Spring Data Redis问题与连接池有关

我正在使用Spring Data Redis并且需要 JedisPoolConfig 的问题 . 我已经配置了 RedisTemplate 如下：

@Bean
JedisPoolConfig jedisPoolConfig() {

    JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
    return jedisPoolConfig;
}

@Bean
public RedisConnectionFactory redisConnectionFactory() {

    JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory(jedisPoolConfig());
    jedisConnectionFactory.setHostName(redisSettings.getServer().getHost());
    jedisConnectionFactory.setPort(redisSettings.getServer().getPort());
    return jedisConnectionFactory;
}

@Bean
public RedisTemplate<String, Integer> redisTemplate(RedisConnectionFactory redisConnectionFactory) {

    RedisTemplate<String, Integer> redisTemplate = new RedisTemplate<String, Integer>();
    redisTemplate.setConnectionFactory(redisConnectionFactory);
    redisTemplate.setKeySerializer(new StringRedisSerializer());
    redisTemplate.setEnableTransactionSupport(true);
    return redisTemplate;
}

我有一个标记为 @Transactional 的服务，它反过来调用一个 @Repository ，它增加了Redis中的一些键：

@Service
@Transactional
public class MyService {

    @Autowired
    MyRepository myRepository;

    public void recordStats() {

        myRepository.recordStats();
    }

}


@Repository
public class MyRepository {

    @Resource(name="redisTemplate")
    ValueOperations<String, Integer> valueOperations;

    public void recordStats() {

        valueOperations.increment("KEY01", 1);
        valueOperations.increment("KEY02", 1);
        valueOperations.increment("KEY03", 1);
        valueOperations.increment("KEY04", 1);
        valueOperations.increment("KEY05", 1);
        valueOperations.increment("KEY06", 1);
        valueOperations.increment("KEY07", 1);
        valueOperations.increment("KEY08", 1);
        valueOperations.increment("KEY09", 1);
        valueOperations.increment("KEY10", 1);
        valueOperations.increment("KEY11", 1);
    }
}

当我调用 myService.recordStats() 并在调试中逐步执行代码时，它会在尝试增加KEY11时挂起，最终会因 redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool 而失败 . 如果我修改 JedisPoolConfig 以增加MaxTotal如下：

@Bean
JedisPoolConfig jedisPoolConfig() {

    JedisPoolConfig jedisPoolConfig = new JedisPoolConfig();
    jedisPoolConfig.setMaxTotal(128);
    return jedisPoolConfig;
}

然后问题消失了，我可以在事务中递增所有11个键 . 似乎每个 valueOperations.increment 呼叫都从池中获取另一个连接 . 这是正确的，还是我在某处遇到配置问题？