JedisConnectionException-读取超时错误

Question

我正在尝试使用Spring Data Redis绝地组合连接到AWS ElastiCache Redis。[Redis Cluster enabled，因此它有Cluster Config endpoint，有3个碎片-每个碎片有1个主节点和2个副本节点]

读取超时错误。

原因：redis。客户。绝地武士。例外。JedisConnectionException:java。网SocketTimeoutException:读取超时

AWS Redis服务器版本：5.0.3/群集模式：已启用/SSL:已启用/Auth:已启用（通过密码）

库——Spring数据redis:2.1.6。释放/绝地武士：2.9.0

Telnet在6379个端口上与AWS Redis所有节点和群集配置endpoint连接。

我自己试过Redisson，它连接到AWS Redis，没有任何问题。

所以，Redis本身没有问题，Spring Data Redis与绝地结合也没有问题。

我的代码是这样的-

        RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration();
        redisClusterConfiguration.setClusterNodes(listOfRedisNode);
        redisClusterConfiguration.setPassword(passwordString);


        JedisClientConfiguration.JedisClientConfigurationBuilder jedisClientConfiguration = JedisClientConfiguration.builder();
        jedisClientConfiguration.connectTimeout(Duration.ofSeconds(60));
        jedisClientConfiguration.useSsl();
        jedisClientConfiguration.usePooling();


        JedisConnectionFactory jedisConnectionFactory = new JedisConnectionFactory(redisClusterConfiguration, jedisClientConfiguration.build() );
        jedisConnectionFactory.afterPropertiesSet();

        final RedisTemplate<String, Serializable> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(jedisConnectionFactory);
        redisTemplate.setKeySerializer(new JdkSerializationRedisSerializer());
        redisTemplate.setValueSerializer(new JdkSerializationRedisSerializer());
        redisTemplate.afterPropertiesSet();

        System.out.println(redisTemplate.getClientList().size());

        StringRedisConnection stringRedisConnectionlettuce = new DefaultStringRedisConnection(redisTemplate.getConnectionFactory().getConnection());
        final String message2 = stringRedisConnectionlettuce.echo("Hello");
        System.out.println("Hello".equals(message2));

读取超时错误-

Exception in thread "main" java.lang.reflect.InvocationTargetException
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)
    at org.springframework.boot.loader.Launcher.launch(Launcher.java:50)
    at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51)
Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: Read timed out
    at redis.clients.util.RedisInputStream.ensureFill(RedisInputStream.java:202)
    at redis.clients.util.RedisInputStream.readByte(RedisInputStream.java:40)
    at redis.clients.jedis.Protocol.process(Protocol.java:151)
    at redis.clients.jedis.Protocol.read(Protocol.java:215)
    at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:340)
    at redis.clients.jedis.Connection.getStatusCodeReply(Connection.java:239)
    at redis.clients.jedis.BinaryClient.connect(BinaryClient.java:96)
    at redis.clients.jedis.Connection.sendCommand(Connection.java:126)
    at redis.clients.jedis.Connection.sendCommand(Connection.java:117)
    at redis.clients.jedis.BinaryClient.auth(BinaryClient.java:564)
    at redis.clients.jedis.BinaryJedis.auth(BinaryJedis.java:2138)
    at redis.clients.jedis.JedisClusterConnectionHandler.initializeSlotsCache(JedisClusterConnectionHandler.java:36)
    at redis.clients.jedis.JedisClusterConnectionHandler.<init>(JedisClusterConnectionHandler.java:17)
    at redis.clients.jedis.JedisSlotBasedConnectionHandler.<init>(JedisSlotBasedConnectionHandler.java:24)
    at redis.clients.jedis.BinaryJedisCluster.<init>(BinaryJedisCluster.java:54)
    at redis.clients.jedis.JedisCluster.<init>(JedisCluster.java:93)
    at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.createCluster(JedisConnectionFactory.java:418)
    at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.createCluster(JedisConnectionFactory.java:388)
    at org.springframework.data.redis.connection.jedis.JedisConnectionFactory.afterPropertiesSet(JedisConnectionFactory.java:345)
    at io.github.deepshiv126.springdataredis.example.MySpringBootApplication.main(MySpringBootApplication.java:306)
    ... 8 more
Caused by: java.net.SocketTimeoutException: Read timed out
    at java.net.SocketInputStream.socketRead0(Native Method)
    at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)
    at java.net.SocketInputStream.read(SocketInputStream.java:171)
    at java.net.SocketInputStream.read(SocketInputStream.java:141)
    at java.net.SocketInputStream.read(SocketInputStream.java:127)
    at redis.clients.util.RedisInputStream.ensureFill(RedisInputStream.java:196)
    ... 27 more

我研究了Spring源代码和Jedis源代码——我假设它不使用SSL连接；

JedisConnectionFactory-afterPropertiesSet（）--试图创建集群--在这个集群下，它正在尝试初始化LotusScache，它用密码向Redis服务器发出了AUTH命令--这就是“读取超时”发生的地方；

我了解本地redis——你可以进去运行auth命令进行身份验证。但我猜AWS Redis可能无法做到这一点，它甚至在运行AUTH命令之前就需要SSL连接——为什么绝地武士不使用SSL连接？

当使用SSL与Redis和Spring Data Redis一起使用时，另一个线程“无法获得Jedis连接”，Redis说，使用类似于JedisPool的东西——但Spring Data Redis的JedisConnectionFactory不接受JedisPool。还有别的办法吗？

Jedispool jedispool=new Jedispool（"rediss：//"clusterConfigEndPoint"： 6379"）；

另一个问题-其他库使用redis ssl连接作为redis://-如何使用redis客户端使用ssl连接，

任何帮助都将不胜感激！！

谢谢

Answer 1

我已经有很长一段时间面临这个问题，但是在下面的配置中，它与AWS ElasticCache-启用SSL的Redis（传输中的加密）完美配合

下面，Maven依赖项被用作springboot应用程序的一部分

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
        <!-- Latest jedis with SSL support -->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>3.6.0</version>
        </dependency>

@Component
public class RedisConfig {

    @Bean
    public JedisConnectionFactory jedisConnectionFactory() {

        RedisStandaloneConfiguration redisStandaloneConfiguration = new RedisStandaloneConfiguration();
        redisStandaloneConfiguration.setHostName("PrimaryEndpoint of AWS Elastic Cache Cluster");
        redisStandaloneConfiguration.setPort(6379);
        redisStandaloneConfiguration.setUsername("userName");
        
        redisStandaloneConfiguration.setPassword(new String("password").toCharArray());

        JedisClientConfigurationBuilder jedisClientConfiguration = JedisClientConfiguration.builder();
        jedisClientConfiguration.connectTimeout(Duration.ofSeconds(60));// 60s connection timeout
        jedisClientConfiguration.useSsl();
        jedisClientConfiguration.usePooling();

        JedisConnectionFactory jedisConFactory = new JedisConnectionFactory(redisStandaloneConfiguration,
                jedisClientConfiguration.build());
        jedisConFactory.afterPropertiesSet();

        return jedisConFactory;
    }

    @Bean(value = "redisTemplate")
    public RedisTemplate<String, Object> redisTemplate(RedisConnectionFactory redisConnectionFactory) {
        RedisTemplate<String, Object> redisTemplate = new RedisTemplate<>();
        redisTemplate.setConnectionFactory(redisConnectionFactory);
        return redisTemplate;
    }

}