我有以下骆驼对Redis进行投票：

                from("timer://pollredis?fixedRate=true&period=5")
                    // poll redis
                    .setHeader("CamelRedis.Command", constant("LPOP"))
                    .setHeader("CamelRedis.Key", constant("shipments"))
                    // from redis, it is a producer, fetch with .to() !
                    .to(redisUri)
                    //
                    .choice().when(simple("${in.body} == null")).stop().otherwise()
                    //
                    .to("direct:internal").end();


    JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory();
    jedisConnectionFactory.afterPropertiesSet();

    RedisTemplate<?, ?> redisTemplate = new RedisTemplate();
    redisTemplate.setConnectionFactory(jedisConnectionFactory);
    redisTemplate.setDefaultSerializer(new StringRedisSerializer());
    redisTemplate.afterPropertiesSet();

    SimpleRegistry registry = new SimpleRegistry();
    registry.put("redisTemplate", redisTemplate);

而且效果很好。但是，当我将redisUri从

redisUri = spring-redis://localhost:6379?redisTemplate=#redisTemplate

至

redisUri = spring-redis://[stuff].xavwv8.ng.0001.euw1.cache.amazonaws.com:6379?redisTemplate=#redisTemplate

我收到以下错误：

11:42:49.754 INFO  Failed delivery for (MessageId: ID-ip-10-12-22-168-43293-1465299763162-0-1 on ExchangeId: ID-ip-10-12-22-168-43293-1465299763162-0-2). On delivery attempt: 0 caught: org.springframework.data.redis.RedisConnectionFailureException: Cannot get Jedis connection; nested exception is redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool | org.apache.camel.util.CamelLogger.log(CamelLogger.java:159) [Camel (camel-1) thread #0 - timer://pollredis]

我检查了通过telnet到并使用redis-cli可以访问elasticache。

Could not get a resource from the pool连接到远程主机时出现此错误是什么？

我的本地redis和elasticache redis都运行2.8.24。运行骆驼2.17.1。