[jira] [Created] (KAFKA-13412) Retry of initTransactions after timeout may cause invalid transition

["Jason Gustafson (Jira)" <ji...@apache.org>]

Jason Gustafson created KAFKA-13412:
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             Summary: Retry of initTransactions after timeout may cause invalid transition
                 Key: KAFKA-13412
                 URL: https://issues.apache.org/jira/browse/KAFKA-13412
             Project: Kafka
          Issue Type: Bug
            Reporter: Jason Gustafson
            Assignee: Jason Gustafson


If `initTransactions()` cannot be completed before the timeout defined by `max.block.ms`, then the call will raise a `TimeoutException`. The user is expected to retry this, which is what Kafka Streams does. However, the producer will keep retrying the `InitProducerId` request in the background and it is possible for it to return before the retry call to `initTransaction()`. This leads to the following exception:
{code}
org.apache.kafka.common.KafkaException: TransactionalId blah: Invalid transition attempted from state READY to state INITIALIZING

	at org.apache.kafka.clients.producer.internals.TransactionManager.transitionTo(TransactionManager.java:1077)
	at org.apache.kafka.clients.producer.internals.TransactionManager.transitionTo(TransactionManager.java:1070)
	at org.apache.kafka.clients.producer.internals.TransactionManager.lambda$initializeTransactions$1(TransactionManager.java:336)
	at org.apache.kafka.clients.producer.internals.TransactionManager.handleCachedTransactionRequestResult(TransactionManager.java:1198)
	at org.apache.kafka.clients.producer.internals.TransactionManager.initializeTransactions(TransactionManager.java:333)
	at org.apache.kafka.clients.producer.internals.TransactionManager.initializeTransactions(TransactionManager.java:328)
	at org.apache.kafka.clients.producer.KafkaProducer.initTransactions(KafkaProducer.java:597)
{code}





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