing migrations # max_outgoing_migrations = 2 On Tue, 2017-04-18 at 18

Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-19 Thread Yaniv Kaul
On Tue, Apr 18, 2017 at 7:48 PM, Nelson Lameiras < nelson.lamei...@lyra-network.com> wrote: > hello, > > When putting a host on "maintenance mode", all vms start migrating to > other hosts. > > We have some hosts that have 60 vms. So this will create a 60 vms > migrating simultaneously. > Some

Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-18 Thread Konstantin Shalygin
Hello. What is your Migration Network? We have some hosts that have 60 vms. So this will create a 60 vms migrating simultaneously. Some vms are under so much heavy loads that migration fails often (our guess is that massive simultaneous migrations does not help migration convergence) - even

Re: [ovirt-users] massive simultaneous vms migrations ?

2017-04-18 Thread Pavel Gashev
VDSM has the following config option: # Maximum concurrent outgoing migrations # max_outgoing_migrations = 2 On Tue, 2017-04-18 at 18:48 +0200, Nelson Lameiras wrote: hello, When putting a host on "maintenance mode", all vms start migrating to other hosts. We have some hosts that have 60 vms.

[ovirt-users] massive simultaneous vms migrations ?

2017-04-18 Thread Nelson Lameiras
hello, When putting a host on "maintenance mode", all vms start migrating to other hosts. We have some hosts that have 60 vms. So this will create a 60 vms migrating simultaneously. Some vms are under so much heavy loads that migration fails often (our guess is that massive simultaneous