Out of memory on new QNAP

Support
#1

Hi,

On a new QNAP TS-233, I selected of the /share folders, hit backup, it started indexing and then gave this error in the system logs sometime later:

Warning 2022-05-29 22:04:49 System 127.0.0.1 Hardware Status Kernel [Hardware Status] NAS out of memory. Started kill process: 7169 “duplicacy_linux”. Disable some applications to free up memory, or expand the system memory.

Please advise.

Thanks!

#2

Duplicacy uses quite a bit of ram.

You have three options:

  1. Add ram to your nas. Not really an option for that model of QNAS.
  2. Don’t run duplicacy directly on the nas (this would be my first choice: even if you had enough ram there, using that ram by anything but the filesystem caches will adversely affect primary job of your nas — being a responsive storage appliance). 2Gb is barely enough to run the system and a tiny cache.
  3. Wait for the memory optimization change to be released, but it is not a guarantee that it will solve the problem for you, in fact, likely it won’t.

In summary — my advice would be to not run apps, let alone duplicacy, on a storage appliance with non upgradable 2GB of ram. Access data on your NAS over network, from another host, correctly sized for the performance.

#3

Try breaking up the backup into smaller jobs - you can always change your mind later, and group files differently. The less number of files that need backing up, the less memory, although it’s still not guaranteed. Pick a subdirectory and see if it get through it.