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Backend Service Fails to Be Invoked

Cause Analysis

The possible causes are as follows:

  • The backend service address is incorrect.
  • The timeout duration is incorrect.

    If a backend service fails to return a response within the configured timeout duration, APIC displays a message indicating that the backend service fails to be invoked.

  • The security group of the Elastic Cloud Server (ECS) on which the backend service is deployed cannot be accessed.

Solution

  • Change the backend service address in the API definition.
  • Increase the backend timeout duration in the API definition.
  • Ensure that the inbound and outbound ports and protocols configured for services are correct.
Parent topic: Service Integration