lukecwik commented on a change in pull request #11122: [BEAM-9346] Improve the
efficiency of TFRecordIO
URL: https://github.com/apache/beam/pull/11122#discussion_r406875232
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File path: sdks/java/core/src/main/java/org/apache/beam/sdk/io/WriteFiles.java
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@@ -410,13 +412,44 @@ private GatherResults(Coder<ResultT> resultCoder) {
} else {
// Pass results via a side input rather than reshuffle, because we
need to get an empty
// iterable to finalize if there are no results.
- return input
- .getPipeline()
- .apply(Reify.viewInGlobalWindow(input.apply(View.asList()),
ListCoder.of(resultCoder)));
+ return input.apply("ToList", Combine.globally(new
ToListCombineFn<>()));
Review comment:
You could always apply the trigger if it is guaranteed to produce output by
checking what the trigger definition is. I don't think you need a flag.
I'm not sure how much of a holistic picture of the whole WriteFiles
transform was done to see if there is a better way to structure the transforms.
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