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https://issues.apache.org/jira/browse/BEAM-4276?focusedWorklogId=106927&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-106927
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ASF GitHub Bot logged work on BEAM-4276:
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Author: ASF GitHub Bot
Created on: 29/May/18 23:18
Start Date: 29/May/18 23:18
Worklog Time Spent: 10m
Work Description: lostluck opened a new pull request #5507: Robert
Burke Robert Burke [BEAM-4276] Add combiner lifting support to Go SDK
URL: https://github.com/apache/beam/pull/5507
Implements combiner lifting support to the Go SDK, for universal runners.
Per https://s.apache.org/beam-runner-api-combine-model, the Go SDK puts the
URN and CombinePayload on the composite containing the basic unlifted combine
implementation for runners which don't support the optimization.
There are a few TODOs but I can lift them into JIRAs as necessary. Of note
is that the current go implementation for Top uses an unencodable accumulator
type (it contains []interface{}) so it is unable to be lifted at present.
However, when this case is detected, the SDK will simply not add the URN and
payload and continue with it's existing representation as a vanilla ParDo to
runners.
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Issue Time Tracking
-------------------
Worklog Id: (was: 106927)
Time Spent: 2h 10m (was: 2h)
> Implement the portable lifted Combiner transforms in Go SDK
> -----------------------------------------------------------
>
> Key: BEAM-4276
> URL: https://issues.apache.org/jira/browse/BEAM-4276
> Project: Beam
> Issue Type: Sub-task
> Components: sdk-go
> Reporter: Henning Rohde
> Assignee: Robert Burke
> Priority: Major
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
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