SpringBoot Elasticache JedisMovedDataException: MO

Trying to use SpringBoot with SpringData with Elasticache:

application.properties:

spring.redis.host=XXXX-dev.XXXX.clusXXXcfg.XXX.cache.amazonaws.com
spring.redis.port=6379

CacheConfiguration:

@Configuration
@PropertySource("classpath:application.properties")
public class CacheConfiguration {


@Value("${spring.redis.host}")
private String redisHostName;

@Bean
public RedisTemplate<String, Company> redisTemplate() {
    RedisTemplate<String, Company> template = new RedisTemplate();
    template.setConnectionFactory(jedisConnectionFactory());
    return template;
}

@Bean
JedisConnectionFactory jedisConnectionFactory() {
    JedisConnectionFactory factory = new JedisConnectionFactory();
    factory.setHostName(redisHostName);
    factory.setUsePool(true);
    return factory;
}


@Bean
public static PropertySourcesPlaceholderConfigurer propertySourcesPlaceholderConfigurer() {
    return new PropertySourcesPlaceholderConfigurer();
}

}

Service call:

@Autowired
RedisTemplate<String, Company> redisTemplate;

private ValueOperations valueOperations;

@PostConstruct
private void init() {
    valueOperations = redisTemplate.opsForValue();
}

@Override
public String createOtp(Company company) {
    String token = UUID.randomUUID().toString();
    valueOperations.set(token, company);
    valueOperations.getOperations().expire(token, 5, TimeUnit.MINUTES);
    return token;
}

Error:

org.springframework.data.redis.ClusterRedirectException: Redirect: slot 7228 to 10...:6379.*

redis.clients.jedis.exceptions.JedisMovedDataException: MOVED 7228 10...:6379.*

The question is - what is wrong with configuration?

You're running your Elasticache in Redis Cluster mode (only Redis Cluster responds with MOVED) but the connection factory is configured in standalone mode.

Spring Boot can auto-configure all the things you've set up manually for you. Basically, remove your CacheConfiguration class (or at least remove the majority of code):

@Configuration
public class CacheConfiguration {

  @Bean
  public RedisTemplate<String, Company> redisTemplate(RedisConnectionFactory connectionFactory) {
      RedisTemplate<String, Company> template = new RedisTemplate();
      template.setConnectionFactory(connectionFactory);
      return template;
  }
}

And then configure the following properties in your application.properties file:

spring.redis.cluster.nodes=<node_host>:<port> # Comma-separated list of "host:port" pairs to bootstrap from.

Spring Boot loads application.properties by default and the Redis auto-config configures a RedisTemplate<Object, Object> bean by default. Specializing beans is a valid use-case – do not duplicate what's already provided by the auto-config, especially if you want to achieve what auto-config does.