Would be nice if server was using Unix Socket instead of TCP socket with port number on localhost.
And on windows it could be Named Pipe.
Sure, plugins could stop working, so network port can be left as fallback.
In this case security can be addressed additionally, as we can authenticate clients – know PID and user id.
So we can have two security levels. Ones that allows to submit spans and create new buckets.
Second for Dashboard, to view data and change it.
Also this would allow multiple users on same machine, but this can be achieved by simply using different ports. But security improvements seems really nice. And it’s more unix-way.