Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/6159#discussion_r30559095
--- Diff:
unsafe/src/main/java/org/apache/spark/unsafe/map/BytesToBytesMap.java ---
@@ -427,7 +496,9 @@ public void putNewKey(
* @param capacity the new map capacity
*/
private void allocate(int capacity) {
- capacity = Math.max((int) Math.min(Integer.MAX_VALUE,
nextPowerOf2(capacity)), 64);
+ assert (capacity >= 0);
+ // The capacity needs to be divisible by 64 so that our bit set can be
sized properly
+ capacity = Math.max((int) Math.min(MAX_CAPACITY,
nextPowerOf2(capacity)), 64);
longArray = new LongArray(memoryManager.allocate(capacity * 8 * 2));
--- End diff --
Yep, good catch. I was a bit tired while working on this :(
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