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https://issues.apache.org/jira/browse/FLINK-4616?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roman Maier reassigned FLINK-4616:
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Assignee: Roman Maier
> Kafka consumer doesn't store last emmited watermarks per partition in state
> ---------------------------------------------------------------------------
>
> Key: FLINK-4616
> URL: https://issues.apache.org/jira/browse/FLINK-4616
> Project: Flink
> Issue Type: Bug
> Components: Kafka Connector
> Affects Versions: 1.1.1
> Reporter: Yuri Makhno
> Assignee: Roman Maier
> Fix For: 1.2.0, 1.1.4
>
>
> Kafka consumers stores in state only kafka offsets and doesn't store last
> emmited watermarks, this may go to wrong state when checkpoint is restored:
> Let's say our watermark is (timestamp - 10) and in case we have the following
> messages queue results will be different after checkpoint restore and during
> normal processing:
> A(ts = 30)
> B(ts = 35)
> ------ checkpoint goes here
> C(ts=15) -- this one should be filtered by next time window
> D(ts=60)
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