Help Center/ Application Performance Management/ User Guide（2.0）/ Application Topology
Updated on 2025-11-18 GMT+08:00
View PDF
Share

Application Topology

On the tracing page, you can view the topology of a single call, as well as the overall topology between different services based on collected metric data. There are two types of application topologies:

  • Single-component topology: topology of a single component under an environment. You can also view the call relationships of direct and indirect upstream and downstream components.
  • Global application topology: topology of some or all components under an application.

Each line in the topology indicates the call relationship between services within a period. The statistics can be collected from the calling or called party. You can click a line to view the call trend on the right. The topology can also display the call relationships between middleware. On the topology, you can view the call relationships between services and check whether the calls between services are normal to quickly locate faults.

Viewing the Topology of a Component

  1. Log in to the APM console.
  2. Click on the left and choose Application > Application Performance Management.
  3. In the navigation pane, choose Application Monitoring > Metrics.
  4. In the tree on the left, click next to the target environment.
  5. Click the Topology tab to view the call and dependency relationships of the component. For details, see Topology.

    Figure 1 Viewing the topology of a component

Viewing the Global Topology

  1. In the navigation pane, choose Application Monitoring > Metrics.
  2. In the tree on the left, click an application. The application details page is displayed.
  3. Click the Global Topology tab to view the call and dependency relationships of all components under the application.

    • Click a line between components. The detailed data such as the number of requests, average RT, and error rate is displayed on the right.
    • Enable Display only calls between components to shield the calls of external components.
    • Use tags to filter calls.
    • Click to obtain the latest information in the statistical period.
    • Click to download the topology.
    Figure 2 Viewing the global topology

  4. Right-click a component and then click Viewing a Call Chain or Viewing Indicators. For details, see 7.
  5. Click a line in the diagram. The detailed data such as the number of requests, average RT, and error rate, and line graphs are displayed on the right.

    • Click the drop-down list in the upper left corner of the line graph and select an instance.
    • Click in the upper right corner of the line graph. All instance views corresponding to a parameter are displayed.
    • The diagram shows the call relationships between components and enables you to check the traces between components.
      • Redirection upon trace query is supported only by Agent 2.5.3 or later.
      • Click Viewing a Call Chain. The trace page is displayed, showing the trace information between components.