Jark Wu created FLINK-7001:
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Summary: Improve performance of Sliding Time Window with pane
optimization
Key: FLINK-7001
URL: https://issues.apache.org/jira/browse/FLINK-7001
Project: Flink
Issue Type: Improvement
Components: DataStream API
Reporter: Jark Wu
Assignee: Jark Wu
Fix For: 1.4.0
Currently, the implementation of time-based sliding windows treats each window
individually and replicates records to each window. For a window of 10 minute
size that slides by 1 second the data is replicated 600 fold (10 minutes / 1
second). We can optimize sliding window by divide windows into panes (aligned
with slide), so that we can avoid record duplication and leverage the
checkpoint.
I will attach a more detail design doc to the issue.
The following issues are similar to this issue: FLINK-5387, FLINK-6990
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