public String toShortString() {
    return Addressing.createHostAndPortStr(getHostNameMinusDomain(this.address.getHostname()),
      this.address.getPort());
  }
Return a SHORT version of {@link #toString()}, one that has the host only, minus the domain,
and the port only -- no start code; the String is for us internally mostly tying threads to
their server. Not for external use. It is lossy and will not work in in compares, etc.
hbase-common/src/main/java/org/apache/hadoop/hbase/ServerName.java