[jira] [Updated] (KAFKA-3728) EndToEndAuthorizationTest offsets_topic misconfigured

["Edoardo Comar (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/KAFKA-3728?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edoardo Comar updated KAFKA-3728:
---------------------------------
    Summary: EndToEndAuthorizationTest offsets_topic misconfigured  (was: inconsistent behavior of Consumer.poll() when assigned vs subscribed)

> EndToEndAuthorizationTest offsets_topic misconfigured
> -----------------------------------------------------
>
>                 Key: KAFKA-3728
>                 URL: https://issues.apache.org/jira/browse/KAFKA-3728
>             Project: Kafka
>          Issue Type: Bug
>            Reporter: Edoardo Comar
>
> A consumer that is manually assigned a topic-partition is able to consume messages that a consumer that subscribes to the topic can not.
> To reproduce : take the test 
> EndToEndAuthorizationTest.testProduceConsume 
> (eg the SaslSslEndToEndAuthorizationTest implementation)
>  
> it passes ( = messages are consumed) 
> if the consumer is assigned the single topic-partition
>           consumers.head.assign(List(tp).asJava)
> but fails 
> if the consumer subscribes to the topic - changing the line to :
>       consumers.head.subscribe(List(topic).asJava)
> The failure when subscribed shows this error about synchronization:
>  org.apache.kafka.common.KafkaException: Unexpected error from SyncGroup: Messages are rejected since there are fewer in-sync replicas than required.
>   at org.apache.kafka.clients.consumer.internals.AbstractCoordinator$SyncGroupResponseHandler.handle(AbstractCoordinator.java:455)
> The test passes in both cases (subscribe and assign) with the setting
>   this.serverConfig.setProperty(KafkaConfig.MinInSyncReplicasProp, "1")



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