[PVE-User] Backup failure: 'query-backup' failed on a single node

Yannis Milios yannis.milios at gmail.com
Tue Sep 17 10:31:31 CEST 2013


I did some tests on 2 different NFS,SMB shares and I had the same very slow
backup performance.
Then I reverted from *pve-kernel-2.6.32-23-pve *to *pve-kernel-2.6.32-20-pve
*and the backup
performance got back to normal speed.

Yannis Milios
 ------------------
Systems Administrator
Mob. 0030 6932-657-029
Tel.   0030 211-800-1230
E-mail. yannis.milios at gmail.com





On Mon, Sep 16, 2013 at 10:45 AM, Yannis Milios <yannis.milios at gmail.com>wrote:

> Hello list,
>
> I have a single node running a single vm (win2k3).
> It was working fine on Proxmox 2.3.I upgraded this box to 3.1 last week by
> following:
> http://pve.proxmox.com/wiki/Upgrade_from_2.3_to_3.0.
> All went smooth, except that backup is not completed for some reason.
> I have a local nfs mount on a NAS device which I use as a backup target:
>
> root at proxmox1:~# df -h
> Filesystem                     Size  Used Avail Use% Mounted on
> udev                            10M     0   10M   0% /dev
> tmpfs                          194M  1.5M  192M   1% /run
> /dev/mapper/pve-root            28G   16G   11G  60% /
> tmpfs                          5.0M     0  5.0M   0% /run/lock
> tmpfs                          387M   22M  366M   6% /run/shm
> /dev/mapper/pve-data            65G  9.8G   55G  16% /var/lib/vz
> /dev/sda1                      495M  123M  348M  27% /boot
> /dev/fuse                       30M   16K   30M   1% /etc/pve
> *192.168.0.203:/VOLUME1/PUBLIC  442G  198G  244G  45% /mnt/pve/nfs1*
> *
> *
> The error I am receiving is:
>
> *VM 101 qmp command 'query-backup' failed - client closed connection*
> *
> *
> What I've noticed is that if even if I invoke a manual backup job, the
> process starts but it takes forever and then stops with the above message.
> During this time, if I ping the node I get very high response time and
> some times it is near inaccessible.
> I did a test to write a 100mb file at nfs mount:
>
> *root at proxmox1:~# dd if=/dev/zero of=/mnt/pve/nfs1/test.raw bs=1M
> count=100*
> *100+0 records in*
> *100+0 records out*
> *104857600 bytes (105 MB) copied, 340.931 s, 308 kB/s*
> *
> *
> Seems that for some reason the machine has a hard time communicating with
> NAS device.The strange thing is that before upgrade there was no problem.
> Could it be a nic driver issue? I'm providing some more info if could
> anyone help:
>
>
> *root at proxmox1:~# pveversion -v*
> *proxmox-ve-2.6.32: 3.1-109 (running kernel: 2.6.32-23-pve)*
> *pve-manager: 3.1-3 (running version: 3.1-3/dc0e9b0e)*
> *pve-kernel-2.6.32-20-pve: 2.6.32-100*
> *pve-kernel-2.6.32-16-pve: 2.6.32-82*
> *pve-kernel-2.6.32-17-pve: 2.6.32-83*
> *pve-kernel-2.6.32-18-pve: 2.6.32-88*
> *pve-kernel-2.6.32-23-pve: 2.6.32-109*
> *lvm2: 2.02.98-pve4*
> *clvm: 2.02.98-pve4*
> *corosync-pve: 1.4.5-1*
> *openais-pve: 1.1.4-3*
> *libqb0: 0.11.1-2*
> *redhat-cluster-pve: 3.2.0-2*
> *resource-agents-pve: 3.9.2-4*
> *fence-agents-pve: 4.0.0-1*
> *pve-cluster: 3.0-7*
> *qemu-server: 3.1-1*
> *pve-firmware: 1.0-23*
> *libpve-common-perl: 3.0-6*
> *libpve-access-control: 3.0-6*
> *libpve-storage-perl: 3.0-10*
> *pve-libspice-server1: 0.12.4-1*
> *vncterm: 1.1-4*
> *vzctl: 4.0-1pve3*
> *vzprocps: 2.0.11-2*
> *vzquota: 3.1-2*
> *pve-qemu-kvm: 1.4-17*
> *ksm-control-daemon: 1.1-1*
> *glusterfs-client: 3.4.0-2*
>
>
> *root at proxmox1:~# tail /var/log/kern.log*
> *Sep 16 02:35:11 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
> *Sep 16 10:18:47 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
> *Sep 16 10:19:35 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
> *Sep 16 10:20:05 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
> *Sep 16 10:20:35 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
> *Sep 16 10:20:59 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
> *Sep 16 10:21:41 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
> *Sep 16 10:22:05 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
> *Sep 16 10:22:41 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
> *Sep 16 10:23:11 proxmox1 kernel: r8169 0000:02:00.0: eth0: link up*
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