Konstantine Karantasis created KAFKA-6773:
---------------------------------------------
Summary: Kafka consumer without group.id crashes when requesting
offset on a topic-partition
Key: KAFKA-6773
URL: https://issues.apache.org/jira/browse/KAFKA-6773
Project: Kafka
Issue Type: Bug
Components: core
Affects Versions: 1.2.0, 1.1.1
Reporter: Konstantine Karantasis
Assignee: Jason Gustafson
Fix For: 1.2.0, 1.1.1
After recent changes, when a KafkaConsumer requests the current offset on a
topic partition (e.g. via a call to {{position}}), the following exception is
thrown if the consumer doesn't belong to a consumer group ( {{group.id}} is
unset):
{code:java}
org.apache.kafka.common.KafkaException: Unexpected error in fetch offset
response: The configured groupId is invalid at
org.apache.kafka.clients.consumer.internals.ConsumerCoordinator$OffsetFetchResponseHandler.handle(ConsumerCoordinator.java:835)
at
org.apache.kafka.clients.consumer.internals.ConsumerCoordinator$OffsetFetchResponseHandler.handle(ConsumerCoordinator.java:818)
at
org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:822)
at
org.apache.kafka.clients.consumer.internals.AbstractCoordinator$CoordinatorResponseHandler.onSuccess(AbstractCoordinator.java:802)
at
org.apache.kafka.clients.consumer.internals.RequestFuture$1.onSuccess(RequestFuture.java:204)
at
org.apache.kafka.clients.consumer.internals.RequestFuture.fireSuccess(RequestFuture.java:167)
at
org.apache.kafka.clients.consumer.internals.RequestFuture.complete(RequestFuture.java:127)
at
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient$RequestFutureCompletionHandler.fireCompletion(ConsumerNetworkClient.java:574)
at
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.firePendingCompletedRequests(ConsumerNetworkClient.java:389)
at
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:292)
at
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:232)
at
org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:192)
at
org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.fetchCommittedOffsets(ConsumerCoordinator.java:469)
at
org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.refreshCommittedOffsetsIfNeeded(ConsumerCoordinator.java:446)
at
org.apache.kafka.clients.consumer.KafkaConsumer.updateFetchPositions(KafkaConsumer.java:1788)
at
org.apache.kafka.clients.consumer.KafkaConsumer.position(KafkaConsumer.java:1429)
{code}
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