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I have a Kafka stream application that works fine. However when I add the property:

properties.put(StreamsConfig.PROCESSING_GUARANTEE_CONFIG, StreamsConfig.EXACTLY_ONCE);

Then I get the following error: 

Exception in thread "trade-state-decider-a271c9f6-d9d8-488c-b91c-57cdfaf54894-StreamThread-1" org.apache.kafka.streams.errors.StreamsException: stream-thread [trade-state-decider-a271c9f6-d9d8-488c-b91c-57cdfaf54894-StreamThread-1] Failed to rebalance.


Caused by: org.apache.kafka.common.errors.TransactionalIdAuthorizationException: Transactional Id authorization failed.

Anyone has any idea about what could course this?

OneCricketeer
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Lasse Frandsen
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1 Answers1

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As the error indicates, your application does not have permissions to use transactions. Using transactions requires special permissions that you can enable via ACLs.

See the docs for more details on what permission you need to grant: https://docs.confluent.io/current/kafka/authorization.html#enabling-authorization-for-idempotent-and-transactional-apis

Matthias J. Sax
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