The Voldemort example log visualization contains edges that have no parent
events. These edges are inferred from the vector timestamps since the log does
not contain an explicit parent event.
It would be more clear if we draw these missing parents, or ghost events. We
can draw these as grey unfilled circles. And, on hover, the user can be
presented with the following "Current node" text (which can be displayed in
grey to distinguish it from the events that are in the log):
"An inferred communication event that influenced the ordering, but is not
present in the log."
Original issue reported on code.google.com by bestchai on 29 May 2013 at 1:00
Original issue reported on code.google.com by
bestchai
on 29 May 2013 at 1:00