SpringBoot Elasticache JedisMovedDataException: MOVED - spring-boot

Question

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?

Answer 1

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.
See also:
Common application properties
Externalized Configuration