I have a strange error for vzdump. I searched in past threads, and this is the only similar, yet unsolved, issue happened before to others:
http://forum.proxmox.com/threads/915...1889#post51889
...sorry, this is a long, quite detailed post...
I did some "investigation", create some test cases, in order to find a solution myself (which unfortunately I have not been able to):
The issue is, vzdump fails to backup a fairly basic and absolutely idle CT depending on the CT storage or the backup storage in the sense that I have specifically this backup failing if either:
1) if the CT is created on a particular storage
2) if the backup of th CT is tried to a particular storage
and the "failing" storage is always the same. So I think it should be related to the storage or how it is mounted.
before all the rest, this is on pve 3.1-24 (will append pveversion -v output, and other data, at the bottom of the post)
more in detail, I have:
2 nodes cluster (pve1 and pve2, identical nodes, ibm x3650m2),
2 network NFS storages:
- pve_ts809, an old qnap nas (core2duo cpu), with old qnap firmware/kernel/software <-- this seems to work well
- pve_ts879 a new qnap nas (xeon cpu), with new qnap firmware/kernel/software <-- this seems to cause troubles
I can't get a clue of what is not working and why: in the storage.conf and mount output (see bottom of the post) I can see some differences but I didn't configure any of this parameters, they came out when I created the storage from pve gui, so I have no clue if some of them could be wrong, or at least causing troubles, and why. I just noted some differences...
eg, for what I can see:
in storage.conf
pve_ts879 has "options vers=3,tcp,nolock,rsize=262144,wsize=262144"
while
pve_ts809 has "options vers=3"
and in mount output, both as nfs:
/mnt/pve/pve_ts879 has (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,nolock,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=< ts879 IP>,mountvers=3,mountport=53850,mountproto=tcp,local_lock=all,addr=<ts879 IP>)
while
/mnt/pve/pve_ts809 gas (rw,relatime,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec =sys,mountaddr=<ts809 IP>,mountvers=3,mountport=905,mountproto=udp,local_lock=none,addr=<ts809 IP>)
That said, to test, I created 2 really basic brand new CT from the same template: ubuntu-12.04-standard_12.04-1_i386.tar.gz
CT 113 filesystem is on pve_ts879
CT 114 filesystem is on pve_ts809
both seem to be running fine
backup from gui for CT 114 works both to local and to pve_ts809, but FAILS to pve_ts879 (tried with CT running, LZO compression, snapshot mode)
backup from gui for CT 113 always FAILS to local, FAILS to pve_ts809, FAILS to pve_ts879, (tried with CT running or not, LZO/GZIP/none compression, all modes)
in the logs of the failing jobs, there is always some kind of recurring text (I can provide any example, but from what I see it happens always as you see below):
if CT are down (or stop mode), eg:
when CT are running, eg:
Can anyone help me to sort out this issue?
Marco
hosts/storage details
================================================== =========================
http://forum.proxmox.com/threads/915...1889#post51889
...sorry, this is a long, quite detailed post...
I did some "investigation", create some test cases, in order to find a solution myself (which unfortunately I have not been able to):
The issue is, vzdump fails to backup a fairly basic and absolutely idle CT depending on the CT storage or the backup storage in the sense that I have specifically this backup failing if either:
1) if the CT is created on a particular storage
2) if the backup of th CT is tried to a particular storage
and the "failing" storage is always the same. So I think it should be related to the storage or how it is mounted.
before all the rest, this is on pve 3.1-24 (will append pveversion -v output, and other data, at the bottom of the post)
more in detail, I have:
2 nodes cluster (pve1 and pve2, identical nodes, ibm x3650m2),
2 network NFS storages:
- pve_ts809, an old qnap nas (core2duo cpu), with old qnap firmware/kernel/software <-- this seems to work well
- pve_ts879 a new qnap nas (xeon cpu), with new qnap firmware/kernel/software <-- this seems to cause troubles
I can't get a clue of what is not working and why: in the storage.conf and mount output (see bottom of the post) I can see some differences but I didn't configure any of this parameters, they came out when I created the storage from pve gui, so I have no clue if some of them could be wrong, or at least causing troubles, and why. I just noted some differences...
