@Override
  public String getHostName() {
    return hostName;
  }
Creates a new <code>GemFireHealthConfigImpl</code> that applies to the host with the given
name.

@param hostName The name of the host to which this configuration applies. If <code>null</code>,
       then this is the "default" configuration.
geode-core/src/main/java/org/apache/geode/admin/internal/GemFireHealthConfigImpl.java