Oneconf was eating up a lot of memory on my system. But if you purge the oneconf package it also removes the ubuntu-desktop and software-center package. And I wanted to keep those. Especially ubuntu-desktop.
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sudo chmod a-x /usr/share/oneconf/oneconf-service sudo chmod a-x /usr/share/oneconf/oneconf-query sudo chmod a-x /usr/share/oneconf/oneconf-update
So I did and it works great. No more oneconf service and I didn’t notice any other problems (yet).