07 August 2019 Server Linux

Apt fix fatal failed to fork

I got the following error message while trying to update one of my recently created test servers:

ahmet@testserver1:~$ apt update && apt dist-upgrade
Hit:1 http://mirror.hetzner.de/ubuntu/packages bionic InRelease
Hit:2 http://mirror.hetzner.de/ubuntu/packages bionic-updates InRelease
Hit:3 http://mirror.hetzner.de/ubuntu/packages bionic-backports InRelease
Hit:4 http://mirror.hetzner.de/ubuntu/packages bionic-security InRelease
Hit:5 http://ppa.launchpad.net/certbot/certbot/ubuntu bionic InRelease
Hit:6 http://archive.ubuntu.com/ubuntu bionic InRelease
Hit:7 http://security.ubuntu.com/ubuntu bionic-security InRelease
Hit:8 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
Hit:9 http://archive.ubuntu.com/ubuntu bionic-backports InRelease
Reading package lists... Done
FATAL -> Failed to fork.

After some research I found out, that low memory led to this issue. The update process worked fine after stopping the applications.

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