libvirt users - Aug 2020 - Constant error logging

Hi all,

  I've got a (pacemaker + drbd) cluster running VMs. When the VM is
running on another node, the local storage is Secondary, meaning that it
can't be read or otherwise touched. As such, virsh thinks there is no
storage and constantly prints errors like:

===Aug 14 19:25:24 mk-a02n01.digimer.ca libvirtd[1655]: 2020-08-14
23:25:24.812+0000: 1679: error : qemuOpenFileAs:3119 : Failed to open
file '/dev/drbd/by-res/srv01-sql/0': No such file or directory
Aug 14 19:25:24 mk-a02n01.digimer.ca libvirtd[1655]: 2020-08-14
23:25:24.812+0000: 1679: error : qemuOpenFileAs:3119 : Failed to open
file '/dev/drbd/by-res/srv01-sql/1': No such file or directory
Aug 14 19:25:24 mk-a02n01.digimer.ca libvirtd[1655]: 2020-08-14
23:25:24.812+0000: 1679: error : qemuOpenFileAs:3119 : Failed to open
file '/dev/drbd/by-res/srv07-el6/0': Wrong medium type
==
  To the system logs (journald), about once every second or two.

  Is there any way to tell libvirtd not to complain about this?

Thanks

-- 
Digimer
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"I am, somehow, less interested in the weight and convolutions of
Einstein’s brain than in the near certainty that people of equal talent
have lived and died in cotton fields and sweatshops." - Stephen Jay Gould

On Fri, Aug 14, 2020 at 19:32:38 -0400, Digimer wrote:
> Hi all,
> 
>   I've got a (pacemaker + drbd) cluster running VMs. When the VM is
> running on another node, the local storage is Secondary, meaning that it
> can't be read or otherwise touched. As such, virsh thinks there is no
> storage and constantly prints errors like:
> 
> ===> Aug 14 19:25:24 mk-a02n01.digimer.ca libvirtd[1655]: 2020-08-14
> 23:25:24.812+0000: 1679: error : qemuOpenFileAs:3119 : Failed to open
> file '/dev/drbd/by-res/srv01-sql/0': No such file or directory
> Aug 14 19:25:24 mk-a02n01.digimer.ca libvirtd[1655]: 2020-08-14
> 23:25:24.812+0000: 1679: error : qemuOpenFileAs:3119 : Failed to open
> file '/dev/drbd/by-res/srv01-sql/1': No such file or directory
> Aug 14 19:25:24 mk-a02n01.digimer.ca libvirtd[1655]: 2020-08-14
> 23:25:24.812+0000: 1679: error : qemuOpenFileAs:3119 : Failed to open
> file '/dev/drbd/by-res/srv07-el6/0': Wrong medium type
> ==> 
>   To the system logs (journald), about once every second or two.
> 
>   Is there any way to tell libvirtd not to complain about this?
Please capture also debug logs [1] around the time the message is logged
so that we can see when it's happening. Unfortunately
'qemuOpenFileAs'
is a somewhat universal helper.


[1] https://libvirt.org/kbase/debuglogs.html