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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2021/07/19 17:59:48 UTC
[GitHub] [beam] lukecwik opened a new pull request #15191: [BEAM-12639] Allow for zero splits in SplitAndSizeRestriction
lukecwik opened a new pull request #15191:
URL: https://github.com/apache/beam/pull/15191
------------------------
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`ValidatesRunner` compliance status (on master branch)
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<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>
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<td>Go</td>
<td>---</td>
<td>
<a href="https://ci-beam.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/">
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<td>---</td>
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<td>XLang</td>
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<td>---</td>
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</tbody>
</table>
Examples testing status on various runners
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<table>
<thead>
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<th>Lang</th>
<th>ULR</th>
<th>Dataflow</th>
<th>Flink</th>
<th>Samza</th>
<th>Spark</th>
<th>Twister2</th>
</tr>
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<td>Go</td>
<td>---</td>
<td>---</td>
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<td>---</td>
<td>---</td>
<td>---</td>
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<td>Python</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
<td>---</td>
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<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)
------------------------------------------------------------------------------------------------
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<th>Go</th>
<th>Java</th>
<th>Python</th>
</tr>
</thead>
<tbody>
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<td>
<a href="https://ci-beam.apache.org/job/beam_PostCommit_Go/lastCompletedBuild/">
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</td>
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</table>
Pre-Commit Tests Status (on master branch)
------------------------------------------------------------------------------------------------
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<th>---</th>
<th>Java</th>
<th>Python</th>
<th>Go</th>
<th>Website</th>
<th>Whitespace</th>
<th>Typescript</th>
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</thead>
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<td>Non-portable</td>
<td>
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[GitHub] [beam] lukecwik commented on pull request #15191: [BEAM-12639] Allow for zero splits in SplitAndSizeRestriction
Posted by GitBox <gi...@apache.org>.
lukecwik commented on pull request #15191:
URL: https://github.com/apache/beam/pull/15191#issuecomment-882746359
R: @youngoli @lostluck
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[GitHub] [beam] lukecwik merged pull request #15191: [BEAM-12639] Allow for zero splits in SplitAndSizeRestriction
Posted by GitBox <gi...@apache.org>.
lukecwik merged pull request #15191:
URL: https://github.com/apache/beam/pull/15191
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[GitHub] [beam] lostluck commented on a change in pull request #15191: [BEAM-12639] Allow for zero splits in SplitAndSizeRestriction
Posted by GitBox <gi...@apache.org>.
lostluck commented on a change in pull request #15191:
URL: https://github.com/apache/beam/pull/15191#discussion_r680412791
##########
File path: sdks/go/pkg/beam/core/runtime/exec/sdf_invokers_test.go
##########
@@ -382,3 +382,50 @@ func (fn *VetKvSdf) ProcessElement(rt *VetRTracker, i, j int, emit func(*VetRest
rest.ProcessElm = true
emit(rest)
}
+
+// VetEmptyInitialSplitSdf runs an SDF in order to test that these methods get called properly,
+// each method will flip the corresponding flag in the passed in VetRestriction,
+// overwrite the restriction's Key and Val with the last seen input elements,
+// and retain the other fields in the VetRestriction.
+type VetEmptyInitialSplitSdf struct {
Review comment:
That sounds about right. The compiler does hoist embeded type methods to the parent type, but the reflect libraries don't automatically hoist methods on embedded types. We'd need to add it to the analysis to get it working. Not hard, just hasn't been required to add.
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[GitHub] [beam] youngoli commented on a change in pull request #15191: [BEAM-12639] Allow for zero splits in SplitAndSizeRestriction
Posted by GitBox <gi...@apache.org>.
youngoli commented on a change in pull request #15191:
URL: https://github.com/apache/beam/pull/15191#discussion_r673387434
##########
File path: sdks/go/pkg/beam/core/runtime/exec/sdf_invokers_test.go
##########
@@ -382,3 +382,50 @@ func (fn *VetKvSdf) ProcessElement(rt *VetRTracker, i, j int, emit func(*VetRest
rest.ProcessElm = true
emit(rest)
}
+
+// VetEmptyInitialSplitSdf runs an SDF in order to test that these methods get called properly,
+// each method will flip the corresponding flag in the passed in VetRestriction,
+// overwrite the restriction's Key and Val with the last seen input elements,
+// and retain the other fields in the VetRestriction.
+type VetEmptyInitialSplitSdf struct {
Review comment:
Style Nit: This could probably be implemented more succinctly through [type embedding](https://golang.org/doc/effective_go#embedding) (kinda like inheritance, you can use all the methods of VetSdf, just changing SplitRestriction). Not worth blocking the PR on since the code works perfectly fine, just throwing it out there for future reference.
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[GitHub] [beam] lukecwik commented on pull request #15191: [BEAM-12639] Allow for zero splits in SplitAndSizeRestriction
Posted by GitBox <gi...@apache.org>.
lukecwik commented on pull request #15191:
URL: https://github.com/apache/beam/pull/15191#issuecomment-882746359
R: @youngoli @lostluck
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[GitHub] [beam] lukecwik commented on a change in pull request #15191: [BEAM-12639] Allow for zero splits in SplitAndSizeRestriction
Posted by GitBox <gi...@apache.org>.
lukecwik commented on a change in pull request #15191:
URL: https://github.com/apache/beam/pull/15191#discussion_r673433028
##########
File path: sdks/go/pkg/beam/core/runtime/exec/sdf_invokers_test.go
##########
@@ -382,3 +382,50 @@ func (fn *VetKvSdf) ProcessElement(rt *VetRTracker, i, j int, emit func(*VetRest
rest.ProcessElm = true
emit(rest)
}
+
+// VetEmptyInitialSplitSdf runs an SDF in order to test that these methods get called properly,
+// each method will flip the corresponding flag in the passed in VetRestriction,
+// overwrite the restriction's Key and Val with the last seen input elements,
+// and retain the other fields in the VetRestriction.
+type VetEmptyInitialSplitSdf struct {
Review comment:
That looks so convenient but was unable to get it to work since the ProcessElement method was not being found.
Code I used was:
```
// VetEmptyInitialSplitSdf runs an SDF in order to test that these methods get called properly,
// each method will flip the corresponding flag in the passed in VetRestriction,
// overwrite the restriction's Key and Val with the last seen input elements,
// and retain the other fields in the VetRestriction.
type VetEmptyInitialSplitSdf struct {
sdf *VetSdf `default:"{}"`
}
// SplitRestriction outputs zero restrictions.
func (fn *VetEmptyInitialSplitSdf) SplitRestriction(i int, rest *VetRestriction) []*VetRestriction {
return []*VetRestriction{}
}
```
Error I got was:
```
=== RUN TestSdfNodes
--- FAIL: TestSdfNodes (0.00s)
sdf_test.go:62: invalid function: graph.AsDoFn: for Fn named github.com/apache/beam/sdks/go/pkg/beam/core/runtime/exec.VetEmptyInitialSplitSdf
failed to find ProcessElement method
```
Will merge as-is. Using the type embedding seems very convenient to have.
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[GitHub] [beam] lukecwik commented on pull request #15191: [BEAM-12639] Allow for zero splits in SplitAndSizeRestriction
Posted by GitBox <gi...@apache.org>.
lukecwik commented on pull request #15191:
URL: https://github.com/apache/beam/pull/15191#issuecomment-882746359
R: @youngoli @lostluck
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