[jira] [Commented] (KAFKA-18956) Enable junit tests to optionally use more than one KRaft controller

[Chia-Ping Tsai (Jira)]

    [ 
https://issues.apache.org/jira/browse/KAFKA-18956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17934256#comment-17934256
 ] 

Chia-Ping Tsai commented on KAFKA-18956:
----------------------------------------

[~kevinwu2412] excuse me, IIRC, our new test infra supports to run multiple 
controllers already. see 
https://github.com/apache/kafka/blob/6551e87815caddee02658534efccba5dc95d2dab/tools/src/test/java/org/apache/kafka/tools/MetadataQuorumCommandTest.java#L47

{code:java}
    @ClusterTests({
        @ClusterTest(brokers = 2, controllers = 2),
        @ClusterTest(brokers = 2, controllers = 1),
        @ClusterTest(brokers = 1, controllers = 2),
    })
    public void testDescribeQuorumReplicationSuccessful(ClusterInstance 
cluster) throws InterruptedException {
        cluster.waitForReadyBrokers();
        String describeOutput = ToolsTestUtils.captureStandardOut(() ->
            MetadataQuorumCommand.mainNoExit("--bootstrap-server", 
cluster.bootstrapServers(), "describe", "--replication")
        );
{code}
 
Please correct me if I misunderstand your ticket. thanks!

> Enable junit tests to optionally use more than one KRaft controller
> -------------------------------------------------------------------
>
>                 Key: KAFKA-18956
>                 URL: https://issues.apache.org/jira/browse/KAFKA-18956
>             Project: Kafka
>          Issue Type: Task
>            Reporter: Kevin Wu
>            Assignee: TengYao Chi
>            Priority: Major
>
> Currently, the junit tests create just one `controllerServer`. Enabling the 
> test framework to support multiple `controllerServers` would allow for junit 
> tests to test behavior during KRaft leadership changes.



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