Query Dubbo services

Limits

You can switch between the old and new versions of the Service Query page.

• In the new version, the system uses the EDAS agent to query services in the EDAS registry, MSE-hosted registry, and user-managed registries, including ZooKeeper, Nacos, Eureka, and Consul.
• In the new version, you can query the services of all Dubbo versions and the services in all registries.
• In the old version, you can query only the services of Dubbo 2.7.x that are registered at the EDAS registry through Nacos.
• In the old version, you can query the services only in the EDAS registry.
• Outbound TCP connections over ports 8442, 8443, and 8883 must be allowed in the security group of your server. For more information about how to allow outbound connections in Elastic Compute Service, see Add security group rules.

View the service list

1. Log on to the EDAS console.
2. In the left-side navigation pane, choose Microservice Governance > Dubbo.
3. In the navigation tree of Dubbo, click Service Query.
4. In the top navigation bar, select a region. On the Service Query page, set Namespaces to view the Dubbo services of your account.
   You can view the following information about a Dubbo service: Service Name, Version, Grouping, Application Name, and Number of instances.

   If a large number of services exist, you can filter services by Service Name, IP, or Application Name. Filter keywords are not case-sensitive. The value of IP varies between ECS and Kubernetes clusters.

   • ECS cluster: The value is the IP address of an ECS instance.
   • Kubernetes cluster: The value is the IP address of a pod.

   Note If you can query the services of your applications on the old Service Query page but not on the new Service Query page, perform the following steps for troubleshooting:

   1. The new version of the Service Query page is released at 00:00:00 of January 20, 2020. You must restart your applications after this point in time so that they can be automatically mounted with the latest EDAS agent. Therefore, you must restart your applications before you query services on the new Service Query page.
   2. Check whether the microservice framework version is supported. For more information about the supported versions, see Limits.

View service details

1. Log on to the EDAS console.
2. In the left-side navigation pane, choose Microservice Governance > Dubbo.
3. In the navigation tree of Dubbo, click Service Query.
4. In the top navigation bar, select a region. On the Service Query page, set Namespaces. Then, click a service name in the service list.
5. In the Servive Detail panel, view the details of the service.

   The Servive Detail panel provides the following information: Basic Information, Service Invocation Relationship, and Metadata.

   • Basic Information
   • Service Invocation Relationship

     The Service Invocation Relationship section provides the Service Provider and Service Consumer tabs, which list information such as the IP address, port number, serialization method, and timeout period.

   • Metadata

     The Metadata section provides Metadata Metadata and Interface Metadata.

     • The Metadata Metadata section provides the metadata of the service and the EDAS-provided metadata for implementing microservice capabilities.
     • The Interface Metadata section provides Method Name, Parameters, and Return Type.