@Override
  public String getSystemDirectoryPath() {
    try {
      return LocalHostUtil.getLocalHostName();
    } catch (UnknownHostException ignore) {
      return "";
    }
  }
Returns the path to this sampler's system directory; if it has one.
geode-core/src/main/java/org/apache/geode/internal/statistics/HostStatSampler.java