Gwen Shapira created KAFKA-1858:
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Summary: Make ServerShutdownTest a bit less flaky
Key: KAFKA-1858
URL: https://issues.apache.org/jira/browse/KAFKA-1858
Project: Kafka
Issue Type: Bug
Reporter: Gwen Shapira
ServerShutdownTest currently:
* Starts a KafkaServer
* Does stuff
* Stops the server
* Counts if there are any live kafka threads
This is fine on its own. But when running in a test suite (i.e gradle test),
the test is very very sensitive to any other test freeing all resources. If you
start a server in a previous test and forgot to close it, the
ServerShutdownTest will find threads from the previous test and fail.
This makes for a flaky test that is pretty challenging to troubleshoot.
I suggest counting the threads at the beginning and end of each test in the
class, and only failing if the number at the end is greater than the number at
the beginning.
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