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https://issues.apache.org/jira/browse/BEAM-3042?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16285595#comment-16285595
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ASF GitHub Bot commented on BEAM-3042:
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pabloem opened a new pull request #4241: [BEAM-3042] Renaming properties form
IO target counter name.
URL: https://github.com/apache/beam/pull/4241
These metrics will be used internally to track Bytes read and time spent
reading both side inputs and shuffle. This rename is to match the internal
dataflow design for these metrics.
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> Add tracking of bytes read / time spent when reading side inputs
> ----------------------------------------------------------------
>
> Key: BEAM-3042
> URL: https://issues.apache.org/jira/browse/BEAM-3042
> Project: Beam
> Issue Type: Bug
> Components: sdk-py-core
> Reporter: Pablo Estrada
> Assignee: Pablo Estrada
>
> It is difficult for Dataflow users to understand how modifying a pipeline or
> data set can affect how much inter-transform IO is used in their job. The
> intent of this feature request is to help users understand how side inputs
> behave when they are consumed.
> This will allow users to understand how much time and how much data their
> pipeline uses to read/write to inter-transform IO. Users will also be able to
> modify their pipelines and understand how their changes affect these IO
> metrics.
> For further information, please review the internal Google doc
> go/insights-transform-io-design-doc.
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