@Override
	public boolean isRunning() {
		return this.running.get();
	}
@author xiaojing
@author yuhuangbin
@author pengfei.lu
@author ruansheng
spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/discovery/NacosWatch.java