Migrating to new server - Restore backup failing

[mazarian]

Hi all,

I'm having a tough time migrating my server hosted on DigitalOcean over to my own Proxmox. I created an Ubuntu 22.04 VM with 12GB memory and 320GB storage. There are 12 containers (all pretty small) on my Cloudron instance that need to be restored. I have been backing up to filesystem (following the backup/restore guide in docs) and copying the files over to the new box (I made sure permissions in entire directory are owned by yellowtent:yellowtent). When I go through the restore process, the new instance becomes very unresponsive. When I access the web interface, I can see that it is trying to restore the containers, but many of them error out. If I try to click on one of the containers to see what is happening, it gives me an error saying the app isn't responding.

Not sure how to troubleshoot but happy to provide any logs.

Thanks!

[mazarian]

So- after a bit of fighting with it, I was able to get all of the containers online. Many failed, but eventually the interface became responsive and I was able to restore each individually.

I think one of the things that's happening is they'are all trying to restore simultaneously. Perhaps if it restored in a linear way, there would be a bit more stability.

[robi]

sounds more like a DNS issue

[mazarian]

I wish it was, but the DNS was already set to my new IP address for all of the instances on my Cloudron. I tried doing the restore multiple times, choosing enabling and disabling the dry run option as I tried to figure things out.

[robi]

That's not what I meant, as there a many ways DNS resolution fails, not just because there are no records. Many examples of this exist on this forum, from unbound not coming up preventing server based resolution to browser based issues and cached bad entries.

[fbartels]

Hi @mazarian,

in /home/yellowtent/platformdata/logs you will the file box.log, which should give an indication of what went wrong during your restore.

I did not check what the documentation says about this, but earlier this week I performed a restore in a similar manner to you and watching the dashboard during the restore there was definitely some parallel activity going on during the restore. I would have said that it was probably something like two or three apps at the same time max.