ASF GitHub Bot commented on FLINK-5467:

Github user uce commented on the issue:

    Thanks! I verified that the adjusted test fails before this fix and runs 
fine after the fix. I'm going to merge this to master and release-1.2.

> Stateless chained tasks set legacy operator state
> -------------------------------------------------
>                 Key: FLINK-5467
>                 URL: https://issues.apache.org/jira/browse/FLINK-5467
>             Project: Flink
>          Issue Type: Bug
>          Components: State Backends, Checkpointing
>            Reporter: Ufuk Celebi
>            Assignee: Stefan Richter
> I discovered this while trying to rescale a job with a Kafka source with a 
> chained stateless operator.
> Looking into it, it turns out that this fails, because the checkpointed state 
> contains legacy operator state for the chained operator although it is state 
> less.
> /cc [~aljoscha] You mentioned that this might be a possible duplicate?

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