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Posted to issues@beam.apache.org by "Robert Bradshaw (JIRA)" <ji...@apache.org> on 2018/12/17 14:31:00 UTC

[jira] [Updated] (BEAM-6243) TFX pipelines experience a huge blowup in intermediate data size

     [ https://issues.apache.org/jira/browse/BEAM-6243?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Bradshaw updated BEAM-6243:
----------------------------------
    Issue Type: Bug  (was: Sub-task)
        Parent:     (was: BEAM-6015)

> TFX pipelines experience a huge blowup in intermediate data size
> ----------------------------------------------------------------
>
>                 Key: BEAM-6243
>                 URL: https://issues.apache.org/jira/browse/BEAM-6243
>             Project: Beam
>          Issue Type: Bug
>          Components: runner-flink
>            Reporter: Robert Bradshaw
>            Priority: Major
>
> The elements in TFX intermediate collections are dictionaries of (typically single-element) numpy arrays, which are (relatively) expensive to serialize (e.g. using pickle for the numpy wrapper of a primitive int/float, repeating the column names in every element).
> Though it'd be good to use a better intermediate representation, this is exacerbated because the fusion algorithm does not pack as much possible into executable stages. 



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