danepitkin commented on code in PR #36934:
URL: https://github.com/apache/arrow/pull/36934#discussion_r1278075653
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java/dataset/src/main/java/org/apache/arrow/dataset/file/FileSystemDatasetFactory.java:
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@@ -26,14 +28,18 @@
*/
public class FileSystemDatasetFactory extends NativeDatasetFactory {
+ private static final AtomicBoolean addedS3ShutdownHook = new
AtomicBoolean(false);
Review Comment:
I added an atomic check to ensure we only register a single hook. Without
it, we could register multiple hooks to call `EnsureS3Finalized`.
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