Cloudron Forum

Hello @cloudron_jf Can you please provide the full backup log of that failing backup?

https://git.cloudron.io/platform/box/-/commit/5ba8a054501139410fccbd7258ed9097590bc50e

The machine was stuck on Ubuntu 20.04.6 LTS Linux 5.4.0-124-generic. It has been upgraded to Ubuntu 22.04.5 LTS Linux 5.15.0-170-generic. It was still too slow for normal operation after the upgrade. The provider scaled it up to compensate. Now it is working fine but a doubling in CPU and RAM seems quite strange of a need so sudden. Yes, indeed both machines are hosted by the same provider. Regarding data center and node, I can not say for sure. Would a storage issue not reflect in I/O numbers of the VPS? Those seem fine.

Will do, James. I have not been able to recreate the held lock issue. I was starting/stopping jobs a fair bit at one point, and can't... be precise about where in the backup cycle those cancellations happened that a cleanup might not have happened. I will watch for it in the future. When I said there was no RAM pressure, I meant that was true for the server. However, my jobs all had 1GB of RAM. Your suggestion clued me in; because that value must be set after you setup the backup job, I had never noticed it before... or, not realized how critical it might be. I have bumped them all to 6GB of RAM, and so far, I've been seeing backup successes. Barring the question below, I'd say we could close this issue. The lesson learned is that I need to provide my backup tasks more RAM. Because I have some RAM to spare, I'm going aggressive, and giving things 6GB. I did not attempt to settle on a smaller amount, for anyone who comes along after--- I just gave the tasks a limit that I considered to be "a lot" in this context. I still see some things like the errors below. The backup completes successfully, but I'm unclear why there would be errors like these sprinkled throughout the backup. Is the relative path full/snapshot/app_... actually correct? Or, should that be a full path (e.g. the base path I provided at setup time along with the relative path)? In the command that succeeds, it is a full path. Feb 13 16:11:00 box:shell filesystem: ssh -o "StrictHostKeyChecking no" -i /tmp/identity_file_d82bc09e-a419-4d60-84bf-95d631fd0ebb -p 22 user@nas.lan cp -aRl full/snapshot/app_c74efccf-d273-46c9-8afe-3fd427bb78c1 full/2026-02-13-210356-064/app_git.jadud.com_v1.37.4 errored BoxError: ssh exited with code 1 signal null Feb 13 16:11:00 at ChildProcess.<anonymous> (/home/yellowtent/box/src/shell.js:82:23) Feb 13 16:11:00 at ChildProcess.emit (node:events:519:28) Feb 13 16:11:00 at maybeClose (node:internal/child_process:1101:16) Feb 13 16:11:00 at ChildProcess._handle.onexit (node:internal/child_process:304:5) { Feb 13 16:11:00 reason: 'Shell Error', Feb 13 16:11:00 details: {}, Feb 13 16:11:00 stdout: <Buffer >, Feb 13 16:11:00 stdoutString: '', Feb 13 16:11:00 stdoutLineCount: 0, Feb 13 16:11:00 stderr: <Buffer 63 70 3a 20 63 61 6e 6e 6f 74 20 73 74 61 74 20 27 66 75 6c 6c 2f 73 6e 61 70 73 68 6f 74 2f 61 70 70 5f 63 37 34 65 66 63 63 66 2d 64 32 37 33 2d 34 ... 50 more bytes>, Feb 13 16:11:00 stderrString: "cp: cannot stat 'full/snapshot/app_c74efccf-d273-46c9-8afe-3fd427bb78c1': No such file or directory\n", Feb 13 16:11:00 stderrLineCount: 1, Feb 13 16:11:00 code: 1, Feb 13 16:11:00 signal: null, Feb 13 16:11:00 timedOut: false, Feb 13 16:11:00 terminated: false Feb 13 16:11:00 } Feb 13 16:11:00 box:storage/filesystem SSH remote copy failed, trying sshfs copy Feb 13 16:11:00 box:shell filesystem: cp -aRl /mnt/managedbackups/1ec6c6b4-7566-4369-b2ce-466968b00d5d/full/snapshot/app_c74efccf-d273-46c9-8afe-3fd427bb78c1 /mnt/managedbackups/1ec6c6b4-7566-4369-b2ce-466968b00d5d/full/2026-02-13-210356-064/app_git.jadud.com_v1.37.4 Feb 13 16:11:07 box:backuptask copy: copied successfully to 2026-02-13-210356-064/app_git.jadud.com_v1.37.4. Took 7.889 seconds

There is also a Logs dropdown button in the backups view which opens the corresponding log file in the logsviewer, from there the full logs can also be downloaded, avoiding the need to ssh into the server.

Hello @jadudm Always happy to help.

Yes, you have to adjust the schedule manually to not overlap. Otherwise, if a single app is backing up to multiple sites in parallel, they will get serialized internally (with the lock).

Hello @miednr Yes, for stopped apps a new backup will not be created since nothing has changed. See: https://docs.cloudron.io/backups#retention-policy For installed apps and box backups, the latest backup is always retained regardless of the policy. This ensures at least one backup remains preserved even if all backups fall outside the retention policy. This also preserves the latest backup of stopped apps when not referenced by any box backup. Did you know you can also archive apps? https://docs.cloudron.io/apps#archive

@girish Thank you, after upgrading to Cloudron version 9.0.17 (latest), everything started working again.

I solved my problem by updating Cloudron to version 9.0.17. There’s no longer any need to run a backup before a manual app update.

@tecbox thanks for the update!

@difficult222 I have replied to your ticket.

@jdaviescoates yes, there was a sshfs backup bug and I think 9.0.14 and 9.0.15 had fixed for exactly this. Unfortunately, Cloudron has no way to "force update" a bugged release.

Hi @joseph . Thanks! Yes, the issue was with the encryption password. I successfully created a new app from the backup. However, one question remains: how can I restore a backup to NocoDB without recreating the app? The original restore (to the existing app) kept failing with the role already exists PostgreSQL error. Could this be related to memory limits? I checked and there seemed to be enough memory available everywhere. For context: my NocoDB has many records plus connections to external databases.

Thank you @james Increasing the part size has fixed the issue.

@goseph10 that was a bug. I have fixed this in https://git.cloudron.io/platform/box/-/commit/1594d190eb29071c0aa11ff0a0e48554bb5fc04f You can edit /home/yellowtent/box/src/updater.js and fix line 229: if (!options.skipBackup && sites.length === 0) throw new BoxError(BoxError.BAD_STATE, 'No backup site is enabled to store automatic-update backups. Enable this in a backup site to continue.'); After that systemctl restart box

Hello @dsp76 Is this still an issue?

Thank you @jadudm Cloud Sync app is, I think, what I need. I didn't know this Synology app and I think It will help me in many cases.

Thank you @james I could not get it to work. After several attempts, I ultimately deleted the backup files and started with a new configuration. As advised, I also set the retention period to "unlimited" (it was previously set to two days). Everything is working well now, and I was able to back up and clone the app without any issues. Thanks again, and keep up the good work!

Thanks!!