[jira] [Created] (KAFKA-4238) consumer-subscription not working, when accessing a newly created topic immediately after its creation with the AdminUtils

["Florian Witteler (JIRA)" <ji...@apache.org>]

Florian Witteler created KAFKA-4238:
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             Summary: consumer-subscription not working, when accessing a newly created topic immediately after its creation with the AdminUtils
                 Key: KAFKA-4238
                 URL: https://issues.apache.org/jira/browse/KAFKA-4238
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 0.10.0.1, 0.10.0.0
            Reporter: Florian Witteler


I created a test-project to reproduce the bug.
https://github.com/FloWi/kafka-topic-creation-bug

We use a docker container that creates a fresh topic before a testsuite gets executed (see {{trait FreshKafkaTopics}}). That trait uses the AdminUtils to create the topic. 

If we access the newly created topic directly after its creation, the subscriber is broken. It sometimes works though (<5%), so it seems to be a race-condition.

If I put a {{Thread.sleep(1000)}} after the topic-creation, everything's fine though.

So, the problem is twofold:
- {{AdminUtils.createTopic}} should block until the topic-creation is completed
- {{new KafkaConsumer[String, String](props).subscribe(util.Arrays.asList(topic))}} should throw an exception, when the topic is "not ready"



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