[jira] [Resolved] (STORM-1756) Storm-kafka tests leak resources due to retained references to KafkaServer

["Stig Rohde Døssing (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STORM-1756?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Stig Rohde Døssing resolved STORM-1756.
---------------------------------------
    Resolution: Cannot Reproduce

Tried setting up some test classes with KafkaTestBroker fields and initializing them without nulling them in tearDown. Could not reproduce.

> Storm-kafka tests leak resources due to retained references to KafkaServer
> --------------------------------------------------------------------------
>
>                 Key: STORM-1756
>                 URL: https://issues.apache.org/jira/browse/STORM-1756
>             Project: Apache Storm
>          Issue Type: Bug
>          Components: storm-kafka
>            Reporter: Stig Rohde Døssing
>            Assignee: Stig Rohde Døssing
>
> Since JUnit keeps a reference to each test class until all tests for a module have run, the KafkaTestBroker fields are not eligible for garbage collection until all tests have run. KafkaTestBroker keeps a reference to KafkaServerStartable/KafkaServer, which allocates resources that are also not eligible for collection. This very quickly causes surefire to run out of memory if this class is used more than a few places.



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