[jira] [Created] (KAFKA-16655) deflake ZKMigrationIntegrationTest.testDualWrite

["Alyssa Huang (Jira)" <ji...@apache.org>]

Alyssa Huang created KAFKA-16655:
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             Summary: deflake ZKMigrationIntegrationTest.testDualWrite
                 Key: KAFKA-16655
                 URL: https://issues.apache.org/jira/browse/KAFKA-16655
             Project: Kafka
          Issue Type: Improvement
            Reporter: Alyssa Huang
            Assignee: Alyssa Huang


{code:java}
Failed to map supported failure 'org.opentest4j.AssertionFailedError: expected: not equal but was: <0>' with mapper 'org.gradle.api.internal.tasks.testing.failure.mappers.OpenTestAssertionFailedMapper@59b5251d': Cannot invoke "Object.getClass()" because "obj" is null

> Task :core:test
kafka.zk.ZkMigrationIntegrationTest.testDualWrite(ClusterInstance)[8] failed, log available in /Users/ahuang/ce-kafka/core/build/reports/testOutput/kafka.zk.ZkMigrationIntegrationTest.testDualWrite(ClusterInstance)[8].test.stdout

Gradle Test Run :core:test > Gradle Test Executor 8 > ZkMigrationIntegrationTest > testDualWrite(ClusterInstance) > testDualWrite [8] Type=ZK, MetadataVersion=3.8-IV0, Security=PLAINTEXT FAILED
    org.opentest4j.AssertionFailedError: expected: not equal but was: <0>
        at app//org.junit.jupiter.api.AssertionFailureBuilder.build(AssertionFailureBuilder.java:152)
        at app//org.junit.jupiter.api.AssertionFailureBuilder.buildAndThrow(AssertionFailureBuilder.java:132)
        at app//org.junit.jupiter.api.AssertNotEquals.failEqual(AssertNotEquals.java:277)
        at app//org.junit.jupiter.api.AssertNotEquals.assertNotEquals(AssertNotEquals.java:119)
        at app//org.junit.jupiter.api.AssertNotEquals.assertNotEquals(AssertNotEquals.java:111)
        at app//org.junit.jupiter.api.Assertions.assertNotEquals(Assertions.java:2121)
        at app//kafka.zk.ZkMigrationIntegrationTest.testDualWrite(ZkMigrationIntegrationTest.scala:995) {code}

This test occasionally fails due to stale broker epoch exceptions, which in turn causes allocate producer ids to fail.

Also fixes {{sendAllocateProducerIds}} erroneously returning 0 as the `producerIdStart` in error cases (because `onComplete` only accounts for timeouts and ignores any other error code)


{code:java}
[2024-04-12 18:45:08,820] INFO [ControllerServer id=3000] allocateProducerIds: event failed with StaleBrokerEpochException in 19 microseconds. (org.apache.kafka.controller.QuorumController:765) {code}



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