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https://issues.apache.org/jira/browse/BEAM-9436?focusedWorklogId=410313&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-410313
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ASF GitHub Bot logged work on BEAM-9436:
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                Author: ASF GitHub Bot
            Created on: 26/Mar/20 14:52
            Start Date: 26/Mar/20 14:52
    Worklog Time Spent: 10m 
      Work Description: iemejia commented on issue #11055: [BEAM-9436] Improve 
GBK in spark structured streaming runner
URL: https://github.com/apache/beam/pull/11055#issuecomment-604475588
 
 
   I think the point of the comment (or at least on my case on OOM) was not 
about this PR solving it or not but more about removing the comment `// 
Materialize groupByKeyOnly values, potential OOM because of creation of new 
iterable` which i think gave a valid orientation and now can be missed for 
someone reading the code, so probably letting the comment back is enough (of 
course in an updated version if it makes sense). 
 
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Issue Time Tracking
-------------------

    Worklog Id:     (was: 410313)
    Time Spent: 13h 20m  (was: 13h 10m)

> Improve performance of GBK
> --------------------------
>
>                 Key: BEAM-9436
>                 URL: https://issues.apache.org/jira/browse/BEAM-9436
>             Project: Beam
>          Issue Type: Improvement
>          Components: runner-spark
>            Reporter: Etienne Chauchot
>            Assignee: Etienne Chauchot
>            Priority: Major
>              Labels: structured-streaming
>          Time Spent: 13h 20m
>  Remaining Estimate: 0h
>




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