Brian Zhou created FLINK-21178:
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Summary: Task failure will not trigger master hook's reset()
Key: FLINK-21178
URL: https://issues.apache.org/jira/browse/FLINK-21178
Project: Flink
Issue Type: Bug
Components: Runtime / Checkpointing
Affects Versions: 1.11.3, 1.12.0
Reporter: Brian Zhou
In Pravega Flink connector integration with Flink 1.12, we found an issue with
our no-checkpoint recovery test case [1].
We expect the recovery will call the ReaderCheckpointHook::reset() function
which was the behaviour before 1.12. However FLINK-20222 changes the logic, the
reset() call will only be called along with a global recovery. This causes
Pravega source data loss when failure happens before the first checkpoint.
[1]
[https://github.com/crazyzhou/flink-connectors/blob/da9f76d04404071471ebd86bf6889b307c9122ff/src/test/java/io/pravega/connectors/flink/FlinkPravegaReaderRGStateITCase.java#L78]
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