Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/9477#discussion_r43983033
--- Diff:
core/src/main/java/org/apache/spark/shuffle/sort/ShuffleInMemorySorter.java ---
@@ -32,24 +37,39 @@ public int compare(PackedRecordPointer left,
PackedRecordPointer right) {
}
private static final SortComparator SORT_COMPARATOR = new
SortComparator();
+ private final MemoryConsumer consumer;
+ private final TaskMemoryManager memoryManager;
+
/**
* An array of record pointers and partition ids that have been encoded
by
* {@link PackedRecordPointer}. The sort operates on this array instead
of directly manipulating
* records.
*/
- private long[] array;
+ private LongArray array;
/**
* The position in the pointer array where new records can be inserted.
*/
private int pos = 0;
- public ShuffleInMemorySorter(int initialSize) {
+ public ShuffleInMemorySorter(
+ MemoryConsumer consumer,
+ TaskMemoryManager memoryManager,
+ int initialSize) {
+ this.consumer = consumer;
+ this.memoryManager = memoryManager;
assert (initialSize > 0);
- this.array = new long[initialSize];
+ this.array = new LongArray(memoryManager.allocatePage(initialSize *
8L, consumer));
--- End diff --
If this `allocatePage` call were to fail, I think you'd get an NPE here,
since `allocatePage` would return null.
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