urbandan commented on code in PR #12392:
URL: https://github.com/apache/kafka/pull/12392#discussion_r939928412
##########
clients/src/main/java/org/apache/kafka/clients/producer/internals/TransactionManager.java:
##########
@@ -241,12 +246,40 @@ synchronized TransactionalRequestResult
initializeTransactions(ProducerIdAndEpoc
.setProducerId(producerIdAndEpoch.producerId)
.setProducerEpoch(producerIdAndEpoch.epoch);
InitProducerIdHandler handler = new InitProducerIdHandler(new
InitProducerIdRequest.Builder(requestData),
- isEpochBump);
+ isEpochBump, false);
enqueueRequest(handler);
return handler.result;
}, State.INITIALIZING, "initTransactions");
}
+ synchronized void tryTransitioningIntoFatalBumpableError(RuntimeException
cause) {
+ if (currentState == State.FATAL_ERROR || currentState ==
State.FATAL_BUMPABLE_ERROR) {
+ // Already in a fatal state, skip
+ return;
+ }
+ String errorMessage = "Encountered unrecoverable error due to batch
client side timeout";
+ RuntimeException failure = cause == null
+ ? new KafkaException(errorMessage)
+ : new KafkaException(errorMessage, cause);
+ transitionToFatalBumpableError(failure);
+
+ // If an epoch bump is possible, try to fence the current transaction
by bumping
+ if (canBumpEpoch()) {
+ log.info("Invoking InitProducerId with current producer ID and
epoch {} in order to bump the epoch to fence the current transaction",
producerIdAndEpoch);
+ InitProducerIdRequestData requestData = new
InitProducerIdRequestData()
+ .setTransactionalId(transactionalId)
+ .setTransactionTimeoutMs(transactionTimeoutMs)
+ .setProducerId(producerIdAndEpoch.producerId)
+ .setProducerEpoch(producerIdAndEpoch.epoch);
+ InitProducerIdHandler handler = new InitProducerIdHandler(new
InitProducerIdRequest.Builder(requestData),
+ false, true);
+ enqueueRequest(handler);
+ } else {
+ log.info("Cannot bump epoch, transitioning into fatal error");
+ transitionToFatalError(failure);
Review Comment:
hi @showuon, do you think this explanation and solution makes sense? or
should I look into the other solution, in which the producer stays in a usable
state?
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