public File getKerberosKeytabCacheDir() {
    return new File(getProperty(KERBEROSTAB_CACHE_DIR));
  }
Gets the directory where Ambari is to store cached keytab files.

@return a File containing the path to the directory to use to store cached keytab files
ambari-server/src/main/java/org/apache/ambari/server/configuration/Configuration.java