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https://issues.apache.org/jira/browse/BEAM-13541?focusedWorklogId=702520&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-702520
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ASF GitHub Bot logged work on BEAM-13541:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 31/Dec/21 03:11
Start Date: 31/Dec/21 03:11
Worklog Time Spent: 10m
Work Description: robertwb commented on pull request #16354:
URL: https://github.com/apache/beam/pull/16354#issuecomment-1003251305
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Issue Time Tracking
-------------------
Worklog Id: (was: 702520)
Time Spent: 3h 10m (was: 3h)
> Use runtime information to improve CoGroupByKey caching
> -------------------------------------------------------
>
> Key: BEAM-13541
> URL: https://issues.apache.org/jira/browse/BEAM-13541
> Project: Beam
> Issue Type: Improvement
> Components: sdk-ideas
> Reporter: Sunil Pedapudi
> Assignee: Robert Bradshaw
> Priority: P0
> Fix For: 2.36.0
>
> Time Spent: 3h 10m
> Remaining Estimate: 0h
>
> Currently, CoGroupByKey creates UnionTables that are Flattened. The Flattened
> output is processed by a GroupByKey to produce a CoGbkResult (via
> ConstructCoGbkResultFn).
>
> Given the performance of CoGBK is greatly impacted based on the which
> elements are cached in the (finitely sized) in-memory results, it would be
> useful if CoGbkResult can use runtime information to prioritize which
> elements are stored in-memory.
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