[Users] oVirt 3.3.3 RC EL6 Live Snapshot
Steve Dainard
sdainard at miovision.com
Mon Feb 3 11:49:11 EST 2014
FYI I'm running version 3.3.2, not the 3.3.3 beta.
*Steve Dainard *
IT Infrastructure Manager
Miovision <http://miovision.com/> | *Rethink Traffic*
519-513-2407 ex.250
877-646-8476 (toll-free)
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Canada | N2C 1L3
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On Mon, Feb 3, 2014 at 11:24 AM, Dafna Ron <dron at redhat.com> wrote:
> Thanks Steve.
>
> from the logs I can see that the create snapshot succeeds and that the vm
> is resumed.
> the vm moves to pause as part of libvirt flows:
>
> 2014-02-02 14:41:20.872+0000: 5843: debug : qemuProcessHandleStop:728 :
> Transitioned guest snapshot-test to paused state
> 2014-02-02 14:41:30.031+0000: 5843: debug : qemuProcessHandleResume:776 :
> Transitioned guest snapshot-test out of paused into resumed state
>
> There are bugs here but I am not sure yet if this is libvirt regression or
> engine.
>
> I'm adding Elad and Maor since in engine logs I can't see anything calling
> for live snapshot (only for snapshot) - Maor, shouldn't live snapshot
> command be logged somewhere in the logs?
> Is it possible that engine is calling to create snapshot and not create
> live snapshot which is why the vm pauses?
>
> Elad, if engine is not logging live snapshot anywhere I would open a bug
> for engine (to print that in the logs).
> Also, there is a bug in vdsm log for sdc where the below is logged as
> ERROR and not INFO:
>
> Thread-23::ERROR::2014-02-02 09:51:19,497::sdc::137::
> Storage.StorageDomainCache::(_findDomain) looking for unfetched domain
> a52938f7-2cf4-4771-acb2-0c78d14999e5
> Thread-23::ERROR::2014-02-02 09:51:19,497::sdc::154::
> Storage.StorageDomainCache::(_findUnfetchedDomain) looking for domain
> a52938f7-2cf4-4771-acb2-0c78d14999e5
>
> If the engine was sending live snapshot or if there is no difference in
> the two commands in engine side than I would open a bug for libvirt for
> pausing the vm during live snapshot.
>
> Dafna
>
>
> On 02/03/2014 02:41 PM, Steve Dainard wrote:
>
>> [root at ovirt002 ~]# vdsClient -s 0 getStorageDomainInfo
>> a52938f7-2cf4-4771-acb2-0c78d14999e5
>> uuid = a52938f7-2cf4-4771-acb2-0c78d14999e5
>> pool = ['fcb89071-6cdb-4972-94d1-c9324cebf814']
>> lver = 5
>> version = 3
>> role = Master
>> remotePath = gluster-store-vip:/rep1
>> spm_id = 2
>> type = NFS
>> class = Data
>> master_ver = 1
>> name = gluster-store-rep1
>>
>>
>> *Steve Dainard *
>> IT Infrastructure Manager
>> Miovision <http://miovision.com/> | /Rethink Traffic/
>> 519-513-2407 ex.250
>> 877-646-8476 (toll-free)
>>
>> *Blog <http://miovision.com/blog> | **LinkedIn <https://www.linkedin.com/
>> company/miovision-technologies> | Twitter <https://twitter.com/miovision>
>> | Facebook <https://www.facebook.com/miovision>*
>> ------------------------------------------------------------------------
>> Miovision Technologies Inc. | 148 Manitou Drive, Suite 101, Kitchener,
>> ON, Canada | N2C 1L3
>> This e-mail may contain information that is privileged or confidential.
>> If you are not the intended recipient, please delete the e-mail and any
>> attachments and notify us immediately.
