@Override
  protected void executeDMLUpdates() throws AmbariException, SQLException {
    AmbariManagementController ambariManagementController = injector.getInstance(AmbariManagementController.class);
    AmbariMetaInfo ambariMetaInfo = injector.getInstance(AmbariMetaInfo.class);
    Clusters clusters = ambariManagementController.getClusters();
    ambariMetaInfo.reconcileAlertDefinitions(clusters, true);
  }
Updates script-based alert definitions with paths from the stack.
ambari-server/src/main/java/org/apache/ambari/server/upgrade/UpdateAlertScriptPaths.java