I upgraded from Spring 2.7.18 to Spring 3.3. Locally, I port-forwarded my Redis service and tested it, and everything worked fine. However, it does not work in production.

org.springframework.data.redis.RedisConnectionFailureException: Unable to connect to Redis
    at org.springframework.data.redis.connection.lettuce.LettuceConnectionFactory$ExceptionTranslatingConnectionProvider.translateException(LettuceConnectionFactory.java:1847) ~[spring-data-redis-3.3.0.jar:3.3.0]
    Suppressed: reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Assembly trace from producer [reactor.core.publisher.MonoSubscribeOnCallable] :
    reactor.core.publisher.Mono.subscribeOn(Mono.java:4618)
    ....