docker image download occurs: received unexpected HTTP status: 500 Internal Server Error

1, image download always appears error: received unexpected HTTP status: 500 Internal Server Error

2, try a variety of methods:

① Ali cloud docke accelerator; After registration, re-configured to download still happen;

② try plus a version number;

Originally I was directly copied https://hub.docker.com/r/library/ on:

After the change this way:

docker pull tomcat:9.0.30

Leaving behind only directly remove the version number, so immediately download good