ijuma commented on a change in pull request #9022:
URL: https://github.com/apache/kafka/pull/9022#discussion_r460416797



##########
File path: 
core/src/test/scala/unit/kafka/admin/TopicCommandWithAdminClientTest.scala
##########
@@ -673,10 +678,14 @@ class TopicCommandWithAdminClientTest extends 
KafkaServerTestHarness with Loggin
       Collections.singletonList(new NewTopic(testTopicName, partitions, 
replicationFactor).configs(configMap))).all().get()
     waitForTopicCreated(testTopicName)
     TestUtils.generateAndProduceMessages(servers, testTopicName, numMessages = 
10, acks = -1)
+    Thread.sleep(10)

Review comment:
       We can call `flush` on the producer to force it to send the messages.




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