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doc-exports/docs/apig/umn/apig-en-faq-181016018.html
Chen, Junjie 91c429e341 APIG UMN 20230331 version 
Reviewed-by: Hasko, Vladimir <vladimir.hasko@t-systems.com>
Co-authored-by: Chen, Junjie <chenjunjie@huawei.com>
Co-committed-by: Chen, Junjie <chenjunjie@huawei.com>
2023-06-01 08:59:08 +00:00

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Why Am I Seeing the Message "No backend available"?

  • Check whether the backend service is accessible, and modify the backend service if it is inaccessible.
  • Check the ECS security group configurations of the backend service and verify that the required port has been enabled.
  • Check whether ACL configurations of the VPC restrict the communication between the API gateway and the subnet where the backend service is located.
  • If you use a VPC channel, check whether the service port, health check port, and backend servers of the VPC channel have been correctly configured.
Parent topic: API Calling