private boolean loadOneFileConfig(String dir, String fname) {
    if (dir != null) {
      File f = new File(dir, fname);
      if (f.exists()) {
        addResource(new Path(f.getAbsolutePath()));
        LOG.info("loaded config file " + f.getAbsolutePath());
        return true;
      }
    }
    return false;
  }
Dumps all env and config state.  Should be called once on WebHCat start up to facilitate 
support/debugging.  Later it may be worth adding a REST call which will return this data.
hcatalog/webhcat/svr/src/main/java/org/apache/hive/hcatalog/templeton/AppConfig.java