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("testmaster")
                .sentinel("r-bp10noxlhcoim2****.redis.rds.aliyuncs.com", 6379);
        JedisPoolConfig poolConfig = new JedisPoolConfig();
        ...
        JedisConnectionFactory connectionFactory = new JedisConnectionFactory(sentinelConfig, poolConfig);
        return connectionFactory;
    }

Parameters:

• master: the name of the master. You can use the default value, such as testmaster.

• sentinel: the VPC endpoint and port number of the instance. Separate the endpoint and port number with a comma (,). Example: "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 = "testmaster"

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

Parameters:

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

• SENTINEL_MASTER_NAME: the name of the master. You can use the default value, such as testmaster.

In this example, a Java client of the earliest version is used. The client must meet the following requirements:

• Jedis 3.6.0 or later is used.

• Lettuce 5.3.0.RELEASE or later is used.

• Spring Data Redis 2.5.1 or later is used. The spring.redis.sentinel.password parameter is specified for the Spring Data Redis client.

        String masterName = "any-name";
        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);

Parameters:

• masterName: the name of the master. You can use the default value, such as testmaster.

• sentinels.add: the VPC endpoint and port number of the instance. Example: r-bp10noxlhcoim2****.redis.rds.aliyuncs.com:6379.

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

  Note

  • If you use the default account whose username is the same as the instance ID, directly enter the password.

  • If you use a custom account, enter the password in the <user>:<password> format. A password in this format can also be used for default account logon. For example, if the username of a custom account is testaccount and the password is Rp829dlwa, enter testaccount:Rp829dlwa as the password.

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'))

Parameters:

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

• SENTINEL_MASTER_NAME: the name of the master in the Redis Sentinel configuration. The name is set to redis_master and cannot be changed.

• SENTINEL_REDIS_PWD: the account password of the instance.