protected void updateRangerLogDirConfigs() throws AmbariException {
    AmbariManagementController ambariManagementController = injector.getInstance(AmbariManagementController.class);
    Clusters clusters = ambariManagementController.getClusters();
    if (clusters != null) {
      Map<String, Cluster> clusterMap = clusters.getClusters();
      if (clusterMap != null && !clusterMap.isEmpty()) {
        for (final Cluster cluster : clusterMap.values()) {
          Set<String> installedServices = cluster.getServices().keySet();
          if (installedServices.contains("RANGER")) {
            Config rangerEnvConfig = cluster.getDesiredConfigByType("ranger-env");
            Config rangerAdminSiteConfig = cluster.getDesiredConfigByType("ranger-admin-site");
            Config rangerUgsyncSiteConfig = cluster.getDesiredConfigByType("ranger-ugsync-site");
            if (rangerEnvConfig != null) {
              String rangerAdminLogDir = rangerEnvConfig.getProperties().get("ranger_admin_log_dir");
              String rangerUsersyncLogDir = rangerEnvConfig.getProperties().get("ranger_usersync_log_dir");
              if (rangerAdminLogDir != null && rangerAdminSiteConfig != null) {
                Map<String, String> newProperty = new HashMap<String, String>();
                newProperty.put("ranger.logs.base.dir", rangerAdminLogDir);
                updateConfigurationPropertiesForCluster(cluster, "ranger-admin-site", newProperty, true, false);
              }
              if (rangerUsersyncLogDir != null && rangerUgsyncSiteConfig != null && rangerUgsyncSiteConfig.getProperties().containsKey("ranger.usersync.logdir")) {
                Map<String, String> updateProperty = new HashMap<String, String>();
                updateProperty.put("ranger.usersync.logdir", rangerUsersyncLogDir);
                updateConfigurationPropertiesForCluster(cluster, "ranger-ugsync-site", updateProperty, true, false);
              }
              Set<String> removeProperties = Sets.newHashSet("ranger_admin_log_dir", "ranger_usersync_log_dir");
              removeConfigurationPropertiesFromCluster(cluster, "ranger-env", removeProperties);
            }
          }
        }
      }
    }

  }
Updating Ranger Admin and Ranger Usersync log directory configs
@throws AmbariException
ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpgradeCatalog271.java