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

Holger Hampel | RA Consulting h.hampel at rac.de
Tue Sep 17 10:58:24 CEST 2013


Hello,

Check link speed with "ethtool eth0" - after upgrade to 3.1 I had a polite dmesg message "Link speed was downgraded by SmartSpeed" (e1000e driver). Reboot helped for me.

Regards
Holger Hampel 

-----Urspr√ľngliche Nachricht-----
Von: pve-user-bounces at pve.proxmox.com [mailto:pve-user-bounces at pve.proxmox.com] Im Auftrag von Yannis Milios
Gesendet: Dienstag, 17. September 2013 10:32
An: pve-user at pve.proxmox.com
Betreff: Re: [PVE-User] Backup failure: 'query-backup' failed on a singlenode

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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