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https://issues.apache.org/jira/browse/STORM-2538?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hugo Louro closed STORM-2538.
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Resolution: Won't Fix
Marked as Won't Fix in favor of STORM-2542
> New kafka spout emits duplicate tuples
> --------------------------------------
>
> Key: STORM-2538
> URL: https://issues.apache.org/jira/browse/STORM-2538
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-kafka-client
> Affects Versions: 2.0.0, 1.x
> Reporter: Priyank Shah
> Assignee: Hugo Louro
> Priority: Critical
> Time Spent: 4h 10m
> Remaining Estimate: 0h
>
> Currently, KafkaSpout in storm-kafka-client can cause duplicate tuples to be
> emitted. Reason is the implementation of ConsumerRebalanceListener interface
> is called by kafka everytime a new executor comes up. However, on
> PartitionsRevoked we already have some in flight tuples and are emitting the
> same ones from the new executor on which the onPartitionsAssigned was called.
> We need to make sure that we emit only one tuple per kafka message.
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