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https://issues.apache.org/jira/browse/FLINK-2324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14644130#comment-14644130
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ASF GitHub Bot commented on FLINK-2324:
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Github user StephanEwen commented on the pull request:
https://github.com/apache/flink/pull/937#issuecomment-125524456
I think we should not change the existing tests but add new ones. The
current `StreamCheckpointingITCase` is there to test the non-partitioned state.
Update: I just saw that is has actually been changed before, so we lost
test coverage for the `Checkpointed` interface. That's not good...
> 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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