PVE-Zsync problem

[tortonness]

Hi

i have 2 servers set up with proxmox 4.4

i installed pve-zsync on both of them.
then i created a VM on one of the servers(172.30.1.144) and want to sync this VM to the Zfs filesystem on server 2(172.30.1.145)
Zfs list
NAME USED AVAIL REFER MOUNTPOINT
Zpool1 120k 806G 20k /Zpool1
zpool1/backup 8k 806G 8K -

i ran this command on server1(172.30.1.144):
pve-sync create --source 100 --dest 172.30.1.145:Zpool1/backup --verbose --maxsnap 7 --name testsnap

It then asks me for the password and i write the root password for server 2(have to do this two times), but then it returns: ERROR: in path

but there is no error. not sure what is wrong here?

 

[wolfgang]

Hi,

zfs path are default case sensitive.

So the correct path is
"172.30.1.145:zpool1/backup" and
172.30.1.145:Zpool1/backup is wrong.

 

[tortonness]

Yes i see that. i guess you got confused since i used capitol and small letters in my explenation. If i use wrong letters it just returns: zpool Zpool1/backup does not exist, so the path is ok as far as i can see but still it returns: ERROR: In path . Could it be something with the way i set up the zpool?. hmmm

 

[wolfgang]

can't say what the problem is without the vm config.

 

[tortonness]

ok. i uploaded the vm config for vm100.

this is the textprintout of the VM:
bootdisk: ide0
cores: 2
ide0: local-lvm:vm-100-disk-1,size=32G
ide2: none,media=cdrom
memory: 5032
name: test
net0: e1000=12:59:BB:3D:3A:3A,bridge=vmbr0
numa: 0
ostype: win8
scsihw: virtio-scsi-pci
smbios1: uuid=9c206640-796c-4225-a51f-3bcbe97798a6
sockets: 1

if you are up for it i can get you a teamviewer on a computer in wich you can reach both servers webgui.

 

[wolfgang]

pve-zsync can only be used if you have ZFS as storage backend.
This does not work with Thin-LVM.

 

[tortonness]

ok so i guess i have to reinstall proxmox then and use Zfs?.

 

[tortonness]

Never mind. i see what you mean

 

[tortonness]

I got it working now, however i see that the syncjob runs every 15minutes by itself when active. is there anywhere i can tune it so that it runs 1 time every day?.

 

[wolfgang]

You can edit
/etc/cron.d/pve-zsync
it is a normal cronjob

 

[tortonness]

Yes i figured. thanks allot for your help

 

[tortonness]

By the way is there any way to do a more granulated snapshot schedule then just a sequenced timetable?. what i mean is that it would be great to be able to have a snapshot at 15minutes, 1hour, 5hours, 10hours, 1every weekday, 1month if you understand?. In the cronjob i dont have that abillity, just a sequenced time.

 

[wolfgang]

No you have only the cron as timer.

 

[tonci]

Hello to all,
unfortunately I have the same (error: in path) issue and cannot figure out why. Almost the same scenario :
My hosts make in 3-node cluster. I want to use pve-zsync in order to do periodical fast incremental backups , what is not possible to achive with classical vzdump.

1. this is the source vm conf:
bootdisk: virtio0
cores: 2
ide2: rn314:iso/ubuntu-16.04.3-server-amd64.iso,media=cdrom
memory: 1024
name: u1604server-zfs
net0: virtio=1A:5D:FC:7C:FC:98,bridge=vmbr1
numa: 0
ostype: l26
scsihw: virtio-scsi-pci
smbios1: uuid=ba277e4f-9bc4-455b-bf9c-a8c96bb32391
sockets: 1
vga: qxl
virtio0: zfs1:vm-70020-disk-1,size=7G
/etc/pve/qemu-server/70020.conf (END)

2. this is the destination zpool (on server 10.20.28.4):
root@pvesuma03:~# zfs list
NAME USED AVAIL REFER MOUNTPOINT
bckpool 444K 449G 96K /bckpool
bckpool/backup 96K 449G 96K /bckpool/backup
root@pvesuma03:~#



3. this is the command I run on the "source" node:
root@pvesuma01:~# pve-zsync create -source 70020 -dest 10.20.28.4:bckpool/backup --verbose --maxsnap 7 --name bck1
ERROR: in path
root@pvesuma01:~#

