mapleFU commented on code in PR #38885:
URL: https://github.com/apache/arrow/pull/38885#discussion_r1407194544
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cpp/src/arrow/dataset/dataset_writer.cc:
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@@ -621,11 +621,18 @@ class DatasetWriter::DatasetWriterImpl {
backpressure = writer_state_.open_files_throttle.Acquire(1);
if (!backpressure.is_finished()) {
EVENT_ON_CURRENT_SPAN("DatasetWriter::Backpressure::TooManyOpenFiles");
+
writer_state_.rows_in_flight_throttle.Release(next_chunk->num_rows());
Review Comment:
Hmm I think the best way is using something like a "RAII Guard" here. This
might need kind of refactor the throttle type here
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