Processor Host. create Host Name(String prefix) 方法
Convenience method for generating unique host names, safe to pass to the EventProcessorHost constructors that take a hostName argument.
If a prefix is supplied, the constructed name begins with that string. If the prefix argument is null or an empty string, the constructed name begins with "javahost". Then a dash '-' and a UUID are appended to create a unique name.
public static String createHostName(String prefix)
String to use as the beginning of the name. If null or empty, a default is used.
A unique host name to pass to EventProcessorHost constructors.