dubbo status is UNKOWN

[ghost]

Description

After checking the dubbo service working correctly, then added the dependency of spring-boot-actuator to enable actuator and checked http://localhost:9091/health, it shows the status of dubbo is UNKOWN.

Is it normal? a bug? or the configuration is incorrect ?

Thanks

Configurations

pom.xml

    <!-- spring boot starter -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter</artifactId>
    </dependency>
    <!-- mvc -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
    <!-- actuator -->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>

    <!-- lombok -->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <scope>provided</scope>
    </dependency>

    <dependency>
      <groupId>com.at.spring</groupId>
      <artifactId>dubbo-spring-boot-demo-api</artifactId>
      <version>0.0.1-SNAPSHOT</version>
    </dependency>
    
    <!-- dubbo-spring-boot-starter
            0.1.x => spring-boot 1.x
            0.2.x => spring-boot 2.x
    -->
    <dependency>
      <groupId>com.alibaba.boot</groupId>
      <artifactId>dubbo-spring-boot-starter</artifactId>
      <version>0.1.0</version>
      <exclusions>
        <exclusion>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context</artifactId>
        </exclusion>
        <exclusion>
          <groupId>org.springframework</groupId>
          <artifactId>spring-beans</artifactId>
        </exclusion>
        <exclusion>
          <groupId>org.springframework</groupId>
          <artifactId>spring-web</artifactId>
        </exclusion>
        <exclusion>
          <groupId>org.springframework</groupId>
          <artifactId>spring-core</artifactId>
        </exclusion>
        <exclusion>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter</artifactId>
        </exclusion>
        <exclusion>
          <groupId>log4j</groupId>
          <artifactId>log4j</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>com.101tec</groupId>
      <artifactId>zkclient</artifactId>
      <version>0.10</version>
    </dependency>
    

application.properties

# Spring boot application
spring.application.name = dubbo-provider-demo
server.port = 9090
management.port = 9091

# Base packages to scan Dubbo Components (e.g., @Service, @Reference)
dubbo.scan.basePackages  = com.at.spring.service.impl

# Dubbo Config properties
## ApplicationConfig Bean
dubbo.application.id = dubbo-spring-boot-demo-provider
dubbo.application.name = dubbo-spring-boot-demo-provider

## ProtocolConfig Bean
dubbo.protocol.id = dubbo
dubbo.protocol.name = dubbo
dubbo.protocol.port = 12345

## RegistryConfig Bean
dubbo.registry.id = zookeeper
dubbo.registry.address = zookeeper://127.0.0.1:2181



### actuator

## Available values: registry, spring, datasource, memory, load, server, threadpool
#management.health.dubbo.status.defaults = memory,load
management.health.dubbo.status.defaults = registry,memory,load

## Override management.health.dubbo.status.defaults, separated by comma
#management.health.dubbo.status.extras = 
#management.health.dubbo.status.extras = 

## Not available in 0.1.0
#management.health.dubbo.enabled = false
#management.health.dubbo.enabled = true

## dubbo endpoint
#endpoints.dubbo.enabled = false
endpoints.dubbo.enabled = true
#endpoints.dubbo.sensitive = true
endpoints.dubbo.sensitive = false
## Spring Security
#management.security.enabled = true
management.security.enabled = false

[mercyblitz]

Please take a look at load item in this endpoint

[ghost]

@mercyblitz Hi, thanks for your response. But what does it mean? How could I find the info of the load item?

[mercyblitz]

@alphatan
Please reference code of com.alibaba.dubbo.common.status.support.LoadStatusChecker

[ghost]

@mercyblitz Thanks for the tips. But I think this is still a problem. Why should it be closed ?

---

My research of this problem.

According to this answer of the question "Alternate of getSystemLoadAverage() for Windows?", the method getSystemLoadAverage of java.lang.management.OperatingSystemMXBean would return -1 in Windows.

It'd be suggested to use com.sun.management.OperatingSystemMXBean and its getSystemCpuLoad() and getProcessCpuLoad() instead.

So, the conclusion (of my original questions) is:

1. This is a normal behavior, and it's a windows-specific issue.
2. It can be better if it can be implemented in a different way.
3. The configuration is correct.

[mercyblitz]

@alphatan Thanks for your advise, LoadStatusChecker would be changed the algorithm of load.

[mercyblitz]

Issue trace on apache/dubbo#1641