Github user jiangxb1987 commented on a diff in the pull request: https://github.com/apache/spark/pull/19077#discussion_r137361142 --- Diff: common/unsafe/src/main/java/org/apache/spark/unsafe/memory/HeapMemoryAllocator.java --- @@ -47,23 +47,29 @@ private boolean shouldPool(long size) { @Override public MemoryBlock allocate(long size) throws OutOfMemoryError { - if (shouldPool(size)) { + int arraySize = (int)((size + 7) / 8); --- End diff -- Maybe we should make the method to tackle long values.
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