private SidecarInstanceInfo instanceCache(String applicationName, String ip,
			Integer port, Status status) {
		SidecarInstanceInfo sidecarInstanceInfo = buildCache(ip, port, status);
		sidecarInstanceCacheMap.putIfAbsent(applicationName, sidecarInstanceInfo);
		return sidecarInstanceInfo;
	}
@author www.itmuch.com
@author yuhuangbin
spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-sidecar/src/main/java/com/alibaba/cloud/sidecar/SidecarHealthChecker.java