private void deferExpired() {
   for (Map.Entry<String, JedisPool> entry : jedisPools.entrySet()) {
     JedisPool jedisPool = entry.getValue();
     try {
       Jedis jedis = jedisPool.getResource();
       try {
         for (Node node : new HashSet<Node>(getRegistered())) {
           String key = NodeRegistryUtils.getNodeTypePath(clusterName, node.getNodeType());
           if (jedis.hset(
                   key, node.toFullString(), String.valueOf(SystemClock.now() + expirePeriod))
               == 1) {
             jedis.publish(key, Constants.REGISTER);
           }
         }
         if (lock.acquire(jedis)) {
           clean(jedis);
         }
         if (!replicate) {
           break; //  如果服务器端已同步数据,只需写入单台机器
         }
       } finally {
         jedis.close();
       }
     } catch (Throwable t) {
       LOGGER.warn(
           "Failed to write provider heartbeat to redis registry. registry: "
               + entry.getKey()
               + ", cause: "
               + t.getMessage(),
           t);
     }
   }
 }
 @Override
 protected void doRegister(Node node) {
   String key = NodeRegistryUtils.getNodeTypePath(clusterName, node.getNodeType());
   String expire = String.valueOf(SystemClock.now() + expirePeriod);
   boolean success = false;
   NodeRegistryException exception = null;
   for (Map.Entry<String, JedisPool> entry : jedisPools.entrySet()) {
     JedisPool jedisPool = entry.getValue();
     try {
       Jedis jedis = jedisPool.getResource();
       try {
         jedis.hset(key, node.toFullString(), expire);
         jedis.publish(key, Constants.REGISTER);
         success = true;
         if (!replicate) {
           break; //  如果服务器端已同步数据,只需写入单台机器
         }
       } finally {
         jedis.close();
       }
     } catch (Throwable t) {
       exception =
           new NodeRegistryException(
               "Failed to register node to redis registry. registry: "
                   + entry.getKey()
                   + ", node: "
                   + node
                   + ", cause: "
                   + t.getMessage(),
               t);
     }
   }
   if (exception != null) {
     if (success) {
       LOGGER.warn(exception.getMessage(), exception);
     } else {
       throw exception;
     }
   }
 }