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Posted to jira@kafka.apache.org by "Nikolay Izhikov (Jira)" <ji...@apache.org> on 2019/09/09 14:06:00 UTC

[jira] [Assigned] (KAFKA-8784) Remove default implementation of RocksDBConfigSetter#close

     [ https://issues.apache.org/jira/browse/KAFKA-8784?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nikolay Izhikov reassigned KAFKA-8784:
--------------------------------------

    Assignee: Nikolay Izhikov

> Remove default implementation of RocksDBConfigSetter#close
> ----------------------------------------------------------
>
>                 Key: KAFKA-8784
>                 URL: https://issues.apache.org/jira/browse/KAFKA-8784
>             Project: Kafka
>          Issue Type: Bug
>          Components: streams
>    Affects Versions: 3.0.0
>            Reporter: Sophie Blee-Goldman
>            Assignee: Nikolay Izhikov
>            Priority: Blocker
>
> In 2.3 we added a new method to RocksDBConfigSetter that will be called when a store is closed to clean up any resources that may have been created in #setConfig. Many large objects such as the block cache might be instantiated in that method, which will leak memory if not closed since they are backed by C++ objects.
> We should consider removing the default implementation to force users to pay attention to whether they may be leaking memory, even if it may be a no-op for many. 
>  



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