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https://issues.apache.org/jira/browse/BEAM-10303?focusedWorklogId=478080&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-478080
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ASF GitHub Bot logged work on BEAM-10303:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 02/Sep/20 19:32
Start Date: 02/Sep/20 19:32
Worklog Time Spent: 10m
Work Description: boyuanzz merged pull request #12710:
URL: https://github.com/apache/beam/pull/12710
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Issue Time Tracking
-------------------
Worklog Id: (was: 478080)
Time Spent: 10h 20m (was: 10h 10m)
> FnApiDoFnRunner window observing optimization
> ---------------------------------------------
>
> Key: BEAM-10303
> URL: https://issues.apache.org/jira/browse/BEAM-10303
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-harness
> Reporter: Luke Cwik
> Assignee: Luke Cwik
> Priority: P2
> Labels: portability
> Time Spent: 10h 20m
> Remaining Estimate: 0h
>
> Currently the FnApiDoFnRunner processes each element within it's own window.
> There is an easy optimization where we process the element once if and only
> if the function doesn't observe the window (either directly or indirectly via
> side inputs/state/...).
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