[SOLVED] File Restore from Proxmox Backup Server - 0 Bytes

M

MisterDeeds

Active Member
Nov 11, 2021
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Hello together

I have a Proxmox backup server in use. Now I wanted to perform a file restore from this server. The file shows it with correct size via GUI.
1.PNG
However, as soon as the ZIP is downloaded, it is 0 bytes.
2.PNG

Am I doing something wrong?

Thanks for your help and best regards
 
can you check the log from: '/var/log/proxmox-backup/file-restore/qemu.log' on the PVE server ?
 
Dear Dominik

Thank you for the answer. Below is the excerpt from the log file:

Code: 
root@Pve03:~# tail /var/log/proxmox-backup/file-restore/qemu.log
F2FS-fs (vda): Can't find valid F2FS filesystem in 2th superblock
[2022-10-10T07:08:09.871Z INFO  proxmox_restore_daemon::proxmox_restore_daemon::disk] drive 'vda' ('drive-scsi0'): found partition '/dev/vda2' (2, 137402253312B)
[2022-10-10T07:08:09.877Z INFO  proxmox_restore_daemon::proxmox_restore_daemon::disk] drive 'vda' ('drive-scsi0'): found partition '/dev/vda1' (1, 322122547200B)
[2022-10-10T07:08:10.153Z INFO  proxmox_restore_daemon] disk scan complete.
EXT4-fs (vda1): couldn't mount as ext3 due to feature incompatibilities
EXT4-fs (vda1): write access unavailable, skipping orphan cleanup
[2022-10-10T07:08:12.716Z INFO  proxmox_restore_daemon::proxmox_restore_daemon::disk] mounting '/dev/vda1' succeeded, fstype: 'ext4'
[2022-10-10T07:08:24.243Z INFO  proxmox_restore_daemon::proxmox_restore_daemon::watchdog] Inhibit added: 1
[2022-10-10T07:08:24.342Z ERROR proxmox_restore_daemon::proxmox_restore_daemon::api] file or dir streaming task failed - broken pipe
[2022-10-10T07:08:24.346Z INFO  proxmox_restore_daemon::proxmox_restore_daemon::watchdog] Inhibit dropped: 0
root@Pve03:~#

The file system of the affected system looks like this:

Code: 
Filesystem                                         Type      Size  Used Avail Use% Mounted on
udev                                               devtmpfs   63G     0   63G   0% /dev
tmpfs                                              tmpfs      13G  936K   13G   1% /run
/dev/sda1                                          ext4      272G   43G  214G  17% /
tmpfs                                              tmpfs      63G     0   63G   0% /dev/shm
tmpfs                                              tmpfs     5.0M     0  5.0M   0% /run/lock
tmpfs                                              tmpfs      13G   12K   13G   1% /run/user/0

Thank you for the help and best regards
 
MisterDeeds said:
Code: 
[2022-10-10T07:08:24.342Z ERROR proxmox_restore_daemon::proxmox_restore_daemon::api] file or dir streaming task failed - broken pipe
Click to expand...
would indicate a network or server problem
can you check the corresponding 'read' task on the pbs for errors?
 
I think that looks ok. What I wonder is why the read process takes so long, would I have to wait for him to finish reading it?

1.PNG
 
can you post the complete task log of this read task?
 
sure:
Code: 
proxmox-backup-manager task log <upid>
 
Thank you very much for the answer. Unfortunately that does not seem to work either, or am I doing something wrong? Sorry I am not very familiar with the Proxmox Backup Server system....

Code: 
├──────────────────────────┼──────────────────────────┼───────────────────────────────────────────────────────────────────────────────────────────────────────┼─────────┤
│ Mon Oct 10 13:54:25 2022 │ Mon Oct 10 13:54:25 2022 │ UPID:SrvBackup01:000BDA6A:0BC2743E:00000817:634407F1:reader:Novus\x3avm-6024-634355F8:pbs_client@pbs: │ OK      │
└──────────────────────────┴──────────────────────────┴───────────────────────────────────────────────────────────────────────────────────────────────────────┴─────────┘
root@SrvBackup01:~# proxmox-backup-manager task log UPID:SrvBackup01:000BDA6A:0BC2743E:00000817:634407F1:reader:Novus\x3avm-6024-634355F8:pbs_client@pbs:
Error: No such file or directory (os error 2)
root@SrvBackup01:~#

