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https://issues.apache.org/jira/browse/BEAM-14177?focusedWorklogId=747921&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-747921
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ASF GitHub Bot logged work on BEAM-14177:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 25/Mar/22 18:30
            Start Date: 25/Mar/22 18:30
    Worklog Time Spent: 10m 
      Work Description: lukecwik commented on pull request #17184:
URL: https://github.com/apache/beam/pull/17184#issuecomment-1079293659


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 747921)
    Time Spent: 40m  (was: 0.5h)

> GroupByKey iteration caching broken for portable runners like Dataflow runner 
> v2
> --------------------------------------------------------------------------------
>
>                 Key: BEAM-14177
>                 URL: https://issues.apache.org/jira/browse/BEAM-14177
>             Project: Beam
>          Issue Type: Bug
>          Components: sdk-java-harness
>            Reporter: Luke Cwik
>            Assignee: Luke Cwik
>            Priority: P2
>             Fix For: 2.38.0
>
>          Time Spent: 40m
>  Remaining Estimate: 0h
>
> The wrong cache key is being used as it has not been namespaced to the state 
> key.
> This was previously being done within StateFetchingIterators but 
> https://github.com/apache/beam/pull/17121 changed that to use a single shared 
> key.
> The fix is to subcache the cache before passing it into 
> StateFetchingIterators restoring the prior behavior.



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