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Posted to issues@beam.apache.org by "Dmytro Kozhevin (Jira)" <ji...@apache.org> on 2021/01/13 20:10:00 UTC
[jira] [Assigned] (BEAM-11629) Optimize the cache storage for
InteractiveRunner
[ https://issues.apache.org/jira/browse/BEAM-11629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dmytro Kozhevin reassigned BEAM-11629:
--------------------------------------
Assignee: Dmytro Kozhevin
> Optimize the cache storage for InteractiveRunner
> ------------------------------------------------
>
> Key: BEAM-11629
> URL: https://issues.apache.org/jira/browse/BEAM-11629
> Project: Beam
> Issue Type: Improvement
> Components: runner-py-interactive
> Reporter: Dmytro Kozhevin
> Assignee: Dmytro Kozhevin
> Priority: P2
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Currently InteractiveRunner wraps every record of the cached PCollection into WindowedValue. There is 2 problems about this:
> 1) The windowing information is unnecessary for the batch-mode runs (everything is in the same global window).
> 2) Since the cache is stored as text, we pickle the WindowedValue, which adds ~500 bytes of data to every record (e.g. a cache of just 1000000 integers would take ~500MB instead of ~4MB).
> These issues significantly slow down the interactive runs for data with lots of small rows.
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