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https://issues.apache.org/jira/browse/KAFKA-8245?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17031770#comment-17031770
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Matthias J. Sax commented on KAFKA-8245:
----------------------------------------
Different test `testDeleteEmptyGroup` is also flaky:
[https://builds.apache.org/job/kafka-pr-jdk11-scala2.13/4521/testReport/junit/kafka.admin/DeleteConsumerGroupsTest/testDeleteEmptyGroup/]
{quote}org.scalatest.exceptions.TestFailedException: The group did not become
empty as expected. at
org.scalatest.Assertions.newAssertionFailedException(Assertions.scala:530) at
org.scalatest.Assertions.newAssertionFailedException$(Assertions.scala:529) at
org.scalatest.Assertions$.newAssertionFailedException(Assertions.scala:1389) at
org.scalatest.Assertions.fail(Assertions.scala:1091) at
org.scalatest.Assertions.fail$(Assertions.scala:1087) at
org.scalatest.Assertions$.fail(Assertions.scala:1389) at
kafka.admin.DeleteConsumerGroupsTest.testDeleteEmptyGroup(DeleteConsumerGroupsTest.scala:176){quote}
STDOUT
{quote}Error: Deletion of some consumer groups failed:
* Group 'test.group' could not be deleted due to:
java.util.concurrent.ExecutionException:
org.apache.kafka.common.errors.GroupNotEmptyException: The group is not empty.
Error: Deletion of some consumer groups failed:
* Group 'missing.group' could not be deleted due to:
java.util.concurrent.ExecutionException:
org.apache.kafka.common.errors.GroupIdNotFoundException: The group id does not
exist
Error: Deletion of some consumer groups failed:
* Group 'missing.group' could not be deleted due to:
java.util.concurrent.ExecutionException:
org.apache.kafka.common.errors.GroupIdNotFoundException: The group id does not
exist.
These consumer groups were deleted successfully: 'test.group'
{quote}
> Flaky Test DeleteConsumerGroupsTest#testDeleteCmdAllGroups
> ----------------------------------------------------------
>
> Key: KAFKA-8245
> URL: https://issues.apache.org/jira/browse/KAFKA-8245
> Project: Kafka
> Issue Type: Bug
> Components: admin, unit tests
> Affects Versions: 2.3.0
> Reporter: Matthias J. Sax
> Assignee: Chia-Ping Tsai
> Priority: Critical
> Labels: flaky-test
> Fix For: 2.5.0
>
>
> [https://builds.apache.org/job/kafka-pr-jdk11-scala2.12/3781/testReport/junit/kafka.admin/DeleteConsumerGroupsTest/testDeleteCmdAllGroups/]
> {quote}java.lang.AssertionError: The group did become empty as expected. at
> kafka.utils.TestUtils$.fail(TestUtils.scala:381) at
> kafka.utils.TestUtils$.waitUntilTrue(TestUtils.scala:791) at
> kafka.admin.DeleteConsumerGroupsTest.testDeleteCmdAllGroups(DeleteConsumerGroupsTest.scala:148){quote}
> STDOUT
> {quote}Error: Deletion of some consumer groups failed: * Group 'test.group'
> could not be deleted due to: java.util.concurrent.ExecutionException:
> org.apache.kafka.common.errors.GroupNotEmptyException: The group is not
> empty. Error: Deletion of some consumer groups failed: * Group
> 'missing.group' could not be deleted due to:
> java.util.concurrent.ExecutionException:
> org.apache.kafka.common.errors.GroupIdNotFoundException: The group id does
> not exist. [2019-04-16 09:42:02,316] WARN Unable to read additional data from
> client sessionid 0x104f958dba30000, likely client has closed socket
> (org.apache.zookeeper.server.NIOServerCnxn:376) Deletion of requested
> consumer groups ('test.group') was successful. Error: Deletion of some
> consumer groups failed: * Group 'missing.group' could not be deleted due to:
> java.util.concurrent.ExecutionException:
> org.apache.kafka.common.errors.GroupIdNotFoundException: The group id does
> not exist. These consumer groups were deleted successfully:
> 'test.group'{quote}
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