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Posted to dev@flink.apache.org by "Gyula Fora (JIRA)" <ji...@apache.org> on 2015/07/07 10:34:04 UTC

[jira] [Created] (FLINK-2324) Rework partitioned state storage

Gyula Fora created FLINK-2324:
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             Summary: Rework partitioned state storage
                 Key: FLINK-2324
                 URL: https://issues.apache.org/jira/browse/FLINK-2324
             Project: Flink
          Issue Type: Improvement
            Reporter: Gyula Fora
            Assignee: Gyula Fora


Partitioned states are currently stored per-key in statehandles. This is alright for in-memory storage but is very inefficient for HDFS. 

The logic behind the current mechanism is that this approach provides a way to repartition a state without fetching the data from the external storage and only manipulating handles.

We should come up with a solution that can achieve both.



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