[FLINK-19835] Don't emit intermediate watermarks from sources in BATCH execution mode

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Implemented
• Fix Version/s: 1.12.0
• Component/s: API / DataStream
• Labels: pull-request-available
• Assignee: Aljoscha Krettek
• Reporter: Aljoscha Krettek
• Created: 27/Oct/20 13:42
• Updated: 30/Oct/20 11:48
• Resolved: 30/Oct/20 11:48

Description

Currently, both sources and watermark/timestamp operators can emit watermarks that we don't really need. We only need a final watermark in BATCH execution mode.

Issue Links

• is cloned by: FLINK-19837 Don't emit intermediate watermarks from watermark operators in BATCH execution mode
• links to: GitHub Pull Request #13828