Tair (Redis® OSS-Compatible):Use the Sentinel-compatible mode to connect to an instance

In this example, Spring Data Redis 2.4.2 is used.

    @Bean
    public JedisConnectionFactory connectionFactory() {
        RedisSentinelConfiguration sentinelConfig = new RedisSentinelConfiguration()
                .master("redis_master")
                .sentinel("r-bp10noxlhcoim2****.redis.rds.aliyuncs.com", 6379);
        JedisPoolConfig poolConfig = new JedisPoolConfig();
        ...
        JedisConnectionFactory connectionFactory = new JedisConnectionFactory(sentinelConfig, poolConfig);
        return connectionFactory;
    }

Parameter description:

• master: the SENTINEL name, which must be fixed as redis_master.

• sentinel: the VPC endpoint and port number of the instance, separated by a comma (,), such as "r-bp10noxlhcoim2****.redis.rds.aliyuncs.com", 6379.

In this example, Python 3.9 and redis-py 4.3.6 are used.

from redis.sentinel import Sentinel
SENTINEL_HOST = "r-bp10noxlhcoim2****.redis.rds.aliyuncs.com"
SENTINEL_PORT = 6379
SENTINEL_MASTER_NAME = "redis_master"

sentinel = Sentinel([(SENTINEL_HOST, SENTINEL_PORT)])
r = sentinel.master_for(SENTINEL_MASTER_NAME, db=0)
r.set('foo', 'bar')
print(r.get('foo'))

Parameter description:

• SENTINEL_HOST and SENTINEL_PORT: the VPC endpoint and port number of the instance.

• SENTINEL_MASTER_NAME: the SENTINEL name, which must be fixed as redis_master.

This example uses the minimum versions of Java clients. The client version requirements are as follows:

• Jedis 3.6.1 or later.

• Lettuce 6.3.0.RELEASE or later.

• Spring Data Redis 2.5.1 or later. You also need to configure the spring.redis.sentinel.password parameter.

        String masterName = "redis_master";
        Set<String> sentinels = new HashSet<>();
        sentinels.add("r-bp10noxlhcoim2****.redis.rds.aliyuncs.com:6379");
        GenericObjectPoolConfig poolConfig = new GenericObjectPoolConfig();
        String dbPassword = "testaccount:Rp829dlwa";
        String sentinelPassword = "testaccount:Rp829dlwa";
        JedisSentinelPool jedisSentinelPool =
                new JedisSentinelPool(masterName, sentinels, poolConfig,
                        2000, 2000, dbPassword,
                        0, null, 2000, 2000,
                        sentinelPassword, null);

    String masterName = "redis_master";
    String sentinelNodes = "r-bp10noxlhcoim2****.redis.rds.aliyuncs.com:6379";
    String sentinelPassword = "testaccount:Rp829dlwa";
    RedisURI redisURI = RedisURI.create("redis-sentinel://" + sentinelPassword + "@" + sentinelNodes + "#" + masterName);
    redisURI.getSentinels().forEach(it -> it.setPassword(sentinelPassword));
    RedisClient client = RedisClient.create(redisURI);
    RedisCommands<String, String> sync = client.connect().sync();
    System.out.println(sync.set("key", "value"));
    System.out.println(sync.get("key"));
    client.close();

Parameter description:

• masterName: the SENTINEL name, which must be fixed as redis_master.

• sentinels.add/sentinelNodes: the VPC endpoint and port number of the instance, in the format of r-bp10noxlhcoim2****.redis.rds.aliyuncs.com:6379.

• dbPassword and sentinelPassword: the password of the instance account. The password format varies depending on the account you select. If you forget the password, you can reset it. For more information, see Modify or reset the password.

  Note

  • Default account (the account named after the instance ID): Enter the password directly.

  • Newly created account: The password format is <user>:<password>. The default account also supports this authentication method. For example, if the custom account is testaccount and the password is Rp829dlwa, the password must be entered as testaccount:Rp829dlwa.

In this example, Python 3.9 and redis-py 4.3.6 are used.

from redis.sentinel import Sentinel
SENTINEL_HOST = "r-bp10noxlhcoim2****.rds.aliyuncs.com"
SENTINEL_PORT = 6379
SENTINEL_MASTER_NAME = "redis_master"  # Note: This name cannot be changed
SENTINEL_REDIS_PWD = "testaccount:Rp829dlwa"

conf = {
    'password': SENTINEL_REDIS_PWD,
}

sentinel = Sentinel([(SENTINEL_HOST, SENTINEL_PORT)], sentinel_kwargs=conf)
r = sentinel.master_for(SENTINEL_MASTER_NAME, db=0, **conf)
r.set('foo', 'bar')
print(r.get('foo'))

Parameter description:

• SENTINEL_HOST and SENTINEL_PORT: the VPC endpoint and port number of the instance.

• SENTINEL_MASTER_NAME: the SENTINEL name, which must be fixed as redis_master.

• SENTINEL_REDIS_PWD: the password of the instance account.