Robert Metzger created FLINK-2491:
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Summary: Operators are not participating in state checkpointing in
some cases
Key: FLINK-2491
URL: https://issues.apache.org/jira/browse/FLINK-2491
Project: Flink
Issue Type: Bug
Components: Streaming
Affects Versions: 0.10
Reporter: Robert Metzger
Priority: Critical
While implementing a test case for the Kafka Consumer, I came across the
following bug:
Consider the following topology, with the operator parallelism in parentheses:
Source (2) --> Sink (1).
In this setup, the {{snapshotState()}} method is called on the source, but not
on the Sink.
The sink receives the generated data.
The only one of the two sources is generating data.
I've implemented a test case for this, you can find it here:
https://github.com/rmetzger/flink/tree/para_checkpoint_bug
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