[FLINK-11889] Remove "stop" signal along with Stoppable interfaces

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.9.0
• Component/s: API / DataStream
• Labels: pull-request-available
• Assignee: Kostas Kloudas
• Reporter: Aljoscha Krettek
• Created: 12/Mar/19 13:49
• Updated: 18/Apr/19 15:32
• Resolved: 18/Apr/19 14:03

Description

During the ML discussion of FLIP-34 we realised that it would be beneficial for this new feature to replace the existing "stop" functionality. The current "stop" functionality cannot be used because no real-world sources support the functionality. Therefore, I think it is save to remove because it should not break existing workflows.

The issue proposes completely removing the old stop feature, introduced via FLINK-2111, as preparation for FLIP-34.

We have to be careful when doing this because it touches quite a few things. Basically, we have to do a manual revert of this commit: https://github.com/apache/flink/commit/bdd4024e20fdfb0accb6121a68780ce3a0c218c0

Issue Links

• links to: GitHub Pull Request #8209