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Posted to issues@flink.apache.org by "Gyula Fora (JIRA)" <ji...@apache.org> on 2015/09/14 11:26:45 UTC
[jira] [Created] (FLINK-2664) Remove partitioned states when set to
null
Gyula Fora created FLINK-2664:
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Summary: 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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