Avoid /usr/bin/xauth: error in locking authority file /home/user/.Xauthority

Solution 1:

Try to not forward X when you log in with ssh. You shouldn't really need it, do you?

If you do not want to take out ForwardX11 true from your ~/.ssh/config (I am guessing that's where it got set), you can try adding -x to the command line.

seq 1000 | parallel -j0 -S server -x echo

Solution 2:

You could disable X-forwarding in your SSH config for this server.

For instance in your $HOME/.ssh/config you could have

  Host server
             ForwardX11 no