gitmodimo commented on code in PR #47129: URL: https://github.com/apache/arrow/pull/47129#discussion_r2242101336
########## cpp/src/arrow/dataset/dataset_writer_test.cc: ########## @@ -275,6 +276,41 @@ TEST_F(DatasetWriterTestFixture, BatchGreaterThanMaxRowsQueued) { ASSERT_EQ(paused_, false); } +TEST_F(DatasetWriterTestFixture, BatchWriteConcurrent) { Review Comment: IIUC future is thread safe as long it is not concurrently destroyed or overwritten . Here we always operate on copies so we are safe. Indeed the race was logical due to invalid backpressure API. We could not reliably tell whether current_value was actually increased. -- 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. To unsubscribe, e-mail: github-unsubscr...@arrow.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org