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Posted to issues@flink.apache.org by "Gyula Fora (JIRA)" <ji...@apache.org> on 2015/12/30 17:50:49 UTC

[jira] [Created] (FLINK-3193) Add optional bloomfilter to sql state backend

Gyula Fora created FLINK-3193:
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             Summary: Add optional bloomfilter to sql state backend
                 Key: FLINK-3193
                 URL: https://issues.apache.org/jira/browse/FLINK-3193
             Project: Flink
          Issue Type: Improvement
          Components: Streaming
            Reporter: Gyula Fora
            Assignee: Gyula Fora


In order to increase the performance of detecting unseen keys, a bloomfilter could be used before checking the database for any key.

As the bloomfilter's size might be big it should be written efficiently to the non-partitioned state backend.  



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