wenxuanguan created KAFKA-8451:
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Summary: transaction support multiple producer instance
Key: KAFKA-8451
URL: https://issues.apache.org/jira/browse/KAFKA-8451
Project: Kafka
Issue Type: Bug
Reporter: wenxuanguan
It's common in distributed system that multiple producer instances send message
in one transaction concurrently, and if one producer failed, the other producer
abort transaction.
However, when multiple producer share the same txn id, throw the following
exception:
org.apache.kafka.common.KafkaException: Cannot execute transactional method
because we are in an error state
at
org.apache.kafka.clients.producer.internals.TransactionManager.maybeFailWithError(TransactionManager.java:784)
at
org.apache.kafka.clients.producer.internals.TransactionManager.beginTransaction(TransactionManager.java:215)
at
org.apache.kafka.clients.producer.KafkaProducer.beginTransaction(KafkaProducer.java:606)
at
com.matt.test.kafka.producer.ProducerTransactionExample.main(ProducerTransactionExample.java:68)
Caused by: org.apache.kafka.common.errors.ProducerFencedException: Producer
attempted an operation with an old epoch. Either there is a newer producer with
the same transactionalId, or the producer's transaction has been expired by the
broker.
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