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https://issues.apache.org/jira/browse/BEAM-10670?focusedWorklogId=593392&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-593392
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ASF GitHub Bot logged work on BEAM-10670:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 07/May/21 16:10
Start Date: 07/May/21 16:10
Worklog Time Spent: 10m
Work Description: iemejia opened a new pull request #14755:
URL: https://github.com/apache/beam/pull/14755
We have had many reports of performance degradation since the switch to the
SDF by default read translation, and our own tests found between 20-25%
performance degradation that we cannot justify. This PR is basically 'a revert'
of #13021
It introduces the new `use_sdf_read` so we can still have a path to test the
performance of the SDF path so we can be able to judge when to make it the
default again.
R: @kennknowles
CC: @boyuanzz @lukecwik @ibzib (for awareness)
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Issue Time Tracking
-------------------
Worklog Id: (was: 593392)
Time Spent: 38h (was: 37h 50m)
> Make non-portable Splittable DoFn the only option when executing Java "Read"
> transforms
> ---------------------------------------------------------------------------------------
>
> Key: BEAM-10670
> URL: https://issues.apache.org/jira/browse/BEAM-10670
> Project: Beam
> Issue Type: Improvement
> Components: sdk-java-core
> Reporter: Luke Cwik
> Assignee: Ismaël Mejía
> Priority: P1
> Labels: Clarified
> Fix For: 2.30.0
>
> Time Spent: 38h
> Remaining Estimate: 0h
>
> All runners seem to be capable of migrating to splittable DoFn for
> non-portable execution except for Dataflow runner v1 which will internalize
> the current primitive read implementation that is shared across runner
> implementations.
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