Getting io.vertx.core.impl.NoStackTraceThrowable: Cannot connect to any of the provided endpoints Error while trying to connect to redis in replication mode

[vasusethia1]

Version

I am facing issue for the redis version 4.4.0

Context

Getting io.vertx.core.impl.NoStackTraceThrowable: Cannot connect to any of the provided endpoints Error while trying to connect to redis in replication mode. I am defining a bean to return RedisApi. I am using aws redis

This is how I have configured my redis options

@Bean
public RedisAPI redisAPI() throws IOException {
		if(System.getenv("environment").equals("prod")){
			ConfigConstants.APPLICATION_JSON_PATH = "conf/application-prod.json";
		}
		if(configuration == null) configuration = new JsonObject(new String(Files.readAllBytes(Paths.get(ConfigConstants.APPLICATION_JSON_PATH))));
		List<String> serverList = (List<String>) configuration.getJsonObject("redisServer").getJsonArray("serverList")
				.getList();

		RedisOptions redisOptions = new RedisOptions()
				.setType(RedisClientType.REPLICATION)
				.setMaxWaitingHandlers(32)
				.addConnectionString("redis://ip.ng.0001.aps1.cache.amazonaws.com:6379")
				.addConnectionString("redis://ip2reader.ng.0001.aps1.cache.amazonaws.com:6379");

		Redis redisClient = Redis.createClient(vertx, redisOptions);
		return RedisAPI.api(redisClient);
	}

[vietj]

why are the connection string twice the same value ?

[vasusethia1]

Hi, by mistake I did that while editing my issue, but in reality those are the different connection strings, I have changed the value for the same

[colinchilds]

I'm running into the same issue trying to connect to an Elasticache cluster (cluster mode disabled) with one master and one slave. I was hoping to leverage the slave for reads.

[colinchilds]

I believe my issue was actually that Elasticache requires SSL, so I changed the scheme to rediss:// and now it's working for me. It looks like you may be making the same mistake.