latest pve is running

proxmox-ve: 5.2-2 (running kernel: 4.15.17-3-pve) pve-manager: 5.2-2 (running version: 5.2-2/b1d1c7f4) pve-kernel-4.15: 5.2-3 pve-kernel-4.13: 5.1-45 pve-kernel-4.15.17-3-pve: 4.15.17-13 pve-kernel-4.15.17-2-pve: 4.15.17-10 pve-kernel-4.15.17-1-pve: 4.15.17-9 pve-kernel-4.15.15-1-pve: 4.15.15-6 pve-kernel-4.13.16-3-pve: 4.13.16-49 pve-kernel-4.13.16-2-pve: 4.13.16-48 pve-kernel-4.13.16-1-pve: 4.13.16-46 pve-kernel-4.13.13-6-pve: 4.13.13-42 pve-kernel-4.13.13-5-pve: 4.13.13-38 pve-kernel-4.13.13-4-pve: 4.13.13-35 pve-kernel-4.13.13-2-pve: 4.13.13-33 pve-kernel-4.13.13-1-pve: 4.13.13-31 pve-kernel-4.13.8-3-pve: 4.13.8-30 pve-kernel-4.13.8-2-pve: 4.13.8-28 pve-kernel-4.13.4-1-pve: 4.13.4-26 pve-kernel-4.10.17-4-pve: 4.10.17-24 pve-kernel-4.10.17-3-pve: 4.10.17-23 pve-kernel-4.10.17-2-pve: 4.10.17-20 pve-kernel-4.10.17-1-pve: 4.10.17-18 pve-kernel-4.10.15-1-pve: 4.10.15-15 pve-kernel-4.4.67-1-pve: 4.4.67-92 pve-kernel-4.4.62-1-pve: 4.4.62-88 pve-kernel-4.4.59-1-pve: 4.4.59-87 pve-kernel-4.4.49-1-pve: 4.4.49-86 pve-kernel-4.4.44-1-pve: 4.4.44-84 pve-kernel-4.4.40-1-pve: 4.4.40-82 pve-kernel-4.4.35-2-pve: 4.4.35-79 pve-kernel-4.4.35-1-pve: 4.4.35-77 pve-kernel-4.4.24-1-pve: 4.4.24-72 pve-kernel-4.4.21-1-pve: 4.4.21-71 pve-kernel-4.4.19-1-pve: 4.4.19-66 pve-kernel-4.4.16-1-pve: 4.4.16-64 pve-kernel-4.4.15-1-pve: 4.4.15-60 pve-kernel-4.4.13-2-pve: 4.4.13-58 pve-kernel-4.4.13-1-pve: 4.4.13-56 pve-kernel-4.4.10-1-pve: 4.4.10-54 pve-kernel-4.2.6-1-pve: 4.2.6-36 corosync: 2.4.2-pve5 criu: 2.11.1-1~bpo90 glusterfs-client: 3.8.8-1 ksm-control-daemon: 1.2-2 libjs-extjs: 6.0.1-2 libpve-access-control: 5.0-8 libpve-apiclient-perl: 2.0-4 libpve-common-perl: 5.0-33 libpve-guest-common-perl: 2.0-16 libpve-http-server-perl: 2.0-9 libpve-storage-perl: 5.0-23 libqb0: 1.0.1-1 lvm2: 2.02.168-pve6 lxc-pve: 3.0.0-3 lxcfs: 3.0.0-1 novnc-pve: 1.0.0-1 openvswitch-switch: 2.7.0-2 proxmox-widget-toolkit: 1.0-19 pve-cluster: 5.0-27 pve-container: 2.0-23 pve-docs: 5.2-4 pve-firewall: 3.0-12 pve-firmware: 2.0-4 pve-ha-manager: 2.0-5 pve-i18n: 1.0-6 pve-libspice-server1: 0.12.8-3 pve-qemu-kvm: 2.11.1-5 pve-xtermjs: 1.0-5 pve-zsync: 1.6-16 qemu-server: 5.0-28 smartmontools: 6.5+svn4324-1 spiceterm: 3.0-5 vncterm: 1.5-3 zfsutils-linux: 0.7.9-pve1~bpo9


I have no idea so far what could cause such response/error

Thank you very much in advance for you help

BR
Tonci

 

[wolfgang]

Hi tonci,

what you get if you call

pvesm path zfs1:vm-70020-disk-1,size=7G

 

[tonci]

Hi Wolfgang,

here we go:

root@pvesuma01:~# pvesm path zfs1:vm-70020-disk-1,size=7G
/dev/zvol/pool1zfs/vm-70020-disk-1,size=7G
root@pvesuma01:~#

 

[wolfgang]

I can't reproduce this here.
You must have something else in your system.
Can you send the output from the source node of

zfs list

 

[tonci]

Hello

source node:
root@pvesuma01:~# zfs list
NAME USED AVAIL REFER MOUNTPOINT
pool1zfs 7.23G 442G 96K /pool1zfs
pool1zfs/vm-70020-disk-1 7.22G 446G 3.05G -
root@pvesuma01:~#

dest node:
root@pvesuma03:~# zfs list
NAME USED AVAIL REFER MOUNTPOINT
bckpool 744K 449G 96K /bckpool
bckpool/backup 96K 449G 96K /bckpool/backup
root@pvesuma03:~#

maybe something with mount points is not good ?

i.e. if I mistype dest pool :
root@pvesuma01:~# pve-zsync create -source 70020 -dest 10.20.28.4:bckpool/backup2 --verbose --maxsnap 7 --name bck1
Pool bckpool/backup2 does not exists
root@pvesuma01:~#


BR
Tonci

 

[wolfgang]

No the error you get has something to do with the source.
The source is in your case a zvol, so there are no mount points.

I think something about the formation or local settings.
What language settings do you use at the source server?

 

[tonci]

root@pvesuma01:~# env | grep LANG
LANG=en_US.UTF-8
root@pvesuma01:~#