Jelmer Kuperus created FLINK-8467:
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Summary: Restoring job that does not use checkpointing from
savepoint breaks
Key: FLINK-8467
URL: https://issues.apache.org/jira/browse/FLINK-8467
Project: Flink
Issue Type: Bug
Components: State Backends, Checkpointing
Reporter: Jelmer Kuperus
When checkpointing is disabled, the Flink Kafka Consumer relies on the periodic
offsets that are committed to the broker by the internal Kafka client. Such a
job would, upon restart, continue from the committed offsets. However, in the
situation that the job is restored from a savepoint, then the offsets within
the savepoint supercede the broker-based offsets.
Here's a simple project that demonstrates the problem :
[https://github.com/jelmerk/flink-cancel-restart-job-without-checkpointing]
And a link to the mailing list thread :
http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Starting-a-job-that-does-not-use-checkpointing-from-a-savepoint-is-broken-td17874.html
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