[jira] [Created] (FLINK-8467) Restoring job that does not use checkpointing from savepoint breaks

[Shang Yuanchun (Jira)]

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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