mapleFU commented on code in PR #43698:
URL: https://github.com/apache/arrow/pull/43698#discussion_r1730226620
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cpp/src/arrow/dataset/file_parquet_test.cc:
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@@ -910,5 +911,53 @@ TEST_F(TestParquetFileFormat, MultithreadedScanRegression)
{
}
}
+TEST_F(TestParquetFileFormat, MultithreadedComputeRegression) {
+ // GH-43694: Test similar situation as MultithreadedScanRegression but with
+ // the exec context instead
+
+ auto reader = MakeGeneratedRecordBatch(schema({field("utf8", utf8())}),
10000, 100);
+ ASSERT_OK_AND_ASSIGN(auto buffer, ParquetFormatHelper::Write(reader.get()));
+
+ std::vector<Future<>> completes;
+ std::vector<std::shared_ptr<arrow::internal::ThreadPool>> pools;
+
+ for (int idx = 0; idx < 2; ++idx) {
+ auto buffer_reader = std::make_shared<DelayedBufferReader>(buffer);
+ auto source = std::make_shared<FileSource>(buffer_reader, buffer->size());
+ auto fragment = MakeFragment(*source);
+ std::shared_ptr<Scanner> scanner;
+
+ {
+ auto options = std::make_shared<ScanOptions>();
+ ASSERT_OK_AND_ASSIGN(auto thread_pool,
arrow::internal::ThreadPool::Make(1));
+ pools.emplace_back(thread_pool);
+ options->exec_context =
+ ::arrow::ExecContext(::arrow::default_memory_pool(),
pools.back().get());
Review Comment:
How can we ensure this is being called?
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