The following error is displayed during the restore:

Code: 
Starting download of file: drive-scsi0.img.fidx/part/1/var/crawlerlogs_backup/2022/10/09.zip
reading file extraction stream failed - broken pipe
TASK ERROR: file restore task failed: command '/usr/bin/proxmox-file-restore extract '--crypt-mode=none' vm/6024/2022-10-09T23:15:04Z 'ZHJpdmUtc2NzaTAuaW1nLmZpZHgvcGFydC8xL3Zhci9jcmF3bGVybG9nc19iYWNrdXAvMjAyMi8xMC8wOS56aXA=' - --base64 1 --repository pbs_client@pbs@172.16.0.25:Novus' failed: exit code 1
 
you probably have to put the upid in quotes for it to work:

Code: 
proxmox-backup-manager task log 'UPID:SrvBackup01:000BDA6A:0BC2743E:00000817:634407F1:reader:Novus\x3avm-6024-634355F8:pbs_client@pbs:'
else some characters might be interpreted by the shell instead of the program
 
Dear Dominik

Thank you for the answer. Now it has worked! Does that help?

Code: 
root@SrvBackup01:~# proxmox-backup-manager task log 'UPID:SrvBackup01:000BDA6A:0BC2743E:0000080F:634407E0:reader:Novus\x3avm-6024-634355F8:pbs_client@pbs:'
starting new backup reader datastore 'Novus': "/mnt/Nas01-Backup/Novus"
protocol upgrade done
GET /download
download "/mnt/Nas01-Backup/Novus/vm/6024/2022-10-09T23:15:04Z/index.json.blob"
GET /download
download "/mnt/Nas01-Backup/Novus/vm/6024/2022-10-09T23:15:04Z/drive-scsi0.img.fidx"
register chunks in 'drive-scsi0.img.fidx' as downloadable.
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/47e3/47e30bda4d76fc994e131485e129480140b7747c5eed7a543eeadfbce5d8d1b9"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/2f0d/2f0d90d19d7147e8855f519a7dd8cac093dd9f272f6b6d7f5f640c3e90fa9108"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/6c0b/6c0b80c08ad67872c423129de2e532b2d113b2155575e902d635bb89745bce38"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/a4a6/a4a61b7e7dff18ee5468a0d47aadb5c8defe70d79e3a9a2c86e9187603b53f12"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/e85e/e85e805ee70f4c3851082eaf9a1488d0430eac1b024b9d9e42b9ca17ef6787bc"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/f83d/f83d30a1b0ac763d636cc8162dbea659cecf3019806d15ede8828b1d754419c9"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/b53e/b53e1105dc0e830c73d9d5959b59f31a8f856ef867a97baff539136d472f8e37"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/4e0d/4e0d435ae54f2cf088e124c3ca8e98316638aa35d73e8b3bc28e8210fc86cfc8"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/9b44/9b440a3afb272cc2d4262fe0c910084bf88715405337cdd7bcb5763ff08fb316"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/5958/5958560d12b6832d1baf581ffe62960a5a4a858d34eb202d0fea466640d00f82"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/43b2/43b2a586cca511126da6a58fee9680b7172bb545c8ebd8801341c5b6a8ccba91"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/b2c2/b2c299f61cfd00005e46afb4370c0889fdca0fe9c9e439cdb5fd7c3888597d7a"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/4bf3/4bf37293ea5f5274cb7e1b929e9b97cd22f0c6dac9ef8fef1dba6c6147e941e6"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/17ab/17ab9b581af9d58d0a262dc6b16d4bc240c210fa6d56273aa1790e9e5f25594f"