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https://issues.apache.org/jira/browse/FLINK-21054?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu closed FLINK-21054.
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Resolution: Fixed
Fixed in master: c4bfa9fa68c2944582589b11c7d42b99356ca124
> Implement mini-batch optimized slicing window aggregate operator
> ----------------------------------------------------------------
>
> Key: FLINK-21054
> URL: https://issues.apache.org/jira/browse/FLINK-21054
> Project: Flink
> Issue Type: Sub-task
> Components: Table SQL / Runtime
> Reporter: Jark Wu
> Assignee: Jark Wu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.13.0
>
>
> We have supported cumulative windows in FLINK-19605. However, the current
> cumulative window is not efficient, because the slices are not shared.
> We leverages the slicing ideas proposed in FLINK-7001 and this design doc
> [1]. The slicing is an optimized implementation for hopping, cumulative,
> tumbling windows. Besides of that, we introduced ManagedMemory based
> mini-batch optimization for the slicing window aggregate operator, this can
> tremendously reduce the accessing of state and get the higher throughtput
> without latency loss.
> [1]:
> https://docs.google.com/document/d/1ziVsuW_HQnvJr_4a9yKwx_LEnhVkdlde2Z5l6sx5HlY/edit#
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