[ovirt-users] Help understanding Gluster in oVirt

[Donny Davis]

I am using ctdb for my storage only nodes and I must be doing something wrong because I still have selinux problems without using gluster to replicate my meta data for ctdb. They are storage only so turning off selinux doesn't bother me quite as much. 

Ctdb does work quite well for that purpose, as its a distribute only gluster. 

BTW thank you for the tutorial, I was kinda lost with glusterfs before I read it. 

Donny DOn Feb 4, 2015 2:35 PM, Jason Brooks <jbrooks at redhat.com> wrote:
>
>
>
> ----- Original Message ----- 
> > From: "Donny Davis" <donny at cloudspin.me> 
> > To: "Jason Brooks" <jbrooks at redhat.com>, "Ryan Groten" <Ryan.Groten at stantec.com> 
> > Cc: users at ovirt.org 
> > Sent: Wednesday, February 4, 2015 1:02:18 PM 
> > Subject: RE: [ovirt-users] Help understanding Gluster in oVirt 
> > 
> > I am in the process of adding two more nodes to my hosted-engine setup using 
> > localhost as the mount point, I will report how it goes. 
> > 
> > I guess it would really be dependent on how the system was setup. Each node 
> > would have to be exactly the same to expect good results. 
> > 
> > My major issue with ctdb is SELINUX, I cannot get it to run correctly and 
> > work with SELINUX enabled. I would define that as a major security hole on a 
> > hypervisor, but I'm sure I am just doing it wrong. 
>
> Yeah, in my howto I'm using the meta volume that ctdb uses for its lock 
> file to also store the config files for ctdb, and that's what selinux 
> doesn't like. It's not really necessary, though, the configs could just 
> be copied into the default locations on each node -- I think that would 
> resolve the selinux issue. 
>
> Jason 
>
> > 
> > 
> > 
> > Donny D 
> > 
> > -----Original Message----- 
> > From: users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] On Behalf Of 
> > Jason Brooks 
> > Sent: Wednesday, February 4, 2015 12:31 PM 
> > To: Ryan Groten 
> > Cc: users at ovirt.org 
> > Subject: Re: [ovirt-users] Help understanding Gluster in oVirt 
> > 
> > 
> > 
> > ----- Original Message ----- 
> > > From: "Ryan Groten" <Ryan.Groten at stantec.com> 
> > > To: users at ovirt.org 
> > > Sent: Tuesday, January 27, 2015 7:29:55 PM 
> > > Subject: [ovirt-users] Help understanding Gluster in oVirt 
> > > 
> > > I was planning on making a Gluster Data domain to test, and found some 
> > > great information on this page: 
> > > http://community.redhat.com/blog/2014/05/ovirt-3-4-glusterized/ 
> > > The article the author uses the CTDB service for VIP failover.  Is it 
> > > possible/recommended to not do this, and just create a gluster volume 
> > > on all the hosts in a cluster, then create the Gluster data domain as 
> > > localhost:<gluster_vol>? 
> > 
> > I think that should work -- the vip is important for nfs, and since the 
> > hosted engine requires nfs, I just use the vip for the gluster mount as 
> > well. 
> > 
> > For 3.6, I believe gluster will be an option for the hosted engine, and so 
> > ctdb will probably not be necessary. 
> > 
> > Regards, Jason 
> > 
> > > 
> > > Thanks, 
> > > Ryan 
> > > 
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