diff --git a/hudi-common/src/main/java/org/apache/hudi/common/util/ObjectSizeCalculator.java b/hudi-common/src/main/java/org/apache/hudi/common/util/ObjectSizeCalculator.java index 7e625e8eb..99b2d5a2c 100644 --- a/hudi-common/src/main/java/org/apache/hudi/common/util/ObjectSizeCalculator.java +++ b/hudi-common/src/main/java/org/apache/hudi/common/util/ObjectSizeCalculator.java @@ -54,6 +54,8 @@ import java.util.Set; * @author Attila Szegedi */ public class ObjectSizeCalculator { + private static final ThreadLocal OBJECT_SIZE_CALCULATOR_THREAD_LOCAL = ThreadLocal.withInitial(() -> new ObjectSizeCalculator(CurrentLayout.SPEC)); + private static class CurrentLayout { private static final MemoryLayoutSpecification SPEC = getEffectiveMemoryLayoutSpecification(); @@ -71,7 +73,7 @@ public class ObjectSizeCalculator { * @throws UnsupportedOperationException if the current vm memory layout cannot be detected. */ public static long getObjectSize(Object obj) throws UnsupportedOperationException { - return obj == null ? 0 : new ObjectSizeCalculator(CurrentLayout.SPEC).calculateObjectSize(obj); + return obj == null ? 0 : OBJECT_SIZE_CALCULATOR_THREAD_LOCAL.get().calculateObjectSize(obj); } // Fixed object header size for arrays.