az eventhubs eventhub create fails with Event Hub names longer than 50 characters

Describe the bug

Event Hub creation fails when creating with a name longer than 50 characters. This conflicts with the 256 character limit quoted in the quotas and limits documentation. I was also able to create Event Hubs with up to 256 character names as recently as 2.0.77.

Command Name az eventhubs eventhub create

Errors:

validation error: Parameter 'event_hub_name' must have length less than 50.

To Reproduce:

• Run the Event Hub Create command az eventhubs eventhub create -g rg-name --namespace-name ns-name -n {name longer than 50 characters}

Expected Behavior

I would expect that the command should create the desired Event Hub as long as the name is less than 257 characters.

Environment Summary

Windows-10-10.0.19041-SP0
Python 3.6.8
Installer: MSI

azure-cli 2.10.1

[samuelkoppes]

This issue should be resolved, please upgrade to the latest version of the SDK and retest.

[yonzhan]

eventhubs service team should look into this issue.