THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
Geode's dynamic membership system is based on "membership views", an idea taken from JGroups.
See Replacing JGroups 2.2.9 for deliberation in 2015 regarding replacing JGroups in Geode. Also see this RFC: Replace UDP messaging for membership with TCP.
Here is a JGroups Manual circa 1998.
Here are papers that JGroups originator Bela Ban published in 1998. They're provided here for historical context.