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} -- This message was sent by Atlassian JIRA (v7.6.3#76005)