Spring Boot actuator: 为什么Redis集群的Health状态不正确？

Question

我有一个 spring 引导项目，其中使用 Jedis 配置了 redis 集群。配置文件如下：

application.yml 文件:

RedisClusterConfig.java 文件:

@Configuration

public class RedisClusterConfig {

private final Logger logger = LoggerFactory.getLogger(this.getClass());

@Value("${redis.cluster.host1}") private String HOST1;
@Value("${redis.cluster.port1}") private Integer PORT1;

@Value("${redis.cluster.host2}") private String HOST2;
@Value("${redis.cluster.port2}") private Integer PORT2;

@Value("${redis.cluster.host3}") private String HOST3;
@Value("${redis.cluster.port3}") private Integer PORT3;

@Value("${redis.cluster.host4}") private String HOST4;
@Value("${redis.cluster.port4}") private Integer PORT4;

@Value("${redis.cluster.host5}") private String HOST5;
@Value("${redis.cluster.port5}") private Integer PORT5;

@Value("${redis.cluster.host6}") private String HOST6;
@Value("${redis.cluster.port6}") private Integer PORT6;

@Bean
public JedisCluster jedisCluster() {
    Set<HostAndPort> jedisClusterNodes = new HashSet<HostAndPort>();
    //Jedis Cluster will attempt to discover cluster nodes automatically
    jedisClusterNodes.add(new HostAndPort(HOST1, PORT1));
    jedisClusterNodes.add(new HostAndPort(HOST2, PORT2));
    jedisClusterNodes.add(new HostAndPort(HOST3, PORT3));

    if(StringUtils.isNotBlank(HOST4)){
        jedisClusterNodes.add(new HostAndPort(HOST4, PORT4));
    }else{
        logger.warn("jedis cluster HOST4 not configured.");
    }

    if(StringUtils.isNotBlank(HOST5)){
        jedisClusterNodes.add(new HostAndPort(HOST5, PORT5));
    }else{
        logger.warn("jedis cluster HOST5 not configured.");
    }

    if(StringUtils.isNotBlank(HOST6)){
        jedisClusterNodes.add(new HostAndPort(HOST6, PORT6));
    }else{
        logger.warn("jedis cluster HOST6 not configured.");
    }
    JedisCluster jc = new JedisCluster(jedisClusterNodes, new JedisPoolConfig());
    return jc;
}

}

使用此配置，一切正常。我可以write/read数据to/fromredis集群。但是当我访问http://localhost:64001/health获取执行器健康状态时，它returns结果如下：

{"status":"DOWN","diskSpace":{"status":"UP","total":120031539200,"free" :33381117952,"threshold":10485760},"redis":{"status":"DOWN","error":"org.springframework.data.redis.RedisConnectionFailureException: Cannot get Jedis connection; nested exception is redis.clients.jedis.exceptions.JedisConnectionException: Could not get a resource from the pool"},"mongo": {"status":"UP","version":"3.2.3"},"db":{"status":"UP","dataSource1" :{"status":"UP","database":"MySQL","hello":1},"dataSource2":{"status":"UP","database":"MySQL","hello":1},"dataSource3":{"status":"UP","database": "MySQL","hello":1}}}

可以看到Jedis的错误提示

BTW，pom.xml中的相关依赖：

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.0.RELEASE</version>
</parent>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-redis</artifactId>
    </dependency>

为了让 /health 状态恢复到 "UP" 有什么我可能会错过的吗？谢谢！

更多信息：跟踪启动，发现RedisHealthIndicator传递了一个错误的factory，host=localhost，port=6379，应该是配置的集群主机和端口？

public RedisHealthIndicator(RedisConnectionFactory connectionFactory) {
    Assert.notNull(connectionFactory, "ConnectionFactory must not be null");
    this.redisConnectionFactory = connectionFactory;
}

Answer 1

最后，我通过重新配置redis解决了问题，如下所示：

spring: redis: cluster: nodes: - 192.168.0.17:6390 - 192.168.0.17:6391 - 192.168.0.17:6392 - 192.168.0.9:6390 - 192.168.0.9:6391 - 192.168.0.9:6392

Spring Boot actuator: 为什么Redis集群的Health状态不正确？

Spring Boot actuator: Why is the Health status of Redis cluster not correct?

redis

spring-data-redis

spring-boot