SubmittedDAGs is always 0 in Resource Manager UI

public String submitDAGToAppMaster(....){
........
      if (dagPlan.getName().startsWith(TezConstants.TEZ_PREWARM_DAG_NAME_PREFIX)) {
        submittedDAGs.incrementAndGet();
         }
     }
}

      if (!dagPlan.getName().startsWith(TezConstants.TEZ_PREWARM_DAG_NAME_PREFIX)) {
        submittedDAGs.incrementAndGet();
      }