Hi Andrew, Yes..both on the same node...but i have 4 nodes of this type in the same cluster....So it should work or not ??
1. 4 physical nodes with 12 bricks each(distributed replicated)... 2. The same all 4 nodes use for the compute purpose also... Do i still require the VIP...or not ?? because i tested even the mount point node goes down...the VM will not pause and not affect... On Fri, Jul 4, 2014 at 1:18 PM, Andrew Lau <and...@andrewklau.com> wrote: > Or just localhost as your computer and storage are on the same box. > > > On Fri, Jul 4, 2014 at 2:48 PM, Punit Dambiwal <hypu...@gmail.com> wrote: > > Hi Andrew, > > > > Thanks for the update....that means HA can not work without VIP in the > > gluster,so better to use the glusterfs with the VIP to take over the > ip...in > > case of any storage node failure... > > > > > > On Fri, Jul 4, 2014 at 12:35 PM, Andrew Lau <and...@andrewklau.com> > wrote: > >> > >> Don't forget to take into consideration quroum, that's something > >> people often forget > >> > >> The reason you're having the current happen, is gluster only uses the > >> initial IP address to get the volume details. After that it'll connect > >> directly to ONE of the servers, so with your 2 storage server case, > >> 50% chance it won't go to paused state. > >> > >> For the VIP, you could consider CTDB or keepelived, or even just using > >> localhost (as your storage and compute are all on the same machine). > >> For CTDB, checkout > >> http://community.redhat.com/blog/2014/05/ovirt-3-4-glusterized/ > >> > >> I have a BZ open regarding gluster VMs going into paused state and not > >> being resumable, so it's something you should also consider. My case, > >> switch dies, gluster volume goes away, VMs go into paused state but > >> can't be resumed. If you lose one server out of a cluster is a > >> different story though. > >> https://bugzilla.redhat.com/show_bug.cgi?id=1058300 > >> > >> HTH > >> > >> On Fri, Jul 4, 2014 at 11:48 AM, Punit Dambiwal <hypu...@gmail.com> > wrote: > >> > Hi, > >> > > >> > Thanks...can you suggest me any good how to/article for the glusterfs > >> > with > >> > ovirt... > >> > > >> > One strange thing is if i will try both (compute & storage) on the > same > >> > node...the below quote not happen.... > >> > > >> > --------------------- > >> > > >> > Right now, if 10.10.10.2 goes away, all your gluster mounts go away > and > >> > your > >> > VMs get paused because the hypervisors can’t access the storage. Your > >> > gluster storage is still fine, but ovirt can’t talk to it because > >> > 10.10.10.2 > >> > isn’t there. > >> > --------------------- > >> > > >> > Even the 10.10.10.2 goes down...i can still access the gluster mounts > >> > and no > >> > VM pause....i can access the VM via ssh...no connection > failure.....the > >> > connection drop only in case of SPM goes down and the another node > will > >> > elect as SPM(All the running VM's pause in this condition). > >> > > >> > > >> > > >> > On Fri, Jul 4, 2014 at 4:12 AM, Darrell Budic > >> > <darrell.bu...@zenfire.com> > >> > wrote: > >> >> > >> >> You need to setup a virtual IP to use as the mount point, most people > >> >> use > >> >> keepalived to provide a virtual ip via vrrp for this. Setup something > >> >> like > >> >> 10.10.10.10 and use that for your mounts. > >> >> > >> >> Right now, if 10.10.10.2 goes away, all your gluster mounts go away > and > >> >> your VMs get paused because the hypervisors can’t access the storage. > >> >> Your > >> >> gluster storage is still fine, but ovirt can’t talk to it because > >> >> 10.10.10.2 > >> >> isn’t there. > >> >> > >> >> If the SPM goes down, it the other hypervisor hosts will elect a new > >> >> one > >> >> (under control of the ovirt engine). > >> >> > >> >> Same scenarios if storage & compute are on the same server, you still > >> >> need > >> >> a vip address for the storage portion to serve as the mount point so > >> >> it’s > >> >> not dependent on any one server. > >> >> > >> >> -Darrell > >> >> > >> >> On Jul 3, 2014, at 1:14 AM, Punit Dambiwal <hypu...@gmail.com> > wrote: > >> >> > >> >> Hi, > >> >> > >> >> I have some HA related concern about glusterfs with Ovirt...let say i > >> >> have > >> >> 4 storage node with gluster bricks as below :- > >> >> > >> >> 1. 10.10.10.1 to 10.10.10.4 with 2 bricks each and i have distributed > >> >> replicated architecture... > >> >> 2. Now attached this gluster storge to ovrit-engine with the > following > >> >> mount point 10.10.10.2/vol1 > >> >> 3. In my cluster i have 3 hypervisior hosts (10.10.10.5 to > 10.10.10.7) > >> >> SPM > >> >> is on 10.10.10.5... > >> >> 4. What happen if 10.10.10.2 will goes down.....can hypervisior host > >> >> can > >> >> still access the storage ?? > >> >> 5. What happen if SPM goes down ??? > >> >> > >> >> Note :- What happen for point 4 &5 ,If storage and Compute both > working > >> >> on > >> >> the same server. > >> >> > >> >> Thanks, > >> >> Punit > >> >> _______________________________________________ > >> >> 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 > >> > > > > > >
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