Stephan Ewen created FLINK-2683:
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Summary: Add utilities for heap-backed keyed state in time panes
Key: FLINK-2683
URL: https://issues.apache.org/jira/browse/FLINK-2683
Project: Flink
Issue Type: Sub-task
Components: Streaming
Affects Versions: 0.10
Reporter: Stephan Ewen
Assignee: Stephan Ewen
Fix For: 0.10
Time panes are commonly used for aligned time windows (tumbling and sliding).
These utilities would represent the panes with per-pane keyed state.
The implementation must support:
- Evicting panes efficiently
- iterating over the union of all panes' state per key for all keys
(computing the window function for all keys)
- efficient append the state for a key in a random pane
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