We just upgraded from 6.2 to 6.3 and are no longer able to start. The error message states that I cannot start as root, and it seems to be a very common issue looking at posts here and using google.
But I just can't figure out where this is coming from, I've checked everything, and nowhere I seem to be using root anymore
I ensured usr/share/elasticsearch, var/lib/elasticsearch and etc/elasticsearch are not on root, but I keep getting the message that I am using it as root. We decided to uninstall and reinstall from scratch on our development machines but no luck, same error again after vanilla installation. The issue is the same on my production machine which is now completely unavailable.
So since the only responses here are 'do not use root', and as far as i can see I do not use root I have following questions :
What permissions and ownership settings are changed by the installer after upgrading from 6.2 to 6.3?
Are there any other folders used by ES apart from the ones mentioned above? If so can someone share these?
If not, is there a way to roll back?
If it helps, we are running on Ubuntu 16.04, and we had Xpack installed