标签:Dubbo String Nacos2.0 ip clusterName 灰度 nacosDiscoveryProperties put port
/** * * <pre> * 如果通过配置dubbo.service.shutdown.wait=20000(默认10000,10秒)这种方式, * k8s.terminationGracePeriodSeconds=缩小时间间隔, * 则会有线上的在途服务突然中断或者其他错误, * * 借助k8s的容器层的preStop来做灰度下线,并不影响线上服务, * * a. 先让nacos服务主动下线, * b. 然后等待一段时间再关闭容器(尽量是5秒以上), * c. 设置nacos的心跳超时(可选) * * 主动下线方法中,1调nacos实例下线(no run),2.调nacos的超时(仅在springcloud服务中能和),3.调dubbo的hoop shutdown接口 * 最后选择用3.dubbo的shutdown接口 * * 不能做到绝对的灰度 * * </pre> * * @param map * @return 成功标记 */ public boolean nacosDown(Map map) { String serviceName = nacosDiscoveryProperties.getService(); String groupName = nacosDiscoveryProperties.getGroup(); String clusterName = nacosDiscoveryProperties.getClusterName(); String server = nacosDiscoveryProperties.getServerAddr(); String ip = nacosDiscoveryProperties.getIp(); int port = nacosDiscoveryProperties.getPort(); log.info("nacosDown deregister from nacos, serviceName:{}, groupName:{}, clusterName:{}, server:{}, ip:{}, port:{} ", serviceName, groupName, clusterName, server, ip, port); try { //由于它会比terminationGracePeriodSeconds先执行,所以如果立刻下线的话新的pods还没开好的话, //a. 先让nacos服务主动下线, // DubboShutdownHook.destroyAll(); //b. 然后等待一段时间再关闭容器(尽量是5秒以上), Thread.sleep(waitTime * 1000); //c. 设置nacos的心跳超时(可选) nacosSetTimeout(nacosDiscoveryProperties); log.info("nacosDown sucess deregister from nacos, serviceName:{}, clusterName:{}, ip:{}, port:{}", serviceName, clusterName, ip, port); } catch (Exception e) { e.printStackTrace(); } log.info("nacosDown deregister from nacos, serviceName:{}, groupName:{}, clusterName:{}, server:{}, ip:{}, port:{} ", serviceName, groupName, clusterName, server, ip, port); return true; } /** * c. 设置nacos的心跳超时(可选) * @param nacosDiscoveryProperties */ private void nacosSetTimeout(NacosDiscoveryProperties nacosDiscoveryProperties) { String serviceName = nacosDiscoveryProperties.getService(); String clusterName = nacosDiscoveryProperties.getClusterName(); String server = nacosDiscoveryProperties.getServerAddr(); String ip = nacosDiscoveryProperties.getIp(); int port = nacosDiscoveryProperties.getPort(); String nameSpace = nacosDiscoveryProperties.getNamespace(); String[] split = server.split(","); JSONObject variables = new JSONObject(); variables.put("namespaceId", nameSpace); variables.put("serviceName", serviceName); JSONArray instantsList = new JSONArray(); //实例ip JSONObject instantsOne = new JSONObject(); instantsOne.put("ip", ip); instantsOne.put("port", port); instantsOne.put("clusterName", clusterName); instantsList.add(instantsOne); variables.put("instances", instantsList.toJSONString()); JSONObject metaDataOne = new JSONObject(); metaDataOne.put(PreservedMetadataKeys.HEART_BEAT_INTERVAL, "1000"); // 设置心跳超时时间,单位为秒,这里将心跳超时时间设为500毫秒 // 即服务端6秒收不到客户端心跳,会将该客户端注册的实例设为不健康: metaDataOne.put(PreservedMetadataKeys.HEART_BEAT_TIMEOUT, "500"); // 设置实例删除的超时时间,单位为秒,这里将实例删除超时时间设为500毫秒, // 即服务端9秒收不到客户端心跳,会将该客户端注册的实例删除: metaDataOne.put(PreservedMetadataKeys.IP_DELETE_TIMEOUT, "500"); variables.put("metadata", metaDataOne.toJSONString()); nacosMetaUrl = split[0] + nacosMetaUrl; if (variables != null) { nacosMetaUrl = nacosMetaUrl + "?" + asUrlVariables(variables); } log.info("nacosDown rest , nacosMetaUrl:{} ", nacosMetaUrl); JSONObject result = RestUtil.put(nacosMetaUrl); log.info("nacosDown rest ok , nacosMetaUrl:{}, result:{} ", nacosMetaUrl, result.toJSONString()); } public static String asUrlVariables(JSONObject variables) { Map<String, Object> source = variables.getInnerMap(); Iterator<String> it = source.keySet().iterator(); StringBuilder urlVariables; String key; String value; for(urlVariables = new StringBuilder(); it.hasNext(); urlVariables.append("&").append(key).append("=").append(value)) { key = (String)it.next(); value = ""; Object object = source.get(key); if (object != null && !StrUtil.isEmpty(object.toString())) { value = object.toString(); } } return urlVariables.substring(1); }
标签:Dubbo,String,Nacos2.0,ip,clusterName,灰度,nacosDiscoveryProperties,put,port 来源: https://blog.csdn.net/shine0181/article/details/122308860
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