private String toShortString() {
      StringBuilder sb = new StringBuilder();
      sb.append(", canAcceptTask=").append(_canAcceptInternal());
      sb.append(", st=").append(numScheduledTasks);
      sb.append(", ac=").append((numSchedulableTasks - numScheduledTasks));
      sb.append(", commF=").append(hadCommFailure);
      sb.append(", disabled=").append(disabled);
      sb.append("}");
      return shortStringBase + sb.toString();
    }
@return the time at which this node will be re-enabled
llap-tez/src/java/org/apache/hadoop/hive/llap/tezplugins/LlapTaskSchedulerService.java