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https://issues.apache.org/jira/browse/BEAM-6738?focusedWorklogId=203959&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-203959
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ASF GitHub Bot logged work on BEAM-6738:
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                Author: ASF GitHub Bot
            Created on: 25/Feb/19 23:01
            Start Date: 25/Feb/19 23:01
    Worklog Time Spent: 10m 
      Work Description: lostluck commented on issue #7935: [BEAM-6738] Cache 
Combine Invokers.
URL: https://github.com/apache/beam/pull/7935#issuecomment-467219818
 
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 203959)
    Time Spent: 50m  (was: 40m)

> Reduce Combine overhead
> -----------------------
>
>                 Key: BEAM-6738
>                 URL: https://issues.apache.org/jira/browse/BEAM-6738
>             Project: Beam
>          Issue Type: Sub-task
>          Components: sdk-go
>            Reporter: Robert Burke
>            Assignee: Robert Burke
>            Priority: Minor
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> Sibling to BEAM-4726 for ParDos, this should be to add the invoker caching to 
> the exec/combine.go units, since for example AddInput would be done for every 
> single element, and for large key spaces, the same applies for the other 
> CombineFn components.



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