Error while trying to configure redis-sentinel URI

[282ori]

Hi,
Im trying to use the redis connector in Openshift.
I need to connect to redis-sentinel through openshift Service resource. my configuration:
redis.uri=redis-sentinel://my-redis-sentinel-service:my-port/0?timeout=some-timeout&sentinelMasterId=myMasterId
when I tried that I received this error:
"Cannot build a RedisURI. One of the following must be provided Host, Socket or Sentinel"
also tried to configure:
redis.uri=redis-sentinel://my-redis-sentinel-service:my-port?timeout=some-timeout&sentinelMasterId=myMasterId (no default db)
redis.uri=redis-sentinel://my-redis-sentinel-service:my-port/0?timeout=some-timeout&sentinelMasterId=myMasterId
and also tried without the 'timeout'
Does anyone know what can cause this problem?

[rwas2505]

Running into this as well. The issue seems to be that sentinel connections can be a bit more nuanced. I have a redis setup where the sentinel password is different than the master redis password and the below code is needed to use the sentinel to get the master and then conduct operations:

    RedisURI uri = RedisURI.Builder.sentinel("host1.net", 26379)
      .withSentinel("host2.net", 26379)
      .withSentinel("host3.net", 26379)
      .withSentinelMasterId("mymaster")
      .withPassword("master-password") // master password, not sentinel
      .withDatabase(0)
      .build();

    // Add sentinel authentication to each sentinel node
    for (RedisURI sentinelUri : uri.getSentinels()) {
      sentinelUri.setPassword("sentinel-password");  // Sentinel node password
    }

    RedisClient client = RedisClient.create(uri);
    try {
      // First connect to sentinel to get master info
      StatefulRedisSentinelConnection<String, String> sentinelConnection = client.connectSentinel();
      RedisSentinelCommands<String, String> sentinelCommands = sentinelConnection.sync();

      // Get master info which includes host and port
      Map<String, String> masterInfo = sentinelCommands.master("mymaster");
      String masterHost = masterInfo.get("ip");
      int masterPort = Integer.parseInt(masterInfo.get("port"));

      // Create a new URI specifically for the master
      RedisURI masterUri = RedisURI.builder()
        .withHost(masterHost)
        .withPort(masterPort)
        .withPassword("master-password")  // Master password
        .withDatabase(0)
        .build();

      // Connect to master directly with authentication
      StatefulRedisConnection<String, String> masterConnection = client.connect(masterUri);
      RedisCommands<String, String> commands = masterConnection.sync();

      // Now you can execute Redis commands
      commands.set("mykey", "myvalue");
      String value = commands.get("mykey");
      System.out.println("Retrieved value: " + value);

      // Clean up connections
      masterConnection.close();
      sentinelConnection.close();

    } catch (Exception e) {
      e.printStackTrace();
    } finally {
      // Shutdown the client when done
      client.shutdown();
    }

Reference: redis/lettuce#1232