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/925c/925ca3cb338f8960dc34e0370b9994136e0335101519529fefdca97e28fdde65"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/548d/548d3d0feb10b269361b972c4203aca9b50cbea07c3f2f424d50ebe0b360e791"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/fba2/fba2c05b1ec06c7a35cb0c5db91f3d086adae39807ba910981fe1dc8f27bada4"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/329e/329e09a446a55ba4abc8f1c995d2cdff04a9e833a44066f90fbe1e19ba9eac1e"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/750e/750ef79b4bcbb6b812ea391e7ed98ec251a286a6012011943154690fe60732fb"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/7d31/7d31ff4b7ec26205e1fbf851bb0b5f17db170c06fbfeb003a7d404c0775de57e"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/bfe1/bfe187eaba5de3c71624d09ec665daa7ea8dd90bd854e76bfe39bd80ed08935c"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/d28c/d28c7b0dadbabd1d1a6b5ee770c21a3aa576ca2099d3f9633efd185534bc7c2c"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/3829/38294cf16acd913ece5593452e494e5e4ae96c92705b42518c8fb6b3e0b1c555"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/9bc0/9bc0b1eae61df5540ae6fc141dbb2df53a9899711e2db810cf929912f2196bbd"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/0ccf/0ccf38159217b3282b985d0bf205d37ec866bec1f228e1dbe83348999fbe3830"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/089e/089efb36a6219ca2df2b62c6f3b3a353bdd71f5ce2b2cda4178528bdd55c1fcc"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/f0ee/f0eeb862b5599237a996b5359f9006a23874e7fe5ad377d752dac01fa1f0fdfd"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/df97/df971c15c06d620706c83be91eecec66f4b868e0e78a6d919ba1cf0bbda46f4c"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/d428/d428fafe6435de34574f485a19df5b6a59f7af9359e1465b5495f3707acba14b"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/c2d2/c2d2c66b06bcb2e763d22b6ee565080b59e676f9855789485aa9ff16bbd8084b"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/93f9/93f941c204abfa5b7a5f33af22393b3cb28745603e9d49270557202334e1d04d"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/e000/e0001f818eb2c2ec527172c65888180663b2a71dcee7c027d5f5421d1a858b92"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/65cc/65cc38b4d0c81edd8b8ad4904b8bc9e7f02405ad06116f20572c2b8b36da158e"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/0b27/0b27d7b98e1158fc8edafcf82a76c030cbe840839ec989012ccdccd9e7261b72"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/9911/9911964582f40fb62d9c73cb7e52688868a0b56ea8aac6b9df42589f5e83a35e"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/89cb/89cb1e417ee38d6893b3866a32a00c654766e8c0d0582066dac892137ed9f4c8"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/97d7/97d716945186ae0f5ac839a5663809d74797a1b1339a9c7967bf0fd8dc46d30f"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/a820/a8206118a5657266f4bcb5ea5141befb66a682e385dee34043e8f3636a01e5bf"
GET /chunk
download chunk "/mnt/Nas01-Backup/Novus/.chunks/c4d7/c4d7c4ca699d897ae62af73481426b492886eecefc44a0e881c2b2795603d69d"
reader finished successfully
TASK OK
 
