[FLINK-24645] Implements the feedback mechanism and the controller operators

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: ml-2.0.0
• Component/s: Library / Machine Learning
• Labels: pull-request-available
• Assignee: Yun Gao
• Reporter: Yun Gao
• Created: 26/Oct/21 09:30
• Updated: 15/Dec/21 03:14
• Resolved: 29/Oct/21 08:06

Description

To iterates record, we need specialized mechanism to feedback the records from the tail of the iteration body back to the head of the iteration body. 

Issue Links

• links to: GitHub Pull Request #7