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ASF GitHub Bot logged work on BEAM-6740: ---------------------------------------- Author: ASF GitHub Bot Created on: 03/Jul/19 13:54 Start Date: 03/Jul/19 13:54 Worklog Time Spent: 10m Work Description: iemejia commented on issue #8964: [BEAM-6740] Add PTransformTranslator for Combine.Globally URL: https://github.com/apache/beam/pull/8964#issuecomment-507665143 Run Spark ValidatesRunner ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 271642) Time Spent: 3h (was: 2h 50m) > Combine.Globally translation is never called > -------------------------------------------- > > Key: BEAM-6740 > URL: https://issues.apache.org/jira/browse/BEAM-6740 > Project: Beam > Issue Type: Bug > Components: runner-core > Reporter: Etienne Chauchot > Assignee: Ismaël Mejía > Priority: Major > Labels: portability > Time Spent: 3h > Remaining Estimate: 0h > > Beam translates Combine.Globally as a composite transform composed of: > * Map that assigns Void keys > * Combine.PerKey > on spark: As Combine.Perkey uses a spark GBK inside it, the runner adds its > own translation of Combine.Globally to avoid less performant GBK. This > translation should be called in place of entering the composite transform > translation.A pipeline like this: > {code:java} > PCollection<Integer> input = pipeline.apply(Create.of(1, 2, 3, 4, 5, 6, 7, 8, > 9, 10)); > input.apply( > Combine.globally(new IntegerCombineFn())); > {code} > {code:java} > private static class IntegerCombineFn extends Combine.CombineFn<Integer, > Integer, Integer> { > @Override > public Integer createAccumulator() { > return 0; > } > @Override > public Integer addInput(Integer accumulator, Integer input) { > return accumulator + input; > } > @Override > public Integer mergeAccumulators(Iterable<Integer> accumulators) { > Integer result = 0; > for (Integer value : accumulators) { > result += value; > } > return result; > } > @Override > public Integer extractOutput(Integer accumulator) { > return accumulator; > } > } > {code} > is translated as the above composite. -- This message was sent by Atlassian JIRA (v7.6.3#76005)