redis - 如何使用jedis客户端在java中监听redis集群的键空间通知？

Question

我正在设置一个服务器，它可以监听和发送有关 redis 数据库中发生的任何事件的消息。我成功地收到了有关 redis 主机和端口的新事件的通知，但无法为 redis 集群这样做。

GenericObjectPoolConfig config = new GenericObjectPoolConfig();
        config.setMaxTotal(30);
        config.setMaxWaitMillis(2000);

        Set<HostAndPort> jedisClusterNode = new HashSet<HostAndPort>();
        jedisClusterNode.add(new HostAndPort("127.0.0.1", 7001));

        JedisCluster cluster1 = new JedisCluster(jedisClusterNode, config);

        String redisProperties = cluster1.getClusterNodes().toString().replaceAll("[{}]", "");
        Set<HostAndPort> nodes = new HashSet<>();
        String[] mainArray = redisProperties.split(",");
        for (int i = 0; i < mainArray.length; i++) {
            String[] equalArray = mainArray[i].split("=");
            String mainData = equalArray[0];
            String[] ipPortPair = mainData.split(":");
            nodes.add(new HostAndPort(ipPortPair[0].trim(), Integer.valueOf(ipPortPair[1].trim())));
        }

        JedisCluster cluster = new JedisCluster(nodes, 10000, 1000, 1, config);

jedis.configSet("notify-keyspace-events", "AKE");//对于所有类型的事件 jedis.psubscribe(new KeyListenerCluster(), "keyevent@0:*");

我可以使用 redis-cluster 执行所有其他操作，但不能做一件事。

cluster.configSet("notify-keyspace-events", "AKE");//对于所有类型的事件 cluster.psubscribe(new KeyListenerCluster(), "keyevent@0:*");

Answer 1

我面临同样的问题，Keyspace 通知间歇性工作(10 次中有 6 或 7 次工作)。我读到需要订阅所有主节点才能获得通知。如果有帮助，我已将我的配置文件粘贴到下面:

KeySpaceNotificationMessageListener keySpaceNotificationMessageListener;

    @Value("${spring.redis.cluster.nodes}")
    private String hostsAndPorts;

    @Bean
    JedisConnectionFactory jedisConnectionFactory(RedisClusterConfiguration redisClusterConfiguration)
    {
        return new JedisConnectionFactory(redisClusterConfiguration);
    }

    @Bean
    MessageListenerAdapter messageListener() {
        return new MessageListenerAdapter(keySpaceNotificationMessageListener);
    }


    @Bean(name = "cacheManager1")
    @Primary
    public RedisCacheManager redisCacheManager1()
    {
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
                .disableCachingNullValues()
                .entryTtl(Duration.ofMinutes(1))
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(RedisSerializer.json()));

        redisCacheConfiguration.usePrefix();

        return RedisCacheManager.RedisCacheManagerBuilder.fromConnectionFactory(jedisConnectionFactory(redisClusterConfiguration()))
                .cacheDefaults(redisCacheConfiguration).build();

    }

    @Bean(name = "cacheManager2")
    public RedisCacheManager redisCacheManager2( JedisConnectionFactory jedisConnectionFactory)
    {
        RedisCacheConfiguration redisCacheConfiguration = RedisCacheConfiguration.defaultCacheConfig()
                .disableCachingNullValues()
                .entryTtl(Duration.ofDays(1))
                .serializeValuesWith(RedisSerializationContext.SerializationPair.fromSerializer(RedisSerializer.json()));

        redisCacheConfiguration.usePrefix();

        return RedisCacheManager.RedisCacheManagerBuilder.fromConnectionFactory(jedisConnectionFactory(redisClusterConfiguration()))
                .cacheDefaults(redisCacheConfiguration).build();

    }

    @Bean
    public RedisClusterConfiguration redisClusterConfiguration()
    {
        String [] redisHostAndPorts = hostsAndPorts.split(",");

        System.out.println(Arrays.toString(redisHostAndPorts));
        RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration(Arrays.asList(redisHostAndPorts));
        return redisClusterConfiguration;
    }

    @Bean
    RedisMessageListenerContainer redisContainer() {
        final RedisMessageListenerContainer container = new RedisMessageListenerContainer();
        container.setConnectionFactory(jedisConnectionFactory(redisClusterConfiguration()));
        container.addMessageListener(messageListener(), new PatternTopic("__keyspace@*:*"));
        container.setTaskExecutor(Executors.newFixedThreadPool(4));
        return container;
    }

    public void setKeySpaceNotificationMessageListener(KeySpaceNotificationMessageListener keySpaceNotificationMessageListener)
    {
        this.keySpaceNotificationMessageListener = keySpaceNotificationMessageListener;
    }