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https://issues.apache.org/jira/browse/KAFKA-7552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bill Bejeck resolved KAFKA-7552.
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Resolution: Fixed
Fixed with PR
[https://github.com/apache/kafka/pull/5740|https://github.com/apache/kafka/pull/5740.]
> StatefulProcessorNode tries to connect state store to processor before it is
> added
> ----------------------------------------------------------------------------------
>
> Key: KAFKA-7552
> URL: https://issues.apache.org/jira/browse/KAFKA-7552
> Project: Kafka
> Issue Type: Bug
> Components: streams
> Affects Versions: 2.0.0, 2.1.0
> Reporter: Adam Bellemare
> Priority: Minor
>
> StatefulProcessorNode tries to "connectProcessorAndStateStores" before
> "addStateStore" is called on the state store. This throws an exception.
> Current implementations of Kafka Streams do not appear to test for this, nor
> do any of the kafka streams applications use it. Discovered while looking to
> use the node for another ticket.
> [https://github.com/apache/kafka/blob/trunk/streams/src/main/java/org/apache/kafka/streams/kstream/internals/graph/StatefulProcessorNode.java#L86]
>
> Results in "org.apache.kafka.streams.errors.TopologyException: Invalid
> topology: StateStore <statestore-name> is not added yet."
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