>>
>>
>> On Sun, Feb 2, 2014 at 2:55 PM, Dafna Ron <dron at redhat.com <mailto:
>> dron at redhat.com>> wrote:
>>
>> please run vdsClient -s 0 getStorageDomainInfo
>> a52938f7-2cf4-4771-acb2-0c78d14999e5
>>
>> Thanks,
>>
>> Dafna
>>
>>
>>
>> On 02/02/2014 03:02 PM, Steve Dainard wrote:
>>
>> Logs attached with VM running on qemu-kvm-rhev packages installed.
>>
>> *Steve Dainard *
>> IT Infrastructure Manager
>> Miovision <http://miovision.com/> | /Rethink Traffic/
>> 519-513-2407 <tel:519-513-2407> ex.250
>>
>> 877-646-8476 <tel:877-646-8476> (toll-free)
>>
>>
>> *Blog <http://miovision.com/blog> | **LinkedIn
>> <https://www.linkedin.com/company/miovision-technologies> |
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>> <https://www.facebook.com/miovision>*
>> ------------------------------------------------------------
>> ------------
>> Miovision Technologies Inc. | 148 Manitou Drive, Suite 101,
>> Kitchener, ON, Canada | N2C 1L3
>> This e-mail may contain information that is privileged or
>> confidential. If you are not the intended recipient, please
>> delete the e-mail and any attachments and notify us immediately.
>>
>>
>> On Sun, Feb 2, 2014 at 5:05 AM, Dafna Ron <dron at redhat.com
>> <mailto:dron at redhat.com> <mailto:dron at redhat.com
>>
>> <mailto:dron at redhat.com>>> wrote:
>>
>> can you please upload full engine, vdsm, libvirt and vm's
>> qemu logs?
>>
>>
>> On 02/02/2014 02:08 AM, Steve Dainard wrote:
>>
>> I have two CentOS 6.5 Ovirt hosts (ovirt001, ovirt002)
>>
>> I've installed the applicable qemu-kvm-rhev packages
>> from this
>> site: http://www.dreyou.org/ovirt/vdsm32/Packages/ on
>> ovirt002.
>>
>> On ovirt001 if I take a live snapshot:
>>
>> Snapshot 'test qemu-kvm' creation for VM
>> 'snapshot-test' was
>> initiated by admin at internal.
>> The VM is paused
>> Failed to create live snapshot 'test qemu-kvm' for VM
>> 'snapshot-test'. VM restart is recommended.
>> Failed to complete snapshot 'test qemu-kvm' creation
>> for VM
>> 'snapshot-test'.
>> The VM is then started, and the status for the snapshot
>> changes to OK.
>>
>> On ovirt002 (with the packages from dreyou) I don't
>> get any
>> messages about a snapshot failing, but my VM is still
>> paused
>> to complete the snapshot. Is there something else
>> other than
>> the qemu-kvm-rhev packages that would enable this
>> functionality?
>>
>> I've looked for some information on when the packages
>> would be
>> built as required in the CentOS repos, but I don't see
>> anything definitive.
>>
>> http://lists.ovirt.org/pipermail/users/2013-December/019126.html
>> Looks like one of the maintainers is waiting for
>> someone to
>> tell him what flags need to be set.
>>
>> Also, another thread here:
>> http://comments.gmane.org/gmane.comp.emulators.ovirt.arch/1618
>> same maintainer, mentioning that he hasn't seen
>> anything in
>> the bug tracker.
>>
>> There is a bug here:
>> https://bugzilla.redhat.com/show_bug.cgi?id=1009100 that seems
>> to have ended in finding a way for qemu to expose
>> whether it
>> supports live snapshots, rather than figuring out how
>> to get
>> the CentOS team the info they need to build the
>> packages with
>> the proper flags set.
>>
>> I have bcc'd both dreyou (packaged the qemu-kvm-rhev
>> packages
>> listed above) and Russ (CentOS maintainer mentioned in the
>> other threads) if they wish to chime in and perhaps
>> collaborate on which flags, if any, should be set for the
>> qemu-kvm builds so we can get a CentOS bug report
>> going and
>> hammer this out.
