[HUDI-416] Improve hint information for Cli

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.5.1
• Component/s: cli
• Labels: pull-request-available
• Assignee: Unassigned
• Reporter: hong dongdong
• Created: 17/Dec/19 07:50
• Updated: 25/Dec/19 12:19
• Resolved: 25/Dec/19 12:19

Description

Right now, cli always give error information: 

Command 'desc' was found but is not currently available (type 'help' then ENTER to learn about this command)

but it is confused to user. We can give a hint clearly like:

Command failed java.lang.NullPointerException: There is no hudi dataset. Please use connect command to set dataset first

Issue Links

• links to: GitHub Pull Request #1110