it shows at least that the problem is not between pbs and the pve, but it seems on the pve
does it work with any file or directory? or is it broken for all?, can you try to restore the backup to a new vmid and check if the files are readable via a live cd for example?
 
Dear Dominik

All right. Unfortunately, it does not work with any file. Also on another VM the behavior is identical.

Code: 
Starting download of file: drive-scsi0.img.fidx/part/1/var/backups/alternatives.tar.0
Error: Broken pipe (os error 32)
TASK ERROR: file restore task failed: command '/usr/bin/proxmox-file-restore extract '--crypt-mode=none' vm/6019/2022-10-09T23:15:03Z 'ZHJpdmUtc2NzaTAuaW1nLmZpZHgvcGFydC8xL3Zhci9iYWNrdXBzL2FsdGVybmF0aXZlcy50YXIuMA==' - --base64 1 --repository pbs_client@pbs@172.16.0.25:Novus' failed: exit code 255

It seems to happen only during File Restore. The normal full restore works without problems. The files on it are readable.

Is it possible that there is a problem if the backups are not verified?
 
MisterDeeds said:
Is it possible that there is a problem if the backups are not verified?
Click to expand...
that should not make a difference...

can you post your pbs and pve versions ?
Code: 
proxmox-backup-manager versions --verbose
on pbs and

Code: 
pveversion -v
on pve
 
Yes for sure:

Code: 
root@SrvBackup01:~# proxmox-backup-manager versions --verbose
proxmox-backup             2.2-1        running kernel: 5.15.39-4-pve
proxmox-backup-server      2.2.6-1      running version: 2.2.6
pve-kernel-helper          7.2-12
pve-kernel-5.15            7.2-11
pve-kernel-5.15.60-1-pve   5.15.60-1
pve-kernel-5.15.53-1-pve   5.15.53-1
pve-kernel-5.15.39-4-pve   5.15.39-4
pve-kernel-5.15.35-1-pve   5.15.35-3
ifupdown2                  3.1.0-1+pmx3
libjs-extjs                7.0.0-1
proxmox-backup-docs        2.2.6-1
proxmox-backup-client      2.2.6-1
proxmox-mini-journalreader 1.2-1
proxmox-widget-toolkit     3.5.1
pve-xtermjs                4.16.0-1
smartmontools              7.2-pve3
zfsutils-linux             2.1.5-pve1
root@SrvBackup01:~#

and

Code: 
root@Pve03:~# pveversion -v
proxmox-ve: 7.2-1 (running kernel: 5.15.39-1-pve)
pve-manager: 7.2-11 (running version: 7.2-11/b76d3178)
pve-kernel-helper: 7.2-12
pve-kernel-5.15: 7.2-11
pve-kernel-5.15.60-1-pve: 5.15.60-1
pve-kernel-5.15.53-1-pve: 5.15.53-1
pve-kernel-5.15.39-1-pve: 5.15.39-1
pve-kernel-5.15.30-2-pve: 5.15.30-3
ceph: 16.2.9-pve1
ceph-fuse: 16.2.9-pve1
corosync: 3.1.5-pve2
criu: 3.15-1+pve-1
glusterfs-client: 9.2-1
ifupdown2: 3.1.0-1+pmx3
ksm-control-daemon: 1.4-1
libjs-extjs: 7.0.0-1
libknet1: 1.24-pve1
libproxmox-acme-perl: 1.4.2
libproxmox-backup-qemu0: 1.3.1-1
libpve-access-control: 7.2-4
libpve-apiclient-perl: 3.2-1
libpve-common-perl: 7.2-2
libpve-guest-common-perl: 4.1-2
libpve-http-server-perl: 4.1-3
libpve-storage-perl: 7.2-10
libspice-server1: 0.14.3-2.1
lvm2: 2.03.11-2.1
lxc-pve: 5.0.0-3
lxcfs: 4.0.12-pve1
novnc-pve: 1.3.0-3
proxmox-backup-client: 2.2.6-1
proxmox-backup-file-restore: 2.2.6-1
proxmox-mini-journalreader: 1.3-1
proxmox-widget-toolkit: 3.5.1
pve-cluster: 7.2-2
pve-container: 4.2-2
pve-docs: 7.2-2
pve-edk2-firmware: 3.20220526-1
pve-firewall: 4.2-6
pve-firmware: 3.5-3
pve-ha-manager: 3.4.0
pve-i18n: 2.7-2
pve-qemu-kvm: 7.0.0-3
pve-xtermjs: 4.16.0-1
qemu-server: 7.2-4
smartmontools: 7.2-pve3
spiceterm: 3.2-2
swtpm: 0.7.1~bpo11+1
vncterm: 1.7-1
zfsutils-linux: 2.1.5-pve1
root@Pve03:~#
 
mhmm.. it does work here.. is there anything special about the filesystem in the vm?
how does the network look like between your client and the pve system?
 
Dear Dominik

Thanks for the answer. I use a NFS share of a Synology NAS for storing the backups. I simply included this via fstab.
2.PNG

1.PNG

And created the datastore for the backup on it. I have set the permissions manually to the user "backup".

Code: 
chown -R backup:backup /mnt/Nas01-Backup/
chmod -R 775 /mnt/Nas01-Backup/

proxmox-backup-manager datastore create Novus /mnt/Nas01-Backup/Novus

1665495588180.png

Is there possibly something wrong with the permissions?

Thank you and best regards
 
thats not really relevant, since the pbs can seemingly read just fine (see the read task, everythings ok there)
i think the problem is somewhere inside the backup, either our restore vm has some problem reading the files from inside the backup, or the network connection between the PVE (not PBS) and your browser is somehow broken
 
ah yes, i knew that problem was familiar ^^ great you solved it
 
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