On Thu, Oct 03, 2013 at 12:44:14PM +0300, Livnat Peer wrote: > Hi Gianluca, > > <snip> > > On 10/02/2013 08:52 PM, Itamar Heim wrote: > > On 09/28/2013 08:33 PM, Gianluca Cecchi wrote: > >> Hello, > >> I remember in the past that could be a problem to have high usage of > >> ovirtmgmt network because engine sometimes detects hosts as > >> unresponsive. > >> And it should this the reason about bandwith limitation on vm > >> migration, until dedicated network for it has been released. > > We have a dedicated migration network in oVirt 3.3, which means all the > migration network is using a dedicated network and not the management > network. > The caveat is that we still did not add support for capping it's bandwidth. > The problem you detailed above can be bypassed by configuring the > migration network on a dedicated interface. > > >> SO the question is : what about ovirtmgmt network for gluster > >> replication when gluster domain is provided by ovirt nodes? > >> I suppose it could be a problem too, couldn't it? > > yes that is correct, using ovirtmgmt for non management traffic is not a > good idea. > > >> In case I have a dedicated network for gluster for the nodes, how can > >> i configure it? > > Generally there two ways to go about this: > > 1. add a new network role 'gluster replication' and then adjust the > engine code to pass the network with this role as parameter to the > replication verb in VDSM. > > 2. in the replication verb in the UI let the user choose which network > to use for the replication. > > I am not familiar with the replication verb so I might be missing > something but otherwise I think that solution 2 is more simple and less > invasive then requiring a new network role.
Bala, is there a means to select, for each node, which IP address is to be used for replication? AFAICT we use the host fqdn, which most probably resolves to the ovirtmgmt device. > > >> Can I configure in this case Gluster storage domain from ovirt engine > >> or does it require to be on this network too? > >> > >> Thanks in advance for any suggestion > >> > >> Gianluca > >> _______________________________________________ > >> Users mailing list > >> Users@ovirt.org > >> http://lists.ovirt.org/mailman/listinfo/users > >> > > > > livnat - would network QoS cover this? > > Network Qos is needed in addition to what I have specified above. and it > would be available in oVirt 3.4 hopefully, but if you use a dedicated > network as suggested above you can bypass the traffic shaping issue by > using a dedicated NIC. > > > Livnat > > > vijay/sahina - does it make sense to define a 'gluster replication > > network' or something like that? > > > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users