[ovirt-users] Live Migration / Snapshots- CentOS 6.5

[Brad Bendy]

Is normal behavior a outage when a snapshot occurs? Ive got the rhev
builds installed but when I take a snap im getting well over two
minutes of downtime, on a VM with zero usage. The VM goes into "pause"
state then, I guess the snapshot is a copy of the entire VM? I have
not got a second host up with those rhev build to see the behavior
when disk migrating

Thanks

On Sat, Jul 5, 2014 at 7:51 AM, Brad Bendy <brad.bendy at gmail.com> wrote:
> There we go, sorry about that! Ill give these a test then. Thanks for the help
>
> On Sat, Jul 5, 2014 at 7:39 AM, Karli Sjöberg <Karli.Sjoberg at slu.se> wrote:
>>
>> Den 5 jul 2014 16:22 skrev Brad Bendy <brad.bendy at gmail.com>:
>>
>>
>>>
>>> Haha, yeah never have been a Fedora fan, and nothing has changed. Is
>>> the only big feature im missing out on is snapshots? From what I can
>>> tell, and in my testing, everything else seems to work. Was deploying
>>> GlusterFS but without the live migration to another host that is
>>> somewhat defeated.
>>
>> VM live migration works, live _disk_ migration does not.
>>
>>> Only way to get that is with RHEL really then?
>>
>> No, as I earlier pointed out, there is a place you can get the packages you
>> need for CentOS:
>> http://jenkins.ovirt.org/view/All/job/qemu-kvm-rhev_create-rpms_el6/lastStableBuild/
>>
>> You'll have to download- and force install them over the already installed
>> versions of those packages on all Hosts and then it'll work.
>>
>> Though, next time there are updates, yum will update from the standard repos
>> and it just stops working again until you repeat the procedure.
>>
>> /K
>>
>>>
>>> On Sat, Jul 5, 2014 at 7:05 AM, Karli Sjöberg <Karli.Sjoberg at slu.se>
>>> wrote:
>>> >
>>> > Den 5 jul 2014 15:57 skrev Brad Bendy <brad.bendy at gmail.com>:
>>> >
>>> >
>>> >>
>>> >> If I use Fedora will "everything" work? I had numerous issues, IIRC I
>>> >> could not even get the ovirtmgmt switch to install and a few other
>>> >> things. What version of Fedora do you recommend then?
>>> >
>>> > None:) We switched long ago to CentOS and have never looked back, even
>>> > with
>>> > these issues. Not worth the headache that is Fedora.
>>> >
>>> > /K
>>> >
>>> >> Ill do another
>>> >> install and give that a whirl again.
>>> >>
>>> >> Thanks!
>>> >>
>>> >> On Fri, Jul 4, 2014 at 10:33 PM, Karli Sjöberg <Karli.Sjoberg at slu.se>
>>> >> wrote:
>>> >> >
>>> >> > Den 5 jul 2014 07:04 skrev Brad Bendy <brad.bendy at gmail.com>:
>>> >> >>
>>> >> >> Hi,
>>> >> >>
>>> >> >> Ive seeing conflicting info with what version of qemu rpms are
>>> >> >> needed
>>> >> >> to do live migration under CentOS. It appears the stock ones will
>>> >> >> not
>>> >> >> work and the RHEV ones are required. All the mailing list post I see
>>> >> >> are from 3-4 months ago, so not sure.
>>> >> >>
>>> >> >> Im getting VDSGenericException: VDSErrorException: Failed to
>>> >> >> SnapshotVDS, error = Snapshot failed, code = 48 (Failed with error
>>> >> >> SNAPSHOT_FAILED and code 48)
>>> >> >>
>>> >> >> I also saw this thread:
>>> >> >> http://comments.gmane.org/gmane.linux.centos.general/138593
>>> >> >>
>>> >> >> Ive been having issues getting those to install, but before I spent
>>> >> >> to
>>> >> >> much more time I wanted to really see if I was on the right track.
>>> >> >>
>>> >> >> Is there a better OS choice? I first started trying with Fedora 19
>>> >> >> and
>>> >> >> 20 and has major issues, went to CentOS 6.5 and this is the first
>>> >> >> and
>>> >> >> only issue so far ive ran into.
>>> >> >>
>>> >> >> Thanks!
>>> >> >> _______________________________________________
>>> >> >> Users mailing list
>>> >> >> Users at ovirt.org
>>> >> >> http://lists.ovirt.org/mailman/listinfo/users
>>> >> >
>>> >> > Well, going with Fedora would at least get you the snapshots working,
>>> >> > if
>>> >> > I remember correctly, but that's not something you run in production.
>>> >> > As you
>>> >> > said, "major issues".
>>> >> >
>>> >> > For CentOS, you need "special" versions of certain packages, since
>>> >> > RedHat wants you to pay for RHEV, they have chosen to cripple the
>>> >> > standard
>>> >> > packages so those features won't work:
>>> >> > http://lists.ovirt.org/pipermail/devel/2014-June/007735.html
>>> >> >
>>> >> > And here you can find the packages you need:
>>> >> >
>>> >> >
>>> >> > http://jenkins.ovirt.org/view/All/job/qemu-kvm-rhev_create-rpms_el6/lastStableBuild/
>>> >> >
>>> >> > /K