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https://issues.apache.org/jira/browse/FLINK-6239?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16533055#comment-16533055
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Stephan Ewen commented on FLINK-6239:
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Can you explain more how you expect this to work? Specifically:
- Would all operators among which this is shared have read and write access?
- Or will there be one "owner" that writes the state and other operators that
can read the state.
- What would the consistency model behind this be?
> Sharing of State Across Operators
> ---------------------------------
>
> Key: FLINK-6239
> URL: https://issues.apache.org/jira/browse/FLINK-6239
> Project: Flink
> Issue Type: Improvement
> Components: DataStream API
> Affects Versions: 1.1.4
> Reporter: Elias Levy
> Priority: Major
>
> Currently state cannot be shared across operators. On a keyed stream, the
> state is implicitly keyed by the operator id, in addition to the stream key.
> This can make it more difficult and inefficient to implement complex
> topologies, where multiple operator may need to access the same state. It
> would be value to be able to access keyed value and map stated across
> operators.
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