>>
>> Thanks everyone.
>>
>> **crosses fingers and hopes for live snapshots soon**
>>
>>
>>
>> *Steve Dainard *
>> IT Infrastructure Manager
>> Miovision <http://miovision.com/> | /Rethink Traffic/
>> 519-513-2407 <tel:519-513-2407> <tel:519-513-2407
>> <tel:519-513-2407>> <tel:519-513-2407 <tel:519-513-2407>
>> <tel:519-513-2407 <tel:519-513-2407>>> ex.250
>>
>> 877-646-8476 <tel:877-646-8476> <tel:877-646-8476
>> <tel:877-646-8476>> <tel:877-646-8476 <tel:877-646-8476>
>>
>> <tel:877-646-8476 <tel:877-646-8476>>> (toll-free)
>>
>>
>> *Blog <http://miovision.com/blog> | **LinkedIn
>> <https://www.linkedin.com/
>> company/miovision-technologies> |
>> Twitter <https://twitter.com/miovision> | Facebook
>> <https://www.facebook.com/miovision>*
>> ------------------------------
>> ------------------------------------------
>>
>>
>> Miovision Technologies Inc. | 148 Manitou Drive, Suite
>> 101,
>> Kitchener, ON, Canada | N2C 1L3
>> This e-mail may contain information that is privileged or
>> confidential. If you are not the intended recipient,
>> please
>> delete the e-mail and any attachments and notify us
>> immediately.
>>
>>
>> On Fri, Jan 31, 2014 at 1:26 PM, Steve Dainard
>> <sdainard at miovision.com
>> <mailto:sdainard at miovision.com> <mailto:sdainard at miovision.com
>> <mailto:sdainard at miovision.com>>
>> <mailto:sdainard at miovision.com
>> <mailto:sdainard at miovision.com>
>>
>> <mailto:sdainard at miovision.com
>> <mailto:sdainard at miovision.com>>>> wrote:
>>
>>
>> How would you developers, speaking for the
>> oVirt-community,
>> propose to
>> solve this for CentOS _now_ ?
>>
>> I would imagine that the easiest way is that
>> you build and
>> host this one
>> package(qemu-kvm-rhev), since you´ve basically
>> already
>> have
>> the source
>> and recipe (since you´re already providing it
>> for RHEV
>> anyway). Then,
>> once that´s in place, it´s more a question of
>> where to
>> host the
>> packages, in what repository. Be it your own,
>> or some
>> other
>> repo set up
>> for the SIG.
>>
>> This is my view, how I as a user view this issue.
>>
>>
>>
>> I think this is a pretty valid view.
>>
>> What would it take to get the correct qemu package
>> hosted
>> in the
>> ovirt repo?
>>
>> --
>>
>> Med Vänliga Hälsningar
>>
>> ------------------------------
>> -------------------------------------------------
>> Karli Sjöberg
>> Swedish University of Agricultural Sciences
>> Box 7079
>> (Visiting
>> Address
>> Kronåsvägen 8)
>> S-750 07 Uppsala, Sweden
>> Phone: +46-(0)18-67 15 66
>> <tel:%2B46-%280%2918-67%2015%2066>
>> <tel:%2B46-%280%2918-67%2015%2066>
>> <tel:%2B46-%280%2918-67%2015%2066>
>> karli.sjoberg at slu.se <mailto:karli.sjoberg at slu.se>
>> <mailto:karli.sjoberg at slu.se <mailto:karli.sjoberg at slu.se>>
>> <mailto:karli.sjoberg at slu.se
>> <mailto:karli.sjoberg at slu.se> <mailto:karli.sjoberg at slu.se
>> <mailto:karli.sjoberg at slu.se>>>
>>
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>>
>>
>> -- Dafna Ron
>>
>>
>>
>>
>> -- Dafna Ron
>>
>>
>>
>
> --
> Dafna Ron
>
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