content: /*
   * Copyright 1999-2025 Alibaba Group Holding Ltd.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.alibaba.nacos.api.common;
  
  /**
   * The life cycle state of a node plays an important role.
   *
   * <p>1.3.0 The unified sinking operation should be done first, and the node state
   * should be radiated out later, mainly for whether the request can be processed and so on</p>
   *
   * @author <a href="mailto:liaochuntao@live.com">liaochuntao</a>
   */
  public enum NodeState {
      
      /**
       * Node is starting.
       */
      STARTING,
      
      /**
       * Node is up and ready for request.
       */
      UP,
      
      /**
       * Node may Crash.
       */
      SUSPICIOUS,
      
      /**
       * Node is out of service, something abnormal happened.
       */
      DOWN,
      
      /**
       * The Node is isolated.
       */
      ISOLATION,
      
  }
  