[jira] [Created] (KAFKA-4571) Consumer fails to retrieve messages if started before producer

["Sergiu Hlihor (JIRA)" <ji...@apache.org>]

Sergiu Hlihor created KAFKA-4571:
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             Summary: Consumer fails to retrieve messages if started before producer
                 Key: KAFKA-4571
                 URL: https://issues.apache.org/jira/browse/KAFKA-4571
             Project: Kafka
          Issue Type: Bug
          Components: clients
    Affects Versions: 0.10.1.1
         Environment: Ubuntu Desktop 16.04 LTS, Oracle Java 8 1.8.0_101, Core i7 4770K
            Reporter: Sergiu Hlihor


In a configuration where topic was never created before, starting the consumer before the producer leads to no message being consumed (KafkaConsumer.pool() returns always an instance of ConsumerRecords with 0 count ). 

Starting another consumer on the same group, same topic after messages were produced is still not consuming them. Starting another consumer with another groupId appears to be working.

In the consumer logs I see: WARN  NetworkClient - Error while fetching metadata with correlation id 1 : {measurements021=LEADER_NOT_AVAILABLE} 

Both producer and consumer were launched from inside same JVM. 

The configuration used is the standard one found in Kafka distribution. If this is a configuration issue, please suggest any change that I should do.

Thank you



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