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Posted to issues@flink.apache.org by "Gyula Fora (JIRA)" <ji...@apache.org> on 2015/09/14 18:35:46 UTC

[jira] [Resolved] (FLINK-2664) Remove partitioned states when set to null

     [ https://issues.apache.org/jira/browse/FLINK-2664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gyula Fora resolved FLINK-2664.
-------------------------------
    Resolution: Fixed

> Remove partitioned states when set to null
> ------------------------------------------
>
>                 Key: FLINK-2664
>                 URL: https://issues.apache.org/jira/browse/FLINK-2664
>             Project: Flink
>          Issue Type: Improvement
>          Components: Streaming
>            Reporter: Gyula Fora
>            Assignee: Gyula Fora
>
> Currently there is no way to remove a specific key from the partitioned state stored at streaming operators, which can cause unnecessary state accumulation.
> I suggest to remove the partitioned state for the current input when the state is set to null, and upon next retrieval simply return the default value. This allows the implementation of streaming programs that can garbage collect their own unwanted state.



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