Piotr Nowojski created FLINK-21469:
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Summary: stop-with-savepoint --drain doesn't advance watermark for
sources chained to MultipleInputStreamTask
Key: FLINK-21469
URL: https://issues.apache.org/jira/browse/FLINK-21469
Project: Flink
Issue Type: Bug
Components: Runtime / Task
Affects Versions: 1.12.1, 1.13.0
Reporter: Piotr Nowojski
{{StreamTask#advanceToEndOfEventTime()}} is used to bump the watermark to
{{MAX_WATERMARK}}. However this method is only implemented for the source tasks
(legacy and FLIP-27). Because of that watermarks are not advanced to end of
time if job has sources chained to {{MultipleInputStreamTask}}.
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