Chris, what is the storage configuration? I was under the impression that
there was a bug preventing snapshots from working when using libgfapi on
gluster replica configurations. This is one of the main reasons why I have
been unable to implement libgfapi.
On Mon, Feb 3, 2020 at 10:53 AM Christoph Köhler <
koeh...@luis.uni-hannover.de> wrote:
> Hi,
>
> since we have updated to 4.3.7 and another cluster to 4.3.8 snapshots
> are not longer possible. In previous version all went well...
>
> ° libGfApi enabled
> ° gluster 6.7.1 on gluster-server and client
> ° libvirt-4.5.0-23.el7_7.3
>
> vdsm on a given node says:
>
> jsonrpc/2) [vds] prepared volume path:
> gluvol3/e54d835a-d8a5-44ae-8e17-fcba1c54e46f/images/1f43916a-bbf2-447b-b17d-ba22d4ec8c90/0e56d498-11d2-4f35-b781-a2e06d286eb8
>
> (clientIF:510)
>
> (jsonrpc/2) [virt.vm] (vmId='acdc31b5-082b-4a68-b586-02354a7fdd73')
> <?xml version='1.0' encoding='utf-8'?>
> <domainsnapshot><disks><disk name="sda" snapshot="external"
> type="network"><source
> name="gluvol3/e54d835a-d8a5-44ae-8e17-fcba1c54e46f/images/1f43916a-bbf2-447b-b17d-ba22d4ec8c90/0e56d498-11d2-4f35-b781-a2e06d286eb8"
>
> protocol="gluster" type="network"><host name="192.168.1
> 1.20" port="0" transport="tcp"
> /></source></disk></disks></domainsnapshot> (vm:4497)
>
> (jsonrpc/2) [virt.vm] (vmId='acdc31b5-082b-4a68-b586-02354a7fdd73')
> Disabling drive monitoring (drivemonitor:60)
>
> (jsonrpc/2) [virt.vm] (vmId='acdc31b5-082b-4a68-b586-02354a7fdd73')
> Freezing guest filesystems (vm:4268)
> WARN (jsonrpc/2) [virt.vm]
> (vmId='acdc31b5-082b-4a68-b586-02354a7fdd73') Unable to freeze guest
> filesystems: Guest agent is not responding: QEMU guest agent is not
> connected (vm:4273)
> INFO (jsonrpc/2) [virt.vm]
> (vmId='acdc31b5-082b-4a68-b586-02354a7fdd73') Taking a live snapshot
> (drives=sda, memory=True) (vm:4513)
> ...
> ...
>
> ERROR (jsonrpc/2) [virt.vm]
> (vmId='acdc31b5-082b-4a68-b586-02354a7fdd73') Unable to take snapshot
> (vm:4517)
> Traceback (most recent call last):
> File "/usr/lib/python2.7/site-packages/vdsm/virt/vm.py", line 4514,
> in snapshot
> self._dom.snapshotCreateXML(snapxml, snapFlags)
> File "/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py", line
> 100, in f
> ret = attr(*args, **kwargs)
> File
> "/usr/lib/python2.7/site-packages/vdsm/common/libvirtconnection.py",
> line 131, in wrapper
> ret = f(*args, **kwargs)
> File "/usr/lib/python2.7/site-packages/vdsm/common/function.py", line
> 94, in wrapper
> return func(inst, *args, **kwargs)
> File "/usr/lib64/python2.7/site-packages/libvirt.py", line 2620, in
> snapshotCreateXML
> if ret is None:raise libvirtError('virDomainSnapshotCreateXML()
> failed', dom=self)
> libvirtError: internal error: unable to execute QEMU command
> 'transaction': Could not read L1 table: Input/output error
> ...
> INFO (jsonrpc/2) [jsonrpc.JsonRpcServer] RPC call VM.snapshot failed
> (error 48) in 4.65 seconds (__init__:312)
>
> It seems that the origin is libvirt or qemu.
>
> Regards
> Chris
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