Naming rules and length limits for Bridges

[moluzhui]

Make sure you read and understand http://emqtt.io/docs/v2/index.html.
Use one of the two templates below and delete the rest.

• BUG REPORT

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BUG REPORT

Expected behavior

Are there any restrictions on bridge naming?Because there was an inability to bridge when I modified the emqx_bridge_mqtt.conf file through the sed command

EMQ version

Which branch are you on? If you know the Git revision then add it here as well.
emqx/emqx:v3.2.4

Docker version

Which docker-engine version?

docker -v
Docker version 18.09.7, build 2d0083d

System

What system do you use?
Ubuntu 18.04.3 LTS

Hardware

How is the host machine?
Ubuntu 18.04.3 LTS

[Rory-Z]

@moluzhui I can't figure out it. Could you provide more details description of it? It may help us to reproduce it.

Thanks!