[
https://issues.apache.org/jira/browse/BEAM-11928?focusedWorklogId=642482&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-642482
]
ASF GitHub Bot logged work on BEAM-11928:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 26/Aug/21 17:38
Start Date: 26/Aug/21 17:38
Worklog Time Spent: 10m
Work Description: jrmccluskey opened a new pull request #15400:
URL: https://github.com/apache/beam/pull/15400
Modify TryCombine to use standard combine_globally URN instead of routing
through CombinePerKey. Extends the current method of handling combines to
include a special CombineGlobally scope name.
------------------------
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`ValidatesRunner` compliance status (on master branch)
--------------------------------------------------------
<table>
<thead>
<tr>
<th>Lang</th>
<th>ULR</th>
<th>Dataflow</th>
<th>Flink</th>
<th>Samza</th>
<th>Spark</th>
<th>Twister2</th>
</tr>
</thead>
<tbody>
<tr>
<td>Go</td>
<td>---</td>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/";>
<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/badge/icon";>
</a>
<td>
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Go_VR_Flink/lastCompletedBuild/badge/icon";>
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</td>
<td>
<a
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Go_VR_Samza/lastCompletedBuild/badge/icon";>
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<td>
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Go_VR_Spark/lastCompletedBuild/badge/icon";>
</a>
</td>
<td>---</td>
</tr>
<tr>
<td>Java</td>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PostCommit_Java_ValidatesRunner_ULR/lastCompletedBuild/";>
<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Java_ValidatesRunner_ULR/lastCompletedBuild/badge/icon";>
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<td>
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<img alt="Build Status"
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</td>
<td>
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<img alt="Build Status"
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<td>
<a
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Samza/lastCompletedBuild/badge/icon";>
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<img alt="Build Status"
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</a>
</td>
<td>
<a
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Spark/lastCompletedBuild/badge/icon";>
</a><br>
<a
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<img alt="Build Status"
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</td>
<td>
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Java_ValidatesRunner_Twister2/lastCompletedBuild/badge/icon";>
</a>
</td>
</tr>
<tr>
<td>Python</td>
<td>---</td>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PostCommit_Py_VR_Dataflow/lastCompletedBuild/";>
<img alt="Build Status"
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<img alt="Build Status"
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</a><br>
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<img alt="Build Status"
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</a>
</td>
<td>
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<img alt="Build Status"
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<img alt="Build Status"
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</a>
</td>
<td>
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<img alt="Build Status"
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</a>
</td>
<td>
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Python_VR_Spark/lastCompletedBuild/badge/icon";>
</a>
</td>
<td>---</td>
</tr>
<tr>
<td>XLang</td>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PostCommit_XVR_Direct/lastCompletedBuild/";>
<img alt="Build Status"
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</td>
<td>
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<td>
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<img alt="Build Status"
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</a>
</td>
<td>---</td>
</tr>
</tbody>
</table>
Examples testing status on various runners
--------------------------------------------------------
<table>
<thead>
<tr>
<th>Lang</th>
<th>ULR</th>
<th>Dataflow</th>
<th>Flink</th>
<th>Samza</th>
<th>Spark</th>
<th>Twister2</th>
</tr>
</thead>
<tbody>
<tr>
<td>Go</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
<tr>
<td>Java</td>
<td>---</td>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PreCommit_Java_Examples_Dataflow_Cron/lastCompletedBuild/";>
<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PreCommit_Java_Examples_Dataflow_Cron/lastCompletedBuild/badge/icon?subject=V1";>
</a><br>
<a
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<img alt="Build Status"
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</a><br>
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Java_Examples_Dataflow_V2/lastCompletedBuild/badge/icon?subject=V2";>
</a><br>
</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
<tr>
<td>Python</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
<tr>
<td>XLang</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
</tbody>
</table>
Post-Commit SDK/Transform Integration Tests Status (on master branch)
------------------------------------------------------------------------------------------------
<table>
<thead>
<tr>
<th>Go</th>
<th>Java</th>
<th>Python</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/";>
<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/badge/icon";>
</a>
</td>
<td>
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PostCommit_Java/lastCompletedBuild/badge/icon";>
</a>
</td>
<td>
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<img alt="Build Status"
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</a><br>
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</a>
</td>
</tr>
</tbody>
</table>
Pre-Commit Tests Status (on master branch)
------------------------------------------------------------------------------------------------
<table>
<thead>
<tr>
<th>---</th>
<th>Java</th>
<th>Python</th>
<th>Go</th>
<th>Website</th>
<th>Whitespace</th>
<th>Typescript</th>
</tr>
</thead>
<tbody>
<tr>
<td>Non-portable</td>
<td>
<a
href="https://ci-beam.apache.org/job/beam_PreCommit_Java_Cron/lastCompletedBuild/";>
<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PreCommit_Java_Cron/lastCompletedBuild/badge/icon";>
</a><br>
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<td>
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PreCommit_Python_Cron/lastCompletedBuild/badge/icon?subject=Tests";>
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</td>
<td>
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src="https://ci-beam.apache.org/job/beam_PreCommit_Go_Cron/lastCompletedBuild/badge/icon";>
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</td>
</tr>
<tr>
<td>Portable</td>
<td>---</td>
<td>
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<img alt="Build Status"
src="https://ci-beam.apache.org/job/beam_PreCommit_GoPortable_Cron/lastCompletedBuild/badge/icon";>
</a>
</td>
<td>---</td>
<td>---</td>
<td>---</td>
</tr>
</tbody>
</table>
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Issue Time Tracking
-------------------
Worklog Id: (was: 642482)
Remaining Estimate: 0h
Time Spent: 10m
> Go SDK should use the combine_globally urn for global combines.
> ---------------------------------------------------------------
>
> Key: BEAM-11928
> URL: https://issues.apache.org/jira/browse/BEAM-11928
> Project: Beam
> Issue Type: Improvement
> Components: sdk-go
> Reporter: Robert Burke
> Assignee: Jack McCluskey
> Priority: P3
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Reported on
> [https://stackoverflow.com/questions/66446338/issue-with-combine-function-in-apache-beam-go-sdk/66486052#66486052]
> The root is that the Go SDK doesn't use the
> "beam:transform:combine_globally:v1" URN, and always uses
> "beam:transform:combine_per_key:v1" even for global combines, with a
> AddFixedKey DoFn.
> URN in the proto:
> [https://github.com/apache/beam/blob/master/model/pipeline/src/main/proto/beam_runner_api.proto#L347]
>
> Go SDK only having combine_per_key
> [https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/core/runtime/graphx/translate.go#L42]
> We currently "detect" combines via a CombinePerKey scope
> [https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/core/graph/edge.go#L434]
>
> added at beam.TryCombinePerKey
> [https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/combine.go#L58]
> We convert combines into the CombinePayload here
> [https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/core/runtime/graphx/translate.go#L253]
> called above here:
> [https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/core/runtime/graphx/translate.go#L241]
>
> We probably want to just add a graph.CombineGlobal op ( vs the existing
> combine node), or modify the "CombinePerKey" scope hack to have a
> CombineCombineGlobal variant, or somehting that is cleaner than currently
> exists.
> We'd also want to make sure the optimization takes place properly, which
> should be simple enough to detect timing wise at least once, if not as a
> regular benchmark.
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