Since these servers presumably already have ZooKeeper installed and configured, it's likely the configuration files reflect the settings we want. However, it's always a good idea to perform due diligence. This also gives us the opportunity to see the full list of available ZooKeeper servers as listed in the configuration file. It may mean there is a large constellation of additional systems available for our PostgreSQL cluster.
Of special note is the myid file. ZooKeeper can maintain a cluster of up to 255 nodes, and each is assigned an arbitrary number in this file. Our small sample setup can easily align these ID values to the server name we've assigned, but this is probably not the case in a real environment. Make special ...