eg, for what I can see:
in storage.conf
pve_ts879 has "options vers=3,tcp,nolock,rsize=262144,wsize=262144"
while
pve_ts809 has "options vers=3"
and in mount output, both as nfs:
/mnt/pve/pve_ts879 has (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,nolock,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=< ts879 IP>,mountvers=3,mountport=53850,mountproto=tcp,local_lock=all,addr=<ts879 IP>)
while
/mnt/pve/pve_ts809 gas (rw,relatime,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec =sys,mountaddr=<ts809 IP>,mountvers=3,mountport=905,mountproto=udp,local_lock=none,addr=<ts809 IP>)
That said, to test, I created 2 really basic brand new CT from the same template: ubuntu-12.04-standard_12.04-1_i386.tar.gz
CT 113 filesystem is on pve_ts879
CT 114 filesystem is on pve_ts809
both seem to be running fine
backup from gui for CT 114 works both to local and to pve_ts809, but FAILS to pve_ts879 (tried with CT running, LZO compression, snapshot mode)
backup from gui for CT 113 always FAILS to local, FAILS to pve_ts809, FAILS to pve_ts879, (tried with CT running or not, LZO/GZIP/none compression, all modes)
in the logs of the failing jobs, there is always some kind of recurring text (I can provide any example, but from what I see it happens always as you see below):
if CT are down (or stop mode), eg:
Code:
INFO: starting new backup job: vzdump 113 --remove 0 --mode stop --compress lzo --storage local --node pve2
...
INFO: creating archive '/var/lib/vz/dump/vzdump-openvz-113-2014_03_13-12_10_03.tar.lzo'
INFO: tar: ./etc/alternatives/: Cannot savedir: Too many levels of symbolic links
INFO: Total bytes written: 459663360 (439MiB, 58MiB/s)
INFO: tar: Exiting with failure status due to previous errors
INFO: Total bytes written: 459683840 (439MiB, 38MiB/s)
INFO: tar: Exiting with failure status due to previous errors
ERROR: Backup of VM 113 failed - command '(cd /mnt/pve/pve_ts879/private/113;find . '(' -regex '^\.$' ')' -o '(' -type 's' -prune ')' -o -print0|sed 's/\\/\\\\/g'|tar cpf - --totals --sparse --numeric-owner --no-recursion --one-file-system --null -T -|lzop) >/var/lib/vz/dump/vzdump-openvz-113-2014_03_13-12_12_50.tar.dat' failed: exit code 2
INFO: Backup job finished with errors
TASK ERROR: job errorsCode:
INFO: starting new backup job: vzdump 113 --remove 0 --mode snapshot --storage local --node pve2
...
INFO: starting first sync /mnt/pve/pve_ts879/private/113/ to /var/lib/vz/dump/vzdump-openvz-113-2014_03_13-12_11_34.tmp
INFO: rsync: readdir("/mnt/pve/pve_ts879/private/113/etc/alternatives"): Too many levels of symbolic links (40)
INFO: IO error encountered -- skipping file deletion
...
INFO: total size is 441560783 speedup is 1.00
INFO: rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1070) [sender=3.0.9]
ERROR: Backup of VM 113 failed - command 'rsync --stats -x --numeric-ids -aH --delete --no-whole-file --inplace '/mnt/pve/pve_ts879/private/113/' '/var/lib/vz/dump/vzdump-openvz-113-2014_03_13-12_11_34.tmp'' failed: exit code 23
INFO: Backup job finished with errors
TASK ERROR: job errorsCode:
INFO: starting new backup job: vzdump 114 --remove 0 --mode snapshot --compress lzo --storage pve_ts879 --node pve1
...
