[ovirt-users] Ovirt backups lead to unresponsive VM

[Yaniv Kaul]

On Feb 3, 2018 3:24 PM, "Alex K" <rightkicktech at gmail.com> wrote:

Hi All,

I have reproduced the backups failure. The VM that failed is named
Win-FileServer and is a Windows 2016 server 64bit with 300GB of disk.
During the cloning step the VM went unresponsive and I had to stop/start
it.
I am attaching the logs.I have another VM with same OS (named DC-Server
within the logs) but with smaller disk (60GB) which does not give any error
when it is cloned.
I see a line:

EVENT_ID: VDS_BROKER_COMMAND_FAILURE(10,802), Correlation ID: null, Call
Stack: null, Custom ID: null, Custom Event ID: -1, Message: VDSM
v2.sitedomain command SnapshotVDS failed: Message timeout which can be
caused by communication issues


I suggest adding relevant vdsm.log as well.
Y.


I appreciate any advise why I am facing such issue with the backups.

thanx,
Alex

On Tue, Jan 30, 2018 at 12:49 AM, Alex K <rightkicktech at gmail.com> wrote:

> Ok. I will reproduce and collect logs.
>
> Thanx,
> Alex
>
> On Jan 29, 2018 20:21, "Mahdi Adnan" <mahdi.adnan at outlook.com> wrote:
>
> I have Windows VMs, both client and server.
> if you provide the engine.log file we might have a look at it.
>
>
> --
>
> Respectfully
> *Mahdi A. Mahdi*
>
> ------------------------------
> *From:* Alex K <rightkicktech at gmail.com>
> *Sent:* Monday, January 29, 2018 5:40 PM
> *To:* Mahdi Adnan
> *Cc:* users
> *Subject:* Re: [ovirt-users] Ovirt backups lead to unresponsive VM
>
> Hi,
>
> I have observed this logged at host when the issue occurs:
>
> VDSM command GetStoragePoolInfoVDS failed: Connection reset by peer
>
> or
>
> VDSM host.domain command GetStatsVDS failed: Connection reset by peer
>
> At engine logs have not been able to correlate.
>
> Are you hosting Windows 2016 server and Windows 10 VMs?
> The weird is that I have same setup on other clusters with no issues.
>
> Thanx,
> Alex
>
> On Sun, Jan 28, 2018 at 9:21 PM, Mahdi Adnan <mahdi.adnan at outlook.com>
> wrote:
>
> Hi,
>
> We have a cluster of 17 nodes, backed by GlusterFS storage, and using this
> same script for backup.
> we have no issues with it so far.
> have you checked engine log file ?
>
>
> --
>
> Respectfully
> *Mahdi A. Mahdi*
>
> ------------------------------
> *From:* users-bounces at ovirt.org <users-bounces at ovirt.org> on behalf of
> Alex K <rightkicktech at gmail.com>
> *Sent:* Wednesday, January 24, 2018 4:18 PM
> *To:* users
> *Subject:* [ovirt-users] Ovirt backups lead to unresponsive VM
>
> Hi all,
>
> I have a cluster with 3 nodes, using ovirt 4.1 in a self hosted setup on
> top glusterfs.
> On some VMs (especially one Windows server 2016 64bit with 500 GB of
> disk). Guest agents are installed at VMs. i almost always observe that
> during the backup of the VM the VM is rendered unresponsive (dashboard
> shows a question mark at the VM status and VM does not respond to ping or
> to anything).
>
> For scheduled backups I use:
>
> https://github.com/wefixit-AT/oVirtBackup
>
> The script does the following:
>
> 1. snapshot VM (this is done ok without any failure)
>
> 2. Clone snapshot (this steps renders the VM unresponsive)
>
> 3. Export Clone
>
> 4. Delete clone
>
> 5. Delete snapshot
>
>
> Do you have any similar experience? Any suggestions to address this?
>
> I have never seen such issue with hosted Linux VMs.
>
> The cluster has enough storage to accommodate the clone.
>
>
> Thanx,
>
> Alex
>
>
>
>
>
>

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