[jira] [Created] (KAFKA-13583) Fix FetchRequestBetweenDifferentIbpTest flaky tests

["David Jacot (Jira)" <ji...@apache.org>]

David Jacot created KAFKA-13583:
-----------------------------------

             Summary: Fix FetchRequestBetweenDifferentIbpTest flaky tests
                 Key: KAFKA-13583
                 URL: https://issues.apache.org/jira/browse/KAFKA-13583
             Project: Kafka
          Issue Type: Improvement
            Reporter: David Jacot


`FetchRequestBetweenDifferentIbpTest`'s tests often fails with:

```
org.opentest4j.AssertionFailedError: expected: <2> but was: <1>
 at org.junit.jupiter.api.AssertionUtils.fail(AssertionUtils.java:55)
 at org.junit.jupiter.api.AssertionUtils.failNotEqual(AssertionUtils.java:62)
 at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:150)
 at org.junit.jupiter.api.AssertEquals.assertEquals(AssertEquals.java:145)
 at org.junit.jupiter.api.Assertions.assertEquals(Assertions.java:510)
 at integration.kafka.server.FetchRequestBetweenDifferentIbpTest.testControllerSwitchingIBP(FetchRequestBetweenDifferentIbpTest.scala:113)
 at integration.kafka.server.FetchRequestBetweenDifferentIbpTest.testControllerOldToNewIBP(FetchRequestBetweenDifferentIbpTest.scala:87)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
 at java.lang.reflect.Method.invoke(Method.java:498)
```

This might be due to [https://github.com/apache/kafka/commit/e8818e234a879d5ca45accba0121f43f45381f4a] where we reduced the poll timeout.



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