INFO: starting final sync /mnt/pve/pve_ts809/private/114/ to /mnt/pve/pve_ts879/dump/vzdump-openvz-114-2014_03_13-11_24_12.tmp
INFO: rsync: readdir("/mnt/pve/pve_ts879/dump/vzdump-openvz-114-2014_03_13-11_24_12.tmp/etc/alternatives"): Too many levels of symbolic links (40)
INFO: IO error encountered -- skipping file deletion
...
INFO: total size is 441532565 speedup is 688.27
INFO: rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1070) [sender=3.0.9]
INFO: resume vm
INFO: Resuming...
INFO: vm is online again after 4 seconds
ERROR: Backup of VM 114 failed - command 'rsync --stats -x --numeric-ids -aH --delete --no-whole-file --inplace '/mnt/pve/pve_ts809/private/114/' '/mnt/pve/pve_ts879/dump/vzdump-openvz-114-2014_03_13-11_24_12.tmp'' failed: exit code 23
INFO: Backup job finished with errors
TASK ERROR: job errorsCode:
INFO: starting new backup job: vzdump 114 --remove 0 --mode snapshot --compress lzo --storage pve_ts809 --node pve1
...
INFO: starting final sync /mnt/pve/pve_ts809/private/114/ to /mnt/pve/pve_ts809/dump/vzdump-openvz-114-2014_03_13-11_34_15.tmp
...
INFO: total size is 441532565 speedup is 688.27
INFO: final sync finished (4 seconds)
INFO: resume vm
INFO: Resuming...
INFO: vm is online again after 4 seconds
INFO: creating archive '/mnt/pve/pve_ts809/dump/vzdump-openvz-114-2014_03_13-11_34_15.tar.lzo'
INFO: Total bytes written: 459786240 (439MiB, 31MiB/s)
INFO: archive file size: 227MB
INFO: Finished Backup of VM 114 (00:01:10)
INFO: Backup job finished successfully
TASK OKMarco
hosts/storage details
================================================== =========================
Code:
#pveversion -v
proxmox-ve-2.6.32: 3.1-114 (running kernel: 2.6.32-26-pve)
pve-manager: 3.1-24 (running version: 3.1-24/060bd5a6)
pve-kernel-2.6.32-19-pve: 2.6.32-96
pve-kernel-2.6.32-26-pve: 2.6.32-114
pve-kernel-2.6.32-11-pve: 2.6.32-66
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: 4.0.0-2
pve-cluster: 3.0-8
qemu-server: 3.1-8
pve-firmware: 1.0-23
libpve-common-perl: 3.0-9
libpve-access-control: 3.0-8
libpve-storage-perl: 3.0-18
pve-libspice-server1: 0.12.4-2
vncterm: 1.1-6
vzctl: 4.0-1pve4
vzprocps: 2.0.11-2
vzquota: 3.1-2
pve-qemu-kvm: 1.4-17
ksm-control-daemon: 1.1-1
glusterfs-client: 3.4.1-1Code:
#cat /etc/pve/storage.cfg:
...
nfs: pve_ts879
path /mnt/pve/pve_ts879
server ts879
export /PVE
options vers=3,tcp,nolock,rsize=262144,wsize=262144
content images,iso,vztmpl,rootdir,backup
maxfiles 2
nfs: pve_ts809
path /mnt/pve/pve_ts809
server <ts809 IP>
export /PVE
options vers=3
content images,iso,vztmpl,rootdir,backup
maxfiles 2
...Code:
#mount
...
ts879:/PVE on /mnt/pve/pve_ts879 type nfs (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,nolock,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=<ts879 IP>,mountvers=3,mountport=53850,mountproto=tcp,local_lock=all,addr=<ts879 IP>)
...
<ts809 IP>:/PVE on /mnt/pve/pve_ts809 type nfs (rw,relatime,vers=3,rsize=262144,wsize=262144,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=<ts809 IP>,mountvers=3,mountport=905,mountproto=udp,local_lock=none,addr=<ts809 IP>)
...