gets the hostname of the taskmanager . the hostname derives from the fully qualified domain name fqdn , see #getfqdnhostname : if the fqdn is the textual ip address , then the hostname is also the ip address if the fqdn has only one segment such as `` localhost '' , or `` host17 '' , then this is used as the hostname . if the fqdn has multiple segments such as `` worker3.subgroup.company.net '' , then the first segment here `` worker3 '' will be used as the hostname . concode_field_sep Logger LOG concode_elem_sep String hostName concode_elem_sep ResourceID resourceID concode_elem_sep long serialVersionUID concode_elem_sep InetAddress inetAddress concode_elem_sep String fqdnHostName concode_elem_sep String stringRepresentation concode_elem_sep int dataPort concode_field_sep String getFQDNHostname concode_elem_sep InetAddress address concode_elem_sep ResourceID getResourceID concode_elem_sep int hashCode concode_elem_sep String addressString concode_elem_sep boolean equals concode_elem_sep int dataPort concode_elem_sep String toString concode_elem_sep int compareTo
String function ( ) { return hostName ; }