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• I had searched in the issues and found no similar feature requirement.

Description

• In the latest code, we have dolphinscheduler_env.sh to set environment variables. However, a few default values are missing.

  dolphinscheduler/script/env/dolphinscheduler_env.sh

  Lines 33 to 36 in 88d2803

  	export SPRING_DATASOURCE_DRIVER_CLASS_NAME
  	export SPRING_DATASOURCE_URL
  	export SPRING_DATASOURCE_USERNAME
  	export SPRING_DATASOURCE_PASSWORD

• Also, we need some examples and docs for Dolphin users about how to config dolphinscheduler_env.sh
• https://github.com/apache/dolphinscheduler/blob/dev/script/env/dolphinscheduler_env.sh

Use case

• BTW, after building the project, we will have ./tools/bin/dolphinscheduler_env.sh and ./bin/env/dolphinscheduler_env.sh. May I ask why we need both of them?

Related issues

No response

Are you willing to submit a PR?

